Researchers Database

HAYASHIDA Sachiko

FacultyFaculty Division of Natural Sciences Research Group of Environmental Sciences
PositionProfessor
Last Updated :2022/10/05

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Profile and Settings

  • Contact Point

    sachikohchikyu.ac.jp
  • Name (Japanese)

    Hayashida
  • Name (Kana)

    Sachiko

Degree

  • Science, Nagoya University, Jul. 1985

Research Interests

  • Study on atmospheric minor species observed by satellite remote sensing

Research Areas

  • Natural sciences, Atmospheric and hydrospheric science
  • Environmental science/Agricultural science, Environmental dynamics

Research Experience

  • Aug. 2019, 9999, Research Institute for Humanity and Nature, Research Division, Professor, Prof. Dr., Japan
  • Mar. 2001, 9999, Nara Women’s University, Faculty of Science, Professor, Japan
  • Jan. 1994, Feb. 2001, Nara Womens University, Associate Professor
  • Apr. 1999, Mar. 2000, Kyoto University, Graduate School of Energy Scienc, Assoiate Proffessor
  • Apr. 1990, Dec. 1993, 国立環境研究所, Senior Scientist
  • Sep. 1992, Sep. 1993, National Oceanic and Atmospheric Administration, Visiting Researcher, United States
  • Apr. 1985, Mar. 1990, National Institute for Environmental Studies, Researcher, Japan
  • Jun. 2022, 9999, Remote Sensing Technology Center of Japan, Director (part-time)

Education

  • Apr. 1982, Mar. 1985, Nagoya University, Graduate School of Science, 大気水圏科学
  • Apr. 1980, Mar. 1982, Nagoya University, Graduate School of Science, Science of Atmosphere and Hydrosphere
  • Apr. 1976, Mar. 1980, Kyoto University, Faculty of Science, 地球物理学

Association Memberships

  • 日本エアロゾル学会
  • 日本大気化学会
  • JpGU
  • American Geophysical Union
  • Meteorological Society of Japan
  • 日本リモートセンシング学会

Academic Contribution

  • Member of iCACGP/IAMAS, Review, ICSU, 2010, 2018

Ⅱ.研究活動実績

Published Papers

  • Refereed, ISPRS International Journal of Geo-Information, MDPI AG, Mapping Brick Kilns to Support Environmental Impact Studies around Delhi Using Sentinel-2, Prakhar Misra; Ryoichi Imasu; Sachiko Hayashida; Ardhi Adhary Arbain; Ram Avtar; Wataru Takeuchi, Cities lying in the Indo-Gangetic plains of South Asia have the world’s worst anthropogenic air pollution, which is often attributed to urban growth. Brick kilns, facilities for producing fired clay-bricks for construction are often found at peri-urban region of South Asian cities. Although brick kilns are significant air pollutant emitters, their contribution in under-represented in air pollution emission inventories due to unavailability of their distribution. This research overcomes this gap by proposing publicly available remote sensing dataset based approach for mapping brick-kiln locations using object detection and pixel classification. As brick kiln locations are not permanent, an open-dataset based methodology is advantageous for periodically updating their locations. Brick kilns similar to Bull Trench Kilns were identified using the Sentinel-2 imagery around the state of Delhi in India. The unique geometric and spectral features of brick kilns distinguish them from other classes such as built-up, vegetation and fallow-land even in coarse resolution imagery. For object detection, transfer learning was used to overcome the requirement of huge training datasets, while for pixel-classification random forest algorithm was used. The method achieved a recall of 0.72, precision of 0.99 and F1 score of 0.83. Overall 1564 kilns were detected, which are substantially higher than what was reported in an earlier study over the same region. We find that brick kilns are located outside urban areas in proximity to outwardly expanding built-up areas and tall built structures. Duration of brick kiln operation was also estimated by analyzing the time-series of normalized difference vegetation index (NDVI) over the brick kiln locations. The brick kiln locations can be further used for updating land-use emission inventories to assess particulate matter and black carbon emissions., 11 Sep. 2020, 9, 9, 544, 544, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, 那覇で観測された対流圏オゾンの増大現象について, 山口小雪; 林田佐智子, Sep. 2020, 67, 8, 445, 453, Scientific journal
  • Refereed, Scientific Reports, Springer Science and Business Media LLC, PM2.5 diminution and haze events over Delhi during the COVID-19 lockdown period: an interplay between the baseline pollution and meteorology, Surendra K. Dhaka; Chetna; Vinay Kumar; Vivek Panwar; A. P. Dimri; Narendra Singh; Prabir K. Patra; Yutaka Matsumi; Masayuki Takigawa; Tomoki Nakayama; Kazuyo Yamaji; Mizuo Kajino; Prakhar Misra; Sachiko Hayashida, Aug. 2020, 10, 1, Scientific journal
  • Refereed, SOLA, METEOROLOGICAL SOC JAPAN, Can Delhi's Pollution be Affected by Crop Fires in the Punjab Region?, Masayuki Takigawa; Prabir K. Patra; Yutaka Matsumi; Surendra K. Dhaka; Tomoki Nakayama; Kazuyo Yamaji; Mizuo Kajino; Sachiko Hayashida, The severe air pollution events continue to occur every year during late October and early November in Delhi, forcing air/ land traffic disruptions and anxiety in the daily life of the citizens. We analyze the behaviors of the air pollution events in October and November 2019 that arose from the crop-residue burning as seen using remote sensing techniques. Transport pathways and the mean transit time from the fire hotspots are evaluated using the FLEXPART (FLEXible PARTicle dispersion model). Our results suggest that the polluted regions in Delhi are partly influenced by the crop-residue burning. The uncertainty of our evaluation can be attributable to insufficient information on emission sources because the biomass burning emission based on daily-basis fire radiative power (FRP) of Moderate-Resolution Imaging Spectroradiometry (MODIS) is significantly degraded by the existence of hazy clouds. In future, it is desirable to establish a dense measurement network between Punjab and Delhi for the early detection of the source signals of aerosol emissions and their transport in this region. The FLEXPART model simulation shows the transport of emission signals from Punjab to Delhi, which further expands toward the Bengal region within a span of two days., Apr. 2020, 16, 86, 91, Scientific journal, True, True
  • Refereed, Scientific Reports, Springer Science and Business Media LLC, Detectability assessment of a satellite sensor for lower tropospheric ozone responses to its precursors emission changes in East Asian summer, Mizuo Kajino; Sachiko Hayashida; Tsuyoshi Thomas Sekiyama; Makoto Deushi; Kazuki Ito; Xiong Liu, Dec. 2019, 9, 1, 19629, Scientific journal
  • Refereed, BAMS, American Meteorological Society, New Era of Air Quality Monitoring from Space: Geostationary Environment Monitoring Spectrometer (GEMS), Jhoon Kim; Ukkyo Jeong; Myoung-Hwan Ahn; S. Hayashida; et, in review, Aug. 2019, 101, 1, E1, E22, Scientific journal
  • Refereed, Journal of Earth System Science, INDIAN ACAD SCIENCES, Seasonal and annual variation of AIRS retrieved CO2 over India during 2003-2011, Gupta. A; S. K. Dhaka; Y. Matsumi; R. Imasu; S. Hayashida; V. Singh, The present study shows spatio-temporal variability in carbon dioxide (CO2) in the mid-tropospheric region over India (0-32oN, 60-100oE) during 2003-2011. The CO2 data used in the study is retrieved from Atmospheric Infra-Red Sounder (AIRS). Analysis of 9yrs of data shows that the CO2 exhibits a linear increasing trend of 2.01ppm/year. Besides displaying the linear increasing trend, data show strong seasonal and annual variability. Concentration of CO2 is observed to be highest around April-May (summer months), which decreases by 4-5ppm during the monsoon months. Seasonal decrease in CO2 concentration appeared to be influenced by the monsoonal activity. Low OLR (proxy of convection) associated with high rainfall during summer monsoon via increasing vegetation index (NDVI) appears to be the primary cause for the seasonal decrease in CO2 through photosynthesis. Correlation coefficient between CO2 and NDVI is of the order of -0.90 suggesting vegetation as a seasonal sink of CO2. Decrease in CO2 concentration takes place at a delay of 2-3months of rainfall. However, convection seems to be another component, which causes uplifting of CO2 during dry summer (April and May) making high concentration in the mid-troposphere as shown by increase in the planetary boundary layer (PBL) height in this period. Eastward propagating intra-seasonal oscillations with period 30-40days in OLR anomalies are found to modulate (with a fluctuation of 1-2ppm) mid-tropospheric CO2. Analysis of seasonal anomalies in CO2 over four different regions (northern, southern, western and eastern) of India is also being investigated. The regional variability of CO2 in northern region show marginal larger values suggesting more anthropogenic activities especially during late winter., Jun. 2019, 128, 92, Scientific journal
  • Refereed, Agronomy, MDPI, Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India, A. Oo; S. Sudo; K. Inubushi; U. Chellappan; A. Yamamoto; K. Ono; M. Mano; S. Hayashida; V.Koothan; T. Osawa; Y. Terao; J. Palanisamy; E. Palanisamy; R. Venkatachalam, Water-intensive systems of rice cultivation are facing major challenges to increase rice grain yield under conditions of water scarcity while also reducing greenhouse gas (GHG) emissions. The adoption of effective irrigation strategies in the paddy rice system is one of the most promising options for mitigating GHG emissions while maintaining high crop yields. To evaluate the effect of different alternate wetting and drying (AWD) irrigation strategies on GHG emissions from paddy rice in dry and wet seasons, a field experiment was conducted at the Tamil Nadu Rice Research Institute (TRRI), Aduthurai, Tamil Nadu, India. Four irrigation treatments were included: One-AWD (one early drying period), Two-AWD (two early drying periods), Full-AWD (wetting and drying cycles throughout the rice season), and CF (continuous flooding). Different rice varieties were also tested in the experiment. In this study, we emphasized one factor (irrigation effect) that affects the dependent variable. The results show that early AWD treatments reduced methane (CH4) emissions by 35.7 to 51.5% in dry season and 18.5 to 20.1% in wet season, while full-AWD practice reduced CH4 emissions by 52.8 to 61.4% compared with CF. Full-AWD in dry season not only significantly reduced CH4 emission during that season, it also resulted in the decline of the early season emission in the succeeding wet season. Global warming potential (GWP) and yield-scaled GWP were reduced by early or full season AWD in both rice seasons. The GWP value from nitrous oxide (N2O) was relatively low compared to that from CH4 in both rice seasons. Rice yield was not affected by irrigation treatments although varietal differences in grain and straw yields were observed in both rice seasons. This study demonstrated that early season water managements are also effective in reducing CH4 and total GHG emissions without affecting rice yield., Sep. 2018, 8, 10, 202, Scientific journal
  • Refereed, Atmospheric Environment, Elsevier Ltd, Seasonality of the lower tropospheric ozone over China observed by the Ozone Monitoring Instrument, Sachiko Hayashida; Mizuo Kajino; Makoto Deushi; Tsuyoshi Thomas Sekiyama; Xiong Liu, We analyzed the ozone (O3) profile product (PROFOZ) derived from Ozone Monitoring Instrument(OMI) ultraviolet (UV) spectra to reveal spatial and temporal variations in O3 distributions over China. Although discriminating vertical O3 in the lower troposphere is a challenge for satellite-borne measurements, previous research has confirmed the reliability of the lowermost layer O3 of the PROFOZ product, corresponding to 0–3 km, under the high O3 condition over China by comparison with the airborne measurements. In the present study, we focus on the seasonal variation of O3 obtained in the lowermost layer over China. We track the O3 enhancement under polluted conditions by using the ozone anomaly (ΔO3), defined as the difference between the retrieval values and a priori values, because our focus is the temporally high O3 level compared with the background level. We divide the 25–40° N and 100–135° E region into clusters according to the similarity of the seasonal variation in ΔO3 at the lowermost layer corresponding to approximately 0–3 km in altitude. Using this cluster analysis, we distinguish the areas in which ΔO3 has outstanding seasonality with high values in summer, particularly in June, and low values in winter over the North China Plain and Sichuan basin. The areas with these anomalous ΔO3 values correspond to high NO2 emission areas. We compare the results with model simulations from the Meteorological Research Institute–Chemistry Climate Model (MRI-CCM2) and meteorological data. The areas showing outstanding seasonality also correspond to those of high chemical production rates in June. Along the coastal area, ΔO3 values tend to drop to negative in August, which can be attributed to the inflow of clean oceanic air to inland regions. The results presented here again demonstrate the reliability of the lower tropospheric O3 data from the OMI PROFOZ product and suggest good capability of UV satellite sensors for monitoring O3 pollution that will be launched in the near future., 01 Jul. 2018, 184, 244, 253, Scientific journal
  • Refereed, Atmospheric Measurement Techniques, Copernicus GmbH, Vertical profile of tropospheric ozone derived from synergetic retrieval using three different wavelength ranges, UV, IR, and microwave: Sensitivity study for satellite observation, Tomohiro O. Sato; Takao M. Sato; Hideo Sagawa; Katsuyuki Noguchi; Naoko Saitoh; Hitoshi Irie; Kazuyuki Kita; Mona E. Mahani; Koji Zettsu; Ryoichi Imasu; Sachiko Hayashida; Yasuko Kasai, We performed a feasibility study of constraining the vertical profile of the tropospheric ozone by using a synergetic retrieval method on multiple spectra, i.e., ultraviolet (UV), thermal infrared (TIR), and microwave (MW) ranges, measured from space. This work provides, for the first time, a quantitative evaluation of the retrieval sensitivity of the tropospheric ozone by adding the MW measurement to the UV and TIR measurements. Two observation points in East Asia (one in an urban area and one in an ocean area) and two observation times (one during summer and one during winter) were assumed. Geometry of line of sight was nadir down-looking for the UV and TIR measurements, and limb sounding for the MW measurement. The retrieval sensitivities of the ozone profiles in the upper troposphere (UT), middle troposphere (MT), and lowermost troposphere (LMT) were estimated using the degree of freedom for signal (DFS), the pressure of maximum sensitivity, reduction rate of error from the a priori error, and the averaging kernel matrix, derived based on the optimal estimation method. The measurement noise levels were assumed to be the same as those for currently available instruments. The weighting functions for the UV, TIR, and MW ranges were calculated using the SCIATRAN radiative transfer model, the Line-By-Line Radiative Transfer Model (LBLRTM), and the Advanced Model for Atmospheric Terahertz Radiation Analysis and Simulation (AMATERASU), respectively. The DFS value was increased by approximately 96, 23, and 30ĝ ̄% by adding the MW measurements to the combination of UV and TIR measurements in the UT, MT, and LMT regions, respectively. The MW measurement increased the DFS value of the LMT ozone nevertheless, the MW measurement alone has no sensitivity to the LMT ozone. The pressure of maximum sensitivity value for the LMT ozone was also increased by adding the MW measurement. These findings indicate that better information on LMT ozone can be obtained by adding constraints on the UT and MT ozone from the MW measurement. The results of this study are applicable to the upcoming air-quality monitoring missions, APOLLO, GMAP-Asia, and uvSCOPE., 26 Mar. 2018, 11, 3, 1653, 1668, Scientific journal
  • Refereed, Land‐Atmospheric Applications in South and Southerast Asia, Book Series: Springer Remote Sensing/Photogrammetry, Study of lower tropospheric ozone over central and eastern China: Comparison of satellite observation with model simulation, S. Hayashida; S. Kayaba; M. Deushi; K. Yamaji; A. Ono; M. Kajino; T. T. Sekiyama; T. Maki; X. Liu, 予定より2年遅れて発行された, Mar. 2018, 255, 275
  • Refereed, Journal of Applied Remote Sensing, SPIE, Ground-based measurement of column-averaged mixing ratios of methane and carbon dioxide in the Sichuan Basin of China by a desktop optical spectrum analyzer, Xiu-Chun Qin; Tomoki Nakayama; Yutaka Matsumi; Masahiro Kawasaki; Akiko Ono; Sachiko Hayashida; Ryoichi Imasu; Li-Ping Lei; Isao Murata; Takahiro Kuroki; Masafumi Ohashi, Remote sensing of the atmospheric greenhouse gases, methane (CH4) and carbon dioxide (CO2), contributes to the understanding of global warming and climate change. A portable ground-based instrument consisting of a commercially available desktop optical spectrum analyzer and a small sun tracker has been applied to measure the column densities of atmospheric CH4 and CO2 at Yanting observation station in a mountainous paddy field of the Sichuan Basin from September to November 2013. The column-averaged dry-air molar mixing ratios, XCH4/XCO2, are compared with those retrieved by satellite observations in the Sichuan Basin and by ground-based network observations in the same latitude zone as the Yanting observation station., 01 Jan. 2018, 12, 1, 12002, Scientific journal
  • Refereed, AGRICULTURE ECOSYSTEMS & ENVIRONMENT, ELSEVIER SCIENCE BV, Methane and nitrous oxide emissions from conventional and modified rice cultivation systems in South India, Aung Zaw Oo; Shigeto Sudo; Kazuyuki Inubushi; Masayoshi Mano; Akinori Yamamoto; Keitsuke Ono; Takeshi Osawa; Sachiko Hayashida; Prabir K. Patra; Yukio Terao; P. Elayakumar; K. Vanitha; C. Umamageswari; P. Jothimani; V. Ravi, Rice (Oryza sativa L.) production is facing major challenges, including scarcity of irrigation water and ongoing climate change. Modifications of the current cropping techniques could increase yield, save water, and mitigate greenhouse gas emission. We investigated the effect of planting methods (young seedlings, wide spacing with alternate wetting and drying irrigation [YW-AWD], old seedlings, narrow spacing with continuous flooding [ON-CF], and in-between the two planting methods [IB-AWD]) and rice varieties on methane (CH4) and (N2O) emissions during two crop seasons. The results show that CH4 emission, averaged over rice varieties, reduced for YW-AWD by 41% and 24%, compared with ON-CF, while the reduction in emission for the IB-AWD method was 48% and 26% in summer (dry) and monsoon (wet) season, respectively. However, an increase in N2O emission was observed for YW-AWD and IB-AWD methods in both seasons. There was no significant difference in CH4 and N2O emissions between the tested varieties. The total water saving under YW-AWD and IB-AWD was 47.5% and 49.3% in summer, and 79.4% and 79.8% in monsoon season, respectively, compared with ON-CF. The grain yields of YW-AWD and IB-AWD were comparable with the yield of ON-CF in both seasons. The CO2-eq emission and yield-scaled CO2-eq emission from YW-AWD and IB-AWD were significantly lower compared with ON-CF due to low CH4 emission, while maintaining similar rice yields. This study showed that the YW-AWD and IBAWD methods are effective in reducing CO2-eq emission and saving irrigation water, while maintaining the rice yield., Jan. 2018, 252, 148, 158, Scientific journal
  • Refereed, ATMOSPHERIC CHEMISTRY AND PHYSICS, COPERNICUS GESELLSCHAFT MBH, What controls the seasonal cycle of columnar methane observed by GOSAT over different regions in India?, Naveen Chandra; Sachiko Hayashida; Tazu Saeki; Prabir K. Patra, Methane (CH4) is one of the most important shortlived climate forcers for its critical roles in greenhouse warming and air pollution chemistry in the troposphere, and the water vapor budget in the stratosphere. It is estimated that up to about 8% of global CH4 emissions occur from South Asia, covering less than 1% of the global land. With the availability of satellite observations from space, variability in CH4 has been captured for most parts of the global land with major emissions, which were otherwise not covered by the surface observation network. The satellite observation of the columnar dry-air mole fractions of methane (X CH4) is an integrated measure of CH4 densities at all altitudes from the surface to the top of the atmosphere. Here, we present an analysis of X CH4 variability over different parts of India and the surrounding cleaner oceanic regions as measured by the Greenhouse gases Observation SATellite (GOSAT) and simulated by an atmospheric chemistrytransport model (ACTM). Distinct seasonal variations of X CH4 have been observed over the northern (north of 15 degrees N) and southern (south of 15 degrees N) parts of India, corresponding to the peak during the southwestern monsoon (July-September) and early autumn (October-December) seasons, respectively. Analysis of the transport, emission, and chemistry contributions to X CH4 using ACTM suggests that a distinct X CH4 seasonal cycle over northern and southern regions of India is governed by both the heterogeneous distributions of surface emissions and a contribution of the partial CH4 column in the upper troposphere. Over most of the northern Indian Gangetic Plain regions, up to 40% of the peak-to-trough amplitude during the southwestern (SW) monsoon season is attributed to the lower troposphere (similar to 1000-600 hPa), and similar to 40% to uplifted high-CH4 air masses in the upper troposphere (similar to 600-200 hPa). In contrast, the X CH4 seasonal enhancement over semi-arid western India is attributed mainly (similar to 70 %) to the upper troposphere. The lower tropospheric region contributes up to 60% in the X CH4 seasonal enhancement over the Southern Peninsula and oceanic region. These differences arise due to the complex atmospheric transport mechanisms caused by the seasonally varying monsoon. The CH4 enriched air mass is uplifted from a high-emission region of the Gangetic Plain by the SW monsoon circulation and deep cumulus convection and then confined by anticyclonic wind in the upper tropospheric heights (similar to 200 hPa). The anticyclonic confinement of surface emission over a wider South Asia region leads to a strong contribution of the upper troposphere in the formation of the X CH4 peak over northern India, including the semi-arid regions with extremely low CH4 emissions. Based on this analysis, we suggest that a link between surface emissions and higher levels of X CH4 is not always valid over Asian monsoon regions, although there is often a fair correlation between surface emissions and X CH4. The overall validity of ACTM simulation for capturing GOSAT observed seasonal and spatial X CH4 variability will allow us to perform inverse modeling of X CH4 emissions in the future using X CH4 data., Oct. 2017, 17, 20, 12633, 12643, Scientific journal
  • Refereed, Proceedings of the 36th Asian Conference on Remote Sensing (ACRS),Manilla, Phillippines, Oct. 20, 2015., Estimation of Forest Canopy Height Using MODIS Shadow Index, A Ono; S Hayashida; W Takeuchi, A variety of vegetation indices have been developed for remote sensing analyses of vegetated areas. However, most of those indices perform poorly when trying to understand the vegetation type, canopy structure, and canopy height of a forested area. Better understanding of the three-dimensional standing forest structure is crucial for obtaining accurate estimates of the above ground biomass. Visible and near-infrared bands are highly affected by casted shadows, and the effects largely depend on the vegetation type, grow-up conditions of the plants, seasonality, and other related factors. Those phenomena can be revealed via in-situ measurements, however, more validation and tests are required to guarantee the performance of satellite-based measurements. In this sense, it would be indispensable to devise a method to evaluate the casted shadow effects on satellite-based shadow index (SI) measurements to improve above ground biomass estimation accuracies over the global scale. In this study, we evaluated the SI and the relationship between the SI and forest canopy height (FCH) at the global scale. First, Terra MODIS surface reflectance daily product (MOD09CMG) data were collected, and the SI and normalized difference vegetation index (NDVI) were estimated over the global scale. Second, a global FCH dataset was derived from Simard et al. (2011) and the relationships among FCH, SI, and NDVI were investigated based on 17 land cover types. The findings showed that SI values had a clear linear relationship with FCH values. Hence, the SI may be very useful in future studies., Oct. 2015, International conference proceedings
  • Refereed, SOLA, The Meteorological Society of Japan, Comparison of GOSAT SWIR and Aircraft Measurements of XCH4 over West Siberia, Akiko Ono; Sachiko Hayashida; Takafumi Sugita; Toshinobu Machida; Motoki Sasakawa; Mikhail Arshinov, We investigated the validity of column-averaged dry air mole fractions of methane (XCH4: V02.21) retrieved from shortwave infrared (SWIR) spectra obtained by Greenhouse gases Observing SATellite (GOSAT) over Siberia, which is known as a major source area of methane (CH4). We compared the GOSAT XCH4 dataset with aircraft measurements of XCH4 that have been collected in Novosibirsk and Surgut, West Siberia since the 1990s. The average difference between the GOSAT XCH4 and aircraft-based XCH4 was -1.0 +/- 22.0 ppb in Novosibirsk and -0.4 +/- 14.8 ppb in Surgut when we selected appropriate data pairs. These results indicate that GOSAT XCH4 data obtained over West Siberia is consistent with aircraft measurements and assure the reliability of the GOSAT XCH4 product for scientific analysis., 2015, 11, 160, 164, Scientific journal
  • Refereed, 写真測量とリモートセンシング, Japan Society of Photogrammetry and Remote Sensing, デジタルカメラを用いた落葉針葉樹カラマツ林の植生解析, 小野朗子; 林田佐智子; 小野厚夫, To understand global climate change, it is important to monitor the temporal and spatial distributions of vegetation. Digital cameras are relatively inexpensive to operate, and have small labor requirements, allowing the detection of subtle seasonal variation at high spatial resolution. Recent studies have reported camera-based indices that are calculated from the digital values of blue, green and red are useful to grasp the seasonal variation of vegetation phenology such as leaf expansion or fall. To examine this possibility, we investigated the characteristics of seasonal variation of camera-based indices for Larix kaempferi. Our camera adjusts the white balance automatically so that the 3 color components are modified by the lighting conditions. By normalizing respective components with their arithmetic mean, the dispersion becomes smaller than the raw digital value. However, the influence of solar radiation remains. We surveyed the relationship between the 3 components and solar radiation, and developed new vegetation indices independent of solar radiation by utilizing the normalized components. These indices are very useful for the analysis of seasonal change of Larix kaempferi., Jan. 2015, 54, 1, 20, 31, Scientific journal
  • Refereed, ATMOSPHERIC CHEMISTRY AND PHYSICS, COPERNICUS GESELLSCHAFT MBH, Observation of ozone enhancement in the lower troposphere over East Asia from a space-borne ultraviolet spectrometer, S. Hayashida; X. Liu; A. Ono; K. Yang; K. Chance, We report observations from space using ultraviolet (UV) radiance for significant enhancement of ozone in the lower troposphere over central and eastern China (CEC). The recent retrieval products of the Ozone Monitoring Instrument (OMI) onboard the Earth Observing System (EOS) Aura satellite revealed the spatial and temporal variation of ozone distributions in multiple layers in the troposphere. We compared the OMI-derived ozone over Beijing with airborne measurements by the Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) program. The correlation between OMI and MOZAIC ozone in the lower troposphere was reasonable, which assured the reliability of OMI ozone retrievals in the lower troposphere under enhanced ozone conditions. The ozone enhancement was clearly observed over CEC, with Shandong Province as its center, and was most notable in June in any given year. Similar seasonal variations were observed throughout the 9-year OMI measurement period of 2005 to 2013. A considerable part of this ozone enhancement could be attributed to the emissions of ozone precursors from industrial activities and automobiles, and possibly from open crop residue burning (OCRB) after the winter wheat harvest. The ozone distribution presented in this study is also consistent with some model studies. The lower tropospheric ozone distribution is first shown from OMI retrieval in this study, and the results will be useful in clarifying any unknown factors that influence ozone distribution by comparison with model simulations., 2015, 15, 17, 9865, 9881, Scientific journal
  • Refereed, REMOTE SENSING OF ENVIRONMENT, ELSEVIER SCIENCE INC, Methane concentrations over Monsoon Asia as observed by SCIAMACHY: Signals of methane emission from rice cultivation, S. Hayashida; A. Ono; S. Yoshizaki; C. Frankenberg; W. Takeuchi; X. Yan, We have analyzed the column-averaged CH4 concentration (xCH(4)) using scanning imaging absorption spectrometer for atmospheric chartography (SCIAMACHY) and compared the data with the bottom-up emission inventory data sets and other satellite-derived indices such as the land-surface water coverge (LSWC) and the normalized difference vegetation index (NDVI). The geographical distribution of high CH4 values corresponds to strong emissions from regions where rice is cultivated, as indicated in the inventory maps. The Pearson's correlation coefficients (r) between xCH(4) and the rice emission inventory data are observed to be greater than similar to 0.6 over typical rice fields, with outstanding r-values of similar to 0.8 in the Ganges Basin, Myanmar, and Thailand. This suggests that the emission of CH4 from rice cultivation mainly controls the seasonality of the CH4 concentration over such regions. The correlation between xCH(4) and LSWC and NDVI is also as large as 0.6. In Southeast Asia, the r-values of xCH4 with bottom-up inventory data that includes all categories are not as high as those with the emission, as estimated from the rice category only. This is indicative of the relative importance of rice emissions among all other emission categories in Southeast Asia. (C) 2013 Elsevier Inc. All rights reserved., Dec. 2013, 139, 246, 256, Scientific journal
  • Refereed, ATMOSPHERIC MEASUREMENT TECHNIQUES, COPERNICUS GESELLSCHAFT MBH, HCl and ClO profiles inside the Antarctic vortex as observed by SMILES in November 2009: comparisons with MLS and ACE-FTS instruments, T. Sugita; Y. Kasai; Y. Terao; S. Hayashida; G. L. Manney; W. H. Daffer; H. Sagawa; M. Suzuki; M. Shiotani; K. A. Walker; C. D. Boone; P. F. Bernath, We present vertical profiles of hydrogen chloride (HCl) and chlorine monoxide (ClO) as observed by the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) on the International Space Station (ISS) inside the Antarctic vortex on 19-24 November 2009. The SMILES HCl value reveals 2.8-3.1 ppbv between 450K and 500K levels in potential temperature (PT). The high value of HCl is highlighted since it is suggested that HCl is a main component of the total inorganic chlorine (Cl-y), defined as Cly similar or equal to HCl + ClO + chlorine nitrate (ClONO2), inside the Antarctic vortex in spring, owing to low ozone values. To confirm the quality of two SMILES level 2 (L2) data products provided by the Japan Aerospace Exploration Agency (JAXA) and Japan's National Institute of Information and Communications Technology (NICT), vis-a-vis the partitioning of Cly, comparisons are made using other satellite data from the Aura Microwave Limb Sounder (MLS) and Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS). HCl values from the SMILES NICT L2 product agree to within 10% (0.3 ppbv) with the MLS HCl data between 450 and 575K levels in PT and with the ACE-FTS HCl data between 425 and 575 K. The SMILES JAXA L2 product is 10 to 20% (0.2-0.5 ppbv) lower than that from MLS between 400 and 700K and from ACE-FTS between 500 and 700 K. For ClO in daytime, the difference between SMILES (JAXA and NICT) and MLS is less than +/- 0.05 ppbv (100 %) between 500K and 650K with the ClO values less than 0.2 ppbv. ClONO2 values as measured by ACE-FTS also reveal 0.2 ppbv at 475-500K level, resulting in the HCl/Cly ratios of 0.91-0.95. The HCl/Cly ratios derived from each retrieval agree to within -5 to 8% with regard to their averages. The high HCl values and HCl/Cly ratios observed by the three instruments in the lower stratospheric Antarctic vortex are consistent with previous observations in late Austral spring., 2013, 6, 11, 3099, 3113, Scientific journal
  • Refereed, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, METEOROLOGICAL SOC JAPAN, Enhanced Mid-Latitude Tropospheric Column Ozone over East Asia: Coupled Effects of Stratospheric Ozone Intrusion and Anthropogenic Sources, Aya Nakatani; Sayako Kondo; Sachiko Hayashida; Tatsuya Nagashima; Kengo Sudo; Xiong Liu; Kelly Chance; Isamu Hirota, We analyze tropospheric column ozone (TCO) data observed by satellite instruments over East Asia for 15 years (from 1995 to 2009), and investigate the relationship between enhanced TCO (E-TCO) and ozone intrusion from the stratosphere near the subtropical jet (STJ). A belt of E-TCO is observed at mid-latitude over East Asia throughout the year; the belt is located at latitudes approximately equal to that of the STJ on seasonal, monthly, and daily timescales. The observed results are compared with a tagged tracer simulation by using a global chemical transport model. The simulation for East Asia indicates that the contribution from tropospheric origin to the enhancement of TCO is comparable to that from stratospheric origin at latitudes close to the STJ, resulting in the high correlation of the E-TCO belt and the STJ. The two origins of ozone cannot be differentiated in the tropospheric column ozone observed by a satellite, especially over East Asia where the anthropogenic source regions of ozone precursors are situated close to the latitudes of the STJ. Some occasional data, however, indicate split origins on a daily timescale, suggesting that the two origins really contribute to the enhancement of TCO. Our results strongly suggests an urgent need to develop a new satellite sensor and/or a new algorithm to distinguish boundary layer ozone from free tropospheric ozone in order to promote our understanding of atmospheric pollution over East Asia., Apr. 2012, 90, 2, 207, 222, Scientific journal
  • Refereed, REMOTE SENSING OF THE ATMOSPHERE, CLOUDS, AND PRECIPITATION IV, SPIE-INT SOC OPTICAL ENGINEERING, HCl/Cly ratios just before the breakup of the Antarctic vortex as observed by SMILES/MLS/ACE-FTS, T. Sugita; Y. Kasai; Y. Terao; S. Hayashida; G. L. Manney; W. H. Daffer; H. Sagawa; M. Suzuki; M. Shiotani, The International Space Station/Japanese Exposure Module (ISS/JEM) borne instrument, the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES), has successfully measured chemical species in the middle atmosphere between October 2009 and April 2010. We focus on inorganic chlorine species measured inside the late spring Antarctic vortex, when hydrogen chloride (HCl) was a main component of the total inorganic chlorine (Cly). Comparisons with other satellite instruments, the Aura Microwave Limb Sounder (MLS) and Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS), are also presented to show the SMILES HCl and chlorine monoxide (ClO) data quality., 2012, 8523, 8523, International conference proceedings
  • Refereed, SOLA, The Meteorological Society of Japan, Comparisons between XCH4 from GOSAT Shortwave and Thermal Infrared Spectra and Aircraft CH4 Measurements over Guam, N. Saitoh; M. Touno; S. Hayashida; R. Imasu; K. Shiomi; T. Yokota; Y. Yoshida; T. Machida; H. Matsueda; Y. Sawa, The Thermal and Near-infrared Sensor for Carbon Observation Fourier Transform Spectrometer (TANSO-FTS) on board the Greenhouse Gases Observing Satellite (GOSAT) simultaneously observes column abundances and profiles of CH4 in the same field of view, from the shortwave infrared (SWIR) and thermal infrared (TIR) bands, respectively. We compared CH4 column-averaged dry-air mole fractions (XCH4) derived from the SWIR band, XCH4 calculated from the TIR CH4 profiles, and XCH4 calculated from the CH4 data obtained over Guam airport by commercial aircraft. The difference between the SWIR-XCH4 and aircraft XCH4 values (SWIR - aircraft) was -8 ppbv on average, and the 1 sigma standard deviation was 10 ppbv. The average difference between the TIR-XCH4 and aircraft XCH4 values (TIR - aircraft) was -5 ppbv, and the 1s standard deviation was 15 ppbv. The ranges of uncertainties in the calculated aircraft XCH4 values were estimated to be 9, 3, and 2 ppbv, which came from stratospheric CH4 assumption, tropopause height determination, and meteorological dataset used, respectively. Both the SWIR- and TIR-XCH4 values agreed within 0.5% of the aircraft XCH4 values, demonstrating that the GOSAT CH4 data are both valid and consistent with each other over the tropical ocean., 2012, 8, 8, 145, 149, Scientific journal
  • Refereed, ADVANCES IN SPACE RESEARCH, ELSEVIER SCI LTD, A feasibility study for the detection of the diurnal variation of tropospheric NO2 over Tokyo from a geostationary orbit, Katsuyuki Noguchi; Andreas Richter; Heinrich Bovensmann; Andreas Hilboll; John P. Burrows; Hitoshi Irie; Sachiko Hayashida; Yu Morino, We have conducted a feasibility study for the geostationary monitoring of the diurnal variation of tropospheric NO2 over Tokyo. Using NO2 fields from a chemical transport model, synthetic spectra were created by a radiative transfer model, SCIATRAN, for summer and winter cases. We then performed a Differential Optical Absorption Spectroscopy (DOAS) analysis to retrieve NO2 slant column densities (SCDs), and after converting SCDs into vertical column densities (VCDs), we estimated the precision of the retrieved VCDs. The simulation showed that signal-to-noise ratio (SNR) >= 500 is needed to detect the diurnal variation and that SNR >= 1000 is needed to observe the local minimum occurring in the early afternoon (LT13-14) in summer. In winter, the detection of the diurnal variation during LT08-15 needs SNR >= 500, and SNR >= 1000 is needed if early morning (LT07) and early evening (LT16) are included. The currently discussed sensor specification for the Japanese geostationary satellite project, GMAP-Asia, which has a horizontal resolution of 10 km and a temporal resolution of 1hr, has demonstrated the performance of a precision of several percent, which is approximately corresponding to SNR = 1000-2000 during daytime and SNR >= 500 in the morning and evening. We also discuss possible biases caused by the temperature dependence of the absorption cross section utilized in the DOAS retrieval, and the effect of uncertainties of surface albedo and clouds on the estimation of precisions. (C) 2011 COSPAR. Published by Elsevier Ltd. All rights reserved., Nov. 2011, 48, 9, 1551, 1564, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, On Global Methane Observation from Space by SCIAMACHY, Ariyama; Y. S. Etoh; K. Noguchi; S. Hayashida, Aug. 2009, 56, 8, 603, 611, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Seasonal cycles of Stratospheric Aerosol and Gas Experiment II near-background aerosol in the lower stratosphere, Masanori Niwano; Sachiko Hayashida; Hideharu Akiyoshi; Masaaki Takahashi, Extinction data from the Stratospheric Aerosol and Gas Experiment (SAGE) II in the lower stratosphere were analyzed for seasonal cycles in the near-background levels of stratospheric aerosol. The data analyzed were the extinction coefficient at 0.525 mu m (beta(0.525)) and the extinction ratio at 0.525 mu m (E-0.525) on the basis of climatological zonal monthly mean for the years 1998-2004. Distinct seasonal cycles were found for beta(0.525) at 35-15 degrees S above 28 km (region A) and at 20 degrees S-30 degrees N from 16 to 20.5 km (region B). In the A region, the seasonal cycle of E-0.525 was characterized by a maximum in local fall and can be explained by the ascent of mean meridional circulation in local summer and descent in local winter. In the B region, the seasonal cycles of E-0.525 were characterized by a maximum in October-January, which can be interpreted by meridional transport and mixing. The amplitude of the seasonal cycles for E-0.525 exhibited asymmetry between the Northern Hemisphere (NH) and the Southern Hemisphere (SH); the amplitudes at latitudes of 20-30 degrees were larger in the SH than in the NH above 29 km, whereas they were larger in the NH than in the SH below 18 km. Comparison of the distribution of E-0.525 with that of SAGE II water vapor suggested that the E-0.525 distribution is controlled by the stratospheric circulation and troposphere-originated gases. One difference between E-0.525 and water vapor was found in the E-0.525 maximum that appears over the winter subtropics. The E-0.525 maximum can be attributed to the dominance of temperature and microphysical effects compared to transport effects, whereas the water vapor distribution can be attributed to transport effects. Another difference is that an upward propagation of the seasonal cycle of E-0.525 at 5 degrees S-30 degrees N disappeared near 23 km. This difference is explained by the fact that the chemical and microphysical processes of aerosol formation become significant above 23 km., Jul. 2009, 114, 14, Scientific journal
  • Refereed, Journal of the Remote Sensing Society of Japan, The Remote Sensing Society of Japan, Comparison of tropospheric NO2 observations by GOME and the air-quality monitoring network around Tokyo, Japan, K. Noguchi; H. Itoh; T. Shibasaki; S. Hayashida; I. Uno; T. Ohara; A. Richter; J. P. Burrows, We compared satellite and ground-based observations of tropospheric NO2 to test whether satellite observations could successfully detect the behavior of tropospheric NO2. The satellite data were tropospheric NO2 vertical column density (VCD) derived from Global Ozone Monitoring Experiment (GOME) spectrometer measurements (hereafter GOME-NO2), and the ground-based data were surface NO2 volume mixing ratio (VMR) observed by the network of air-quality monitoring stations in Japan. The analysis was performed in the Tokyo region (the Kanto Plain) from January 1996 to June 2003. A strong correlation between GOME-NO2 and the surface VMR was observed, with the two quantities showing similar seasonal variation of maximum in winter, minimum in summer. This provided initial evidence that GOME was successful in observing the behavior of NO2 near the surface level in the Tokyo region. We performed a more rigorous comparison in which the surface NO2 VMR was scaled to the tropospheric VCD using vertical NO2 VMR profiles, which were calculated using the chemical transport model CMAQ/REAS. This second comparison indicated that the GOME observations represent the behavior of NO2 more closely at the relatively unpolluted stations than at the highly polluted stations in the network of air-quality monitoring. This tendency was thought to result from the horizontal heterogeneity within a GOME footprint. Comparison with a previous study in northern Italy showed that the GOME-NO2 measurements over Tokyo tended to be smaller than those over northern Italy. Because Tokyo is located in a coastal land region with a gulf, areas of ocean intruding into the GOME pixels could lower the observed GOME-NO2. The pollution in Tokyo is so spatially concentrated that the rural regions contaminating GOME pixels could also reduce the observed NO2 concentration from its true spatially resolved value., Apr. 2009, 29, 2, 398, 409, Scientific journal
  • Refereed, SOLA, The Meteorological Society of Japan, Spatiotemporal Variation in Tropospheric Column Ozone over East Asia Observed by GOME and Ozonesondes, S. Hayashida; N. Urita; K. Noguchi; X. Liu; K. Chance, We analyzed tropospheric column ozone (TCO) observed by the GOME-1 (Global Ozone Monitoring Experiment; European Space Agency, 1995) and ozonesondes to determine the spatiotemporal variation in TCO over East Asia from 1996 to 2003. An enhanced TCO belt (E-TCO belt) was observed at approximately 35 degrees N throughout the year. The E-TCO belt moved northward from winter to summer and southward from summer to winter, strongly suggesting connection with the seasonal variation of meteorological conditions. The large enhancement of TCO found over central China in summer suggests that there is significant outflow of ozone from that region. This study presents the first satellite-derived comprehensive picture of the TCO spatiotemporal variation over East Asia, which has not been obtained from limited ground-based measurements., 2008, 4, 117, 120, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, 「成層圏過程とその気候影響(SPARC)」計画の活動紹介, 林田 佐智子; 小寺 邦彦; 秋吉 英治; 今村 隆史; 岩崎 俊樹; 笠井 康子; 北 和之; 小池 真; 佐藤 薫; 塩谷 雅人; 柴田 清孝; 津田 敏隆; 廣岡 俊彦; 藤原 正智; 村山 泰啓; 余田 成男; 堤 雅基, 30 Nov. 2007, 54, 11, 979, 982, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Temporal evolution of ClONO2 observed with Improved Limb Atmospheric Spectrometer (ILAS) during Arctic late winter and early spring in 1997, S. Hayashida; T. Sugita; N. Ikeda; Y. Toda; H. Irie, [1] The temporal evolution of the volume mixing ratio (VMR) of chlorine nitrate (ClONO2) observed with the Improved Limb Atmospheric Spectrometer (ILAS) is described for the Arctic late winter and early spring of 1997. The temporal development of ClONO2 on the 475-K isentropic surface during winter and spring is characterized by high variability in the VMR with seasonal enhancement to about 2 ppbv. In February, depleted values of ClONO2 were also observed; some of these low values are attributable to denitrification or to occurrence of polar stratospheric clouds. After mid-March, when ClONO2 reached peak values, ClONO2 decreased and showed much less variability. Comparison of ClONO2 with HCl observed by the Halogen Occultation Experiment/Upper Atmospheric Research Satellite (HALOE/UARS) suggests a conversion of ClONO2 into HCl earlier at high altitudes than at lower altitudes. During the period a marked enhancement in NO2 was observed with a reduction in ClONO2 in the vortex, providing the first evidence from space of the NO2 time evolution in conjunction with ClONO2. Continuous measurements of ClONO2 through winter and spring over the Arctic are limited to date. The ILAS measurements reported in this paper will be useful for reanalyzing the seasonal variation of chlorine activation/deactivation processes in the Arctic lower stratosphere that control the degree of ozone destruction., Jul. 2007, 112, 14, Scientific journal
  • Refereed, SOLA, The Meteorological Society of Japan, Validation and Comparison of Tropospheric Column Ozone Derived from GOME Measurements with Ozonesondes over Japan, Katsuyuki Noguchi; Naomi Urita; Sachiko Hayashida; Xiong Liu; Kelly Chance, Tropospheric column ozone derived from Global Ozone Monitoring Experiment (GOME) measurements (GOME-O(3)) was validated using operational ozonesonde measurements over Japan and compared with Tropospheric Ozone Residual (TOR) derived from Total Ozone Mapping Spectrometer and Solar Backscatter Ultraviolet measurements. The GOME-O(3) validation showed positive biases with a magnitude of less than 3 DU (similar to 10%) and random errors of 5-9 DU (similar to 15-30%) at collocated sonde stations. GOME-O(3) showed better agreement with ozonesonde measurements over Japan than TOR did. The direct comparison between GOME-O(3) and TOR showed the underestimation of TOR during winter and spring in the southern part of Japan (around 30 degrees N)., 2007, 3, 41, 44, Scientific journal
  • Refereed, ATMOSPHERIC CHEMISTRY AND PHYSICS, COPERNICUS GESELLSCHAFT MBH, Systematic analysis of interannual and seasonal variations of model-simulated tropospheric NO2 in Asia and comparison with GOME-satellite data, I. Uno; Y. He; T. Ohara; K. Yamaji; J. -I. Kurokawa; M. Katayama; Z. Wang; K. Noguchi; S. Hayashida; A. Richter; J. P. Burrows, Systematic analyses of interannual and seasonal variations of tropospheric NO2 vertical column densities (VCDs) based on GOME satellite data and the regional scale chemical transport model (CTM), Community Multi-scale Air Quality (CMAQ), are presented for the atmosphere over eastern Asia between 1996 and June 2003. A newly developed year-by-year emission inventory (REAS) was used in CMAQ. The horizontal distribution of annual averaged GOME NO2 VCDs generally agrees well with the CMAQ results. However, CMAQ/REAS results underestimate the GOME retrievals with factors of 2-4 over polluted industrial regions such as Central East China (CEC), a major part of Korea, Hong Kong, and central and western Japan. The most probable reasons for the underestimation typically over the CEC are accuracy of the basic energy statistic data, emission factors, and socio-economic data used for construction of emission inventory. For the Japan region, GOME and CMAQ NO2 data show reasonable agreement with respect to interannual variation and show no clear increasing trend. For CEC, GOME and CMAQ NO2 data indicate a very rapid increasing trend from 2000. Analyses of the seasonal cycle of NO2 VCDs show that GOME data have larger dips than CMAQ NO2 during February-April and September-November. Sensitivity experiments with fixed emission intensity reveal that the detection of emission trends from satellite in fall or winter has a larger error caused by the variability of meteorology. Examination during summer time and annual averaged NO2 VCDs are robust with respect to variability of meteorology and are therefore more suitable for analyses of emission trends. Analysis of recent trends of annual emissions in China shows that the increasing trends of 1996-1998 and 2000-2002 for GOME and CMAQ/REAS show good agreement, but the rate of increase by GOME is approximately 10-11% yr(-1) after 2000; it is slightly steeper than CMAQ/REAS (8-9% yr(-1)). The greatest difference was apparent between the years 1998 and 2000: CMAQ/REAS only shows a few percentage points of increase, whereas GOME gives a greater than 8% yr(-1) increase. The exact reason remains unclear, but the most likely explanation is that the emission trend based on the Chinese emission related statistics underestimates the rapid growth of emissions., 2007, 7, 6, 1671, 1681, Scientific journal
  • Refereed, 情報処理学会論文誌:数理モデル化と応用, Information Processing Society of Japan, Support Vector Machine を用いた極成層圏雲表面積の推定, 池田奈生; 芦田尚美; 林田佐智子, 2007, 48, SIG6(TOM17), Scientific journal
  • Refereed, SOLA, The Meteorological Society of Japan, Hemispheric Contrast of Inorganic Chlorine Partitioning in the Polar Lower Stratosphere during Ozone Recovery Period Observed from Space, Sachiko Hayashida; Takafumi Sugita, The time evolution of two major chlorine reservoirs, HCl and ClONO2, in the polar lower stratosphere for both hemispheres in late spring and early summer was analyzed by utilizing satellite measurements. Analysis of the collocated ClONO2 observed with ILAS, and HCl observed with HALOE indicated that Cly was mostly in the form of HCl in the Antarctic vortex in November 1996, while more than half was ClONO2 in the Arctic vortex in March 1997. The analysis of N2O indicates that there was strong subsidence of the air inside the Antarctic vortex. The vortex remnant with HCl-rich air persisted in December 1996 even after the vortex weakened, suggesting slow mixing in the boundary. The ClONO2/Cly ratio was about 0.3, which was derived from analysis of correlation with N2O, as a representative value for the extravortex air and upper air inside the vortex (with potential temperature greater than similar to 600 K) in both hemispheres in spring., 2007, 3, 117, 120, Scientific journal
  • Refereed, SOLA, The Meteorological Society of Japan, Temporary Denitrification in the Antarctic Stratosphere as Observed by ILAS-II in June 2003, T. Sugita; N. Saitoh; S. Hayashida; T. Imamura; K. Saeki; H. Nakajima, To examine the characteristics of polar stratospheric clouds (PSCs) in the Antarctic, we have analyzed short-time (<= 5 days) changes in nitric acid (HNO(3)) and aerosol extinction coefficient (AEC) at 780 nm, focusing near 20 km altitude in June 2003 as observed by the Improved Limb Atmospheric Spectrometer (ILAS)-II. The Match technique based on the air parcel trajectory was applied to the ILAS-II data. The several Match pairs have revealed decreased HNO3 values with increased AEC values within short times, indicating "temporary" denitrification. It is also suggested that the observed PSCs could be nitric acid trihydrate (NAT) particles, considering that the temperatures were above existence temperatures for supercooled ternary solution, but below those for NAT. Given appropriate size distributions for NAT particles, it is suggested that the median radius of particles was less than 3 mu m., 2007, 3, 137, 140, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Intercomparison of ILAS-II version 1.4 aerosol extinction coefficient at 780 nm with SAGE II, SAGE III, and POAM III, N. Saitoh; S. Hayashida; T. Sugita; H. Nakajima; T. Yokota; M. Hayashi; K. Shiraishi; H. Kanzawa; M. K. Ejiri; H. Irie; T. Tanaka; Y. Terao; R. M. Bevilacqua; C. E. Randall; L. W. Thomason; G. Taha; H. Kobayashi; Y. Sasano, The Improved Limb Atmospheric Spectrometer (ILAS)-II on board the Advanced Earth Observing Satellite (ADEOS)-II observed stratospheric aerosol in visible/near-infrared/infrared spectra over high latitudes in the Northern and Southern hemispheres, intermittently from January to March and continuously from April through October 2003. This study assesses the data quality of ILAS-II version 1.4 (V1.4) aerosol extinction coefficient at 780 nm. In the Northern Hemisphere (NH), aerosol extinction coefficient (AEC) from ILAS-II agreed with extinctions from SAGE II and SAGE III within +/- 10% and with extinction from POAM III within +/- 15% at heights below 20 km. From 20 to 26 km, ILAS-II AEC was smaller than extinctions from the other three sensors; differences between ILAS-II and SAGE II ranged from 10% at 20 km to 34% at 26 km in the NH. Over the Southern Hemisphere (SH), ILAS-II AEC from 20 to 25 km in February was 12-66% below SAGE II extinction. The difference increased with increasing altitude. Comparisons between ILAS-II and POAM III from January to May in the SH ("non-PSC season'') yielded qualitatively similar results. From June to October ("PSC season''), ILAS-II extinction was also smaller than POAM III extinction above 17 km; however, ILAS-II extinction agreed with POAM III extinction to within +/- 15% from 12 to 17 km during the PSC season. The comparisons indicate that in both hemispheres the ILAS-II V1.4 AEC is comparable to extinctions from other measurements below approximately 20 km and systematically low above approximately 20 km although the mean difference is as small as similar to 2x10(-5) km(-1) during the non-PSC season., Jun. 2006, 111, 11, Scientific journal
  • Refereed, SOLA, The Meteorological Society of Japan, Variation in PSC Occurrence Observed with ILAS-II over the Antarctic in 2003, N. Saitoh; S. Hayashida; T. Sugita; H. Nakajima; T. Yokota; Y. Sasano, The Improved Limb Atmospheric Spectrometer (ILAS)-II frequently observed polar stratospheric clouds (PSCs) in the Southern Hemisphere (SH) throughout the winter of 2003. Simultaneous observations of the aerosol extinction coefficient (AEC) at 780 nm, nitric acid, and water vapor data were analyzed to investigate the ambient thermodynamic conditions associated with observed PSCs. PSCs were first observed with ILAS-II at the end of May, and observed most frequently in August/September as temperatures cooled. At approximately 20 km late in the PSC season, however, PSCs were less likely to occur, despite cold temperatures, because of the lower concentration of nitric acid due to denitrification caused by sedimentation of previously occurring PSCs. The probability of PSC occurrence and the probability of ambient temperatures colder than nitric acid trihydrate (NAT) saturation temperature (T-NAT) were well correlated below similar to 20 km throughout the winter. In contrast, PSC frequency at similar to 22 km from late August to early September was low even when temperatures were sufficiently colder than TNAT; this is, at least, partly because of the decrease in background aerosol particles in the atmosphere., 2006, 2, 72, 75, Scientific journal
  • Refereed, REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS, SPIE-INT SOC OPTICAL ENGINEERING, Characteristics of sulfate haze over East Asia retrieved with satellite and ground-based remote sensing data, Makoto Kuji; Sachiko Hayashida; Masataka Shiobara; Masanori Yabuki; Keiichiro Hara; Hiroshi Kobayashi; Tadahiro Hayasaka; Shinsuke Satake, Optical observation around near UV spectral region potentially enables us to retrieve light absorbing features of aerosol, such as type as well as optical thickness. We analyzed near UV observation data to identify haze properties around Japan in the autumn of 2003, using Global Imager onboard Advanced Earth Observing Satellite-II (ADEOS-II/GLI), which has 380nm and 400nm window channels. At the same time, we had optical observation, such as a ground-based LIDAR measurement and a shipborne skyradiometer measurement, so as to retrieve vertical profile, particle sphericity, particle size distribution, and optical thickness of the haze.Based upon the three kinds of analyses with remotely sensed data, such as satellite, LIDAR, and skyradiometer, we have the following characteristics of the haze: little UV absorbing, of optical thickness 0.5 (around 500nm), within lower boundary layer (less than around 1km a.s.l.), and of spherical and fine particles (0.2 mu m in radius).We also have some direct sampling measurements onboard Research Vessel Shirase, such as integrated nephelometer, particle soot/absorption photometer, and optical particle counter, so as to identify optical and microphysical properties of the haze as well as chemical composition analyses. The results of the surface direct sampling showed the dense haze dominantly consisted of smaller (0.2 mu m in radius) and sulfate particulates, which is consistent to the remotely sensed results.Backward trajectory simulations also indicate that the hazy air mass had arrived from/through some mega cities over East Asia. Further, we are going to investigate the consistency between optical, microphysical, chemical, and dynamical aspects using a chemical transport model., 2006, 6408, International conference proceedings
  • Refereed, High-Performance Computing, Springer Berlin Heidelberg, Development of an Interactive Visual Data Mining System for Atmospheric Science, Chiemi Watanabe; Eriko Touma; Kazuko Yamauchi; Katsuyuki Noguchi; Sachiko Hayashida; Kazuki Joe, 2005, 279, 286, In book
  • Refereed, SOLA, The Meteorological Society of Japan, Retrieval of Asian Dust Amount over Land using ADEOS-II/GLI near UV Data, Makoto Kuji; Noriko Yamanaka; Sachiko Hayashida; Motoaki Yasui; Akihiro Uchiyama; Akihiro Yamazaki; Teruo Aoki, We propose a retrieval method of Asian dust (Yellow sand or Kosa aerosol) columnar amount around source regions using a near ultraviolet radiometry observation from space. The method simultaneously retrieves an optical thickness and mode radius of Kosa aerosol, and then derives its columnar amount. The method was applied to ADEOS-II/GLI data in the spring of 2003 around Taklimakan desert source region, inland China. The retrieved optical thickness and mode radius were about 0.34 and 1.75 mu m, respectively, at a validation site. They are comparable to the in situ observations conducted within the framework of ADEC project. The estimated columnar amount around a validation site is about 2.77 g m(-2), which seems reasonable under a relatively calm situation. The method should be further validated with a regional model simulation study, and then it is useful to monitor Asian dust around source regions from space in the future., 2005, 1, 33, 36, Scientific journal
  • Refereed, The Journal of Physical Chemistry A, American Chemical Society (ACS), Formation of O(3P) Atoms in the Photolysis of N2O at 193 nm and O(3P) + N2O Product Channel in the Reaction of O(1D) + N2O, Satoshi Nishida; Kenshi Takahashi; Yutaka Matsumi; Nori Taniguchi; Sachiko Hayashida, The O(P-3) atom produced in the 193 nm photolysis of N2O has been detected by a technique of vacuum-ultraviolet laser-induced fluorescence spectroscopy around 130 nm. The quantum yield value of the O((3)p) atoms produced directly in the photolysis of N2O at 193 nm at room temperature has been determined to be 0.005 +/- 0.002. The O(P-3) atom formation process in the reaction of O(D-1) + N2O is also studied, and the channel branching ratio of O(P-3) + N2O has been determined to be 0.04 +/- 0.02 among the product channels, 2NO, N-2 + O-2, and O(P-3) + N2O. Photodissociation processes of N2O at 193 nm and reaction processes of O(D-1) + N2O system have been discussed on the basis of the experimental results. Because of importance of the O(D-1) + N2O reaction in the stratosphere, impact of the experimental result of 0(3p) formation from the O(D-1) + N2O reaction on the stratospheric chemistry is also studied by one-dimensional atmospheric model calculations., Apr. 2004, 108, 13, 2451, 2456, Scientific journal
  • Refereed, Journal of the Remote Sensing Society of Japan, The Remote Sensing Society of Japan, An Error Analysis of a Method for Retrieval of Tropospheric Aerosols Using UV Satellite Sensor, KUJI Makoto; Yukari Shibata; Kyoka Gamo; Noriko Yamanaka; Makoto Kuji; Sachiko Hayashida, The atmospheric aerosols play an important role in tropospheric chemistry. In this paper, we make an error analysis of a method for remote sensing of tropospheric aerosols over land using Global Ozone Monitoring Experiment (GOME) sensor. This algorithm, based on Direct Method [Torres et al., 1998], makes use of radiance measured in two UV wavelengths (335 and 395 nm). In this spectral region, the surface reflectivity is lower than that in visible range, for example, which enables us to retrieve aerosol properties easier over land in particular. At first, we present the results of sensitivity study with the two channels. Next, we make error analyses caused.by the uncertainties in the parameters such as surface albedo, height of aerosol layer, or viewing angle within a GOME pixel, so as to retrieve aerosol optical thickness and mode radius., 2004, 24, 4, 387, 397, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Analysis of ozone loss in the Arctic stratosphere during the late winter and spring of 1997 using the Chemical Species Mapping on Trajectories (CSMT) technique, A Kagawa; S Hayashida, A scheme to create synoptic maps of stratospheric minor species from asynoptic satellite measurements using a photochemical box model and trajectory analysis was developed and named Chemical Species Mapping on Trajectories (CSMT). CSMT combined with Improved Limb Atmospheric Spectrometer (ILAS) data were used to study the Arctic ozone loss mechanism in the late winter and early spring of 1997. Long- and short-lived species in the stratosphere were successfully mapped by the CSMT initialized with ILAS-observed ozone, nitric acid, and nitrous oxide. Comparisons of CSMT-derived data and ozonesonde data, and/or other satellite data, validated the scheme. The comparisons showed the reliability of the scheme in mapping long- and short-lived species. A chemical ozone loss amount was estimated using the chemical model; the maximum ozone loss rate was about 34 ppbv/day in late February. The integrated ozone loss from 13 January to 31 March was 41%, averaged over the entire polar vortex. The effects of differences in polar stratospheric cloud composition and a possible warm bias in the temperature data set were examined, and only minor differences were found in the ozone loss amount. The derived ozone loss rates and integrated ozone loss are consistent with results from other studies. The Arctic ozone loss in the late winter and early spring of 1997 depended significantly on latitude and showed complex features: ozone loss occurred mainly at lower latitudes until late February; the region of significant ozone loss shifted to higher latitudes in March. The CSMT scheme shows good potential for various applications including detailed analyses of chemical mechanisms in the atmosphere., Nov. 2003, 108, D22, 4698, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Quantum yield for N(S-4) production in the ultraviolet photolysis of N2O, T Nakayama; K Takahashi; Y Matsumi; N Taniguchi; S Hayashida, [1] Direct detection of N(S-4) atom formation in the 193 nm photolysis of N2O by a technique of vacuum ultraviolet (vuv) laser-induced fluorescence spectroscopy has been reported. Tunable vuv laser radiation around 120.071 nm that is resonant to the one-photon N(2p(2)3s P-4(1/2) - 2p(3) S-4(3/2)) transition has been generated by two-photon resonant four-wave sum frequency mixing in Hg vapor. The quantum yield value for N(S-4) formation in the N2O photolysis at 193 nm has been determined to be 2.1 (+/-0.9) x 10(-3). The N(S-4) detection technique, which is developed in this study, is very sensitive, and the minimum detection limit is estimated to be 2 x 10(9) atoms cm(-3). Impact of the photolytic N(S-4) and NO(X(2)Pi) production from N2O photolysis on stratospheric chemistry has been explored using a one-dimensional photochemical model, while the fragmentation was not considered in former model calculations. When the N(S-4) + NO dissociation channel is considered in the photochemical model, an enhancement of the NOx production rate (up to 3%) is observed, which is followed by a decrease of the steady state O-3 concentration throughout the stratosphere., Nov. 2003, 108, D21, 1, 7, Scientific journal
  • Refereed, ATMOSPHERIC CHEMISTRY AND PHYSICS, EUROPEAN GEOPHYSICAL SOC, Sensitivity studies of the recent new data on O(D-1) quantum yields in O-3 Hartley band photolysis in the stratosphere, N Taniguchi; S Hayashida; K Takahashi; Y Matsumi, The production yields of excited oxygen O(D-1) atoms from the near ultraviolet O-3 photolysis are essential quantities for atmospheric chemistry calculations because of its importance as major sources of hydroxyl (OH) radicals and nitric oxide (NO). Recently, new O(D-1) quantum yields from O-3 photolysis between 230 and 305 nm in the Hartley band region were reported, which are almost independent of the photolysis wavelength (0.88-0.93) and smaller than NASA/JPL-2000 recommendations (0.95 between 240 and 300 nm). In order to assess consequences of the new data of O(D-1) quantum yields on the stratospheric chemistry, the changes in stratospheric chemical partitioning and O-3 concentration are examined using a one-dimensional atmospheric model. Our steady state model simulations for 40degrees N in March indicate that the smaller O(D-1) quantum yields result in increases of stratospheric O-3 (up to similar to2% in the upper stratosphere), which are attributed to the changes in HOx, NOx, and ClOx abundance and their catalyzed O-3 loss rates., Sep. 2003, 3, 5, 1293, 1300, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Characteristics of Arctic polar stratospheric clouds in the winter of 1996/1997 inferred from ILAS measurements, N Saitoh; S Hayashida; Y Sasano; LL Pan, [1] The Improved Limb Atmospheric Spectrometer (ILAS) captured many polar stratospheric cloud (PSC) events in the Northern Hemisphere during the winter and early spring of 1997. Simultaneous measurements of nitric acid and aerosols by ILAS made it possible to infer PSC composition. The aerosol extinction coefficient and nitric acid data were compared with the theoretically predicted values for supercooled ternary solution (STS), nitric acid dihydrate (NAD), and nitric acid trihydrate (NAT) at thermodynamic equilibrium to classify PSC types. The observations showed that in 1997, both nitric-acid-containing solid and liquid PSCs formed over the Arctic during winter and early spring, until mid-March. The STS PSCs were observed early in the PSC season, in mid-January. Most of the PSCs observed late in the PSC season had features of nitric-acid-containing hydrates. An intensive analysis of the temperature histories suggested that most of the STS events observed in January had experienced the thermal conditions necessary for the formation of liquid PSCs. The nitric-acid-containing hydrates observed in March seemed not to have been influenced by any mountain-induced lee waves. The process of nitric-acid-containing hydrate formation based on synoptic scale temperature change is discussed., Sep. 2002, 107, D24, 1, 8, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Quantum yields of O(D-1) formation in the photolysis of ozone between 230 and 308 nm, K Takahashi; S Hayashi; Y Matsumi; N Taniguchi; S Hayashida, Ozone molecules are photolyzed in the strong photoabsorption band of the Hartley band at 230-308 nm, and the O(P-3(j)) photofragments produced by the photolysis are detected directly by a technique of laser-induced fluorescence around 130 nm. The quantum yield values for O( 1 D) formation in the photolysis of ozone at 297 +/- 2 K are determined as a function of the photolysis wavelength, using the O(D-1) quantum yield value of 0.79 at 308 nm as a reference. The O(D-1) quantum yield values obtained are found to be almost independent of the photolysis wavelength over the Hartley band (similar to0.91). The results are compared with the values measured previously using various experimental techniques and also with the recommendation values for use in atmospheric modeling. The effects of the present yield data on the O(D-1) production rates from ozone photolysis in the stratosphere are evaluated. Impact of our new O(D-1) quantum yield values on the stratospheric chemistry has also been explored using a one-dimensional photochemical model. The smaller O(D-1) production rates as compared to the latest NASA/JPL recommendation values are followed by changes in the efficiency of the chemical chain reactions involving HOx, NOx, and ClOx and result in the higher O-3 concentrations throughout the stratosphere., Sep. 2002, 107, D20, 4440, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, Satellite observation of dehydration in the Arctic Polar stratosphere, LL Pan; WJ Randel; H Nakajima; ST Massie; H Kanzawa; Y Sasano; T Yokota; T Sugita; S Hayashida; S Oshchepkov, [1] We report the first space-borne observation of dehydration in the Arctic polar stratosphere. In January 1997, the Improved Limb Atmospheric Spectrometer (ILAS) observed up to similar to3 ppmv water vapor reduction during ice cloud formation and similar to2 ppmv permanent removal of water vapor, mostly at altitudes between 23 and 26 km. In some cases, the dehydrated air was downwind from mountain wave induced Polar Stratospheric Cloud (PSC) events. Furthermore, simultaneous observations of HNO(3) and H(2)O show that the gas phase reduction of HNO(3) in the Arctic (January 1997) was much smaller than that observed in the Antarctic (June 1997) when a similar level of water vapor reduction occurred., Apr. 2002, 29, 8, 1, 4, Scientific journal
  • Refereed, Geophysical Research Letters, AMER GEOPHYSICAL UNION, Anti-correlation between stratospheric aerosol extinction and the AÅngström parameter from multiple wavelength measurements with SAGE II - A characteristics of the decay period following major volcanic eruptions, Sachiko Hayashida; Mariko Horikawa, Stratospheric Aerosol and Gas Experiment (SAGE) II data at multiple wavelengths were analyzed to show how aerosol extinction decays with time following major volcanic eruptions. Comparisons were made between the lowest background level in 1999 and the past data record of the stratospheric aerosol layer. The time variation of the extinction coefficients was compared with the Ångström parameter, which is a good indicator of particle size. A clear anti-correlation was found between the extinction and the Ångström parameter after the eruption of Mt. Pinatubo. Comparison of the extinction coefficients and Ångström parameters in 1989 and 1999 made it clear that the aerosol layer was affected by volcanic eruptions in 1989. The distinguishing negative correlation is a characteristics feature of decay periods following volcanic eruptions., 01 Nov. 2001, 28, 21, 4063, 4066, Scientific journal
  • Refereed, OPTICAL REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS II, SPIE-INT SOC OPTICAL ENGINEERING, Stratospheric background aerosols and polar stratospheric clouds observed with satellite sensors - Inference of particle composition and sulfate amount -, S Hayashida; N Saitoh; M Horikawa; Y Amemiya; C Brogniez; T Deshler; Y Sasano, The Improved Limb Atmospheric Spectrometer (ILAS) on board the Advanced Earth Observing Satellite (ADEOS) successfully observed atmospheric profiles over the Arctic and Antarctic from November 1996 though June 1997. It revealed the frequent occurrence of Polar Stratospheric Clouds (PSCs) over the Arctic between January and mid-March 1997. The ILAS provides a unique data set, including aerosol extinction at 780 nm, nitric acid, water vapor, and nitrous oxide, simultaneously. This paper demonstrates the validity of the ILAS aerosol data and presents an approach to estimate the chemical composition of PSCs. Comparisons are made with data from the Stratospheric Aerosol and Gas Experiment (SAGE) II., 2001, 4150, 76, 86, International conference proceedings
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, Arctic polar stratospheric clouds observed with the Improved Limb Atmospheric Spectrometer during winter 1996/1997, S Hayashida; N Saitoh; A Kagawa; T Yokota; M Suzuki; H Nakajima; Y Sasano, The newest retrieval (version 4.20) of the Improved Limb Atmospheric, Spectrometer (ILAS) on board the Advanced Earth Observing Satellite (ADEOS) captured more than 60 polar stratospheric cloud (PSC) profiles during the winter and early spring of 1997 in the Northern Hemisphere. That winter is well known for its long-lasting polar vortex and significant ozone loss over the Arctic. The ILAS PSC measurements were the only spaceborne measurements made on a regular basis (about 14 times daily) during that period. PSC events were selected by comparing an individual profile with a threshold value at each altitude that was defined as an average of the extinction coefficient of background aerosols plus five standard deviations. Many of the selected PSC events correspond to temperatures lower than the nitric acid trihydrate (NAT) temperature, which was calculated using nitric acid and water vapor data observed with ILAS. The correlation between the aerosol extinction coefficient and temperature shows that the extinction data increase as the temperature decreases to a point several degrees lower than the NAT temperature, suggesting the formation of particles of a supercooled ternary solution. Some of the nitric acid profiles corresponding to intense PSC events showed a decreased mixing ratio, suggesting the uptake of nitric acid in the gas-phase into particles. The highest probability of sighting PSCs was obtained in mid-January at an altitude of approximately 23 km, and subsequent occurrences of PSCs were found intermittently at lower altitudes until mid-March. The 1997 Arctic winter was characterized by the prolonged appearance of PSCs until mid-March, associated with a long-lasting polar vortex. The PSC data presented in this paper compensate for the gap in the long-term PSC record from space and help to reveal the chemical mechanisms that caused the Arctic ozone loss observed that season., Oct. 2000, 105, D20, 24715, 24730, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, ILAS observations of chemical ozone loss in the Arctic vortex during early spring 1997, Y Sasano; Y Terao; HL Tanaka; T Yasunari; H Kanzawa; H Nakajima; T Yokota; H Nakane; S Hayashida; N Saitoh, Chemical ozone loss rates were estimated for the Arctic stratospheric vortex by using ozone profile data (Version 3.10) obtained with the Improved Limb Atmospheric Spectrometer (ILAS) for the spring of 1997. The analysis method is similar to the Match technique, in which an air parcel that the ILAS sounded twice at different locations and at different times was searched from the ILAS data set, and an ozone change rate was calculated from the two profiles. A statistical analysis indicates that the maximum ozone loss rate was found on the 450 K potential temperature surface in February, amounting to 84 ppbv/day. The integrated ozone loss for two months from February to March 1997 showed its maximum of 1.5+/-0.1 ppmv at the surface that followed the diabatic descent of the air parcels and reached the 425 K level on March 31. This is about 50% of the initial (February 1) ozone concentration. The present study demonstrated that data from a solar occultation sensor with a moderate altitude resolution can be used for the Match analysis., Jan. 2000, 27, 2, 213, 216, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, Comparison of aerosol extinction measurement by ILAS and SAGE II, SP Burton; LW Thomason; Y Sasano; S Hayashida, Seventy-three pairs of nearly coincident profiles of aerosol extinction at visible wavelengths from the Improved Limb Atmospheric Spectrometer (Version 3.1) and the Stratospheric Aerosol and Gas Experiment (SAGE) II (Version 5.931) are compared for a week in January and February 1997. The comparisons require an interpolation of SAGE Il multi-wavelength aerosol extinction profiles to compensate for the difference between the measurement wavelengths of the two instruments. The profiles are shown to agree within ten percent for the altitude range from approximately 15 to 24 km, with a small systematic bias that requires further study., Jun. 1999, 26, 12, 1719, 1722, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, Report on the ILAS Validation Experiments Interim Report Meeting held in Paris, France, Sasano Yasuhiro; Shiotani Masato; Nakane Hideaki; Kanzawa Hiroshi; Suzuki Makoto; Hayashida Sachiko, 30 Apr. 1998, 45, 4, 279, 285, Scientific journal
  • Refereed, Journal of the Remote Sensing Society of Japan, The Remote Sensing Society of Japan, Spatial and time variation of the wavelength dependence of the extinction coefficients for the stratospheric aerosols observed with SAGEII, 林田佐智子; 西村亜紀; 齋藤尚子, 日本リモートセンシング学会論文賞, 1998, 18, 1, 32, 41, Scientific journal
  • Refereed, OPTICAL REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS, SPIE-INT SOC OPTICAL ENGINEERING, Improved Limb Atmospheric Spectrometer (ILAS): Validation and preliminary scientific results, Y Sasano; M Suzuki; T Yokota; H Kanzawa; H Nakajima; H Nakane; M Shiotani; Y Kondo; S Hayashida, Improved Limb Atmospheric Spectrometer (ILAS) on board the Advanced Earth Observing Satellite (ADEOS) obtained 8-months data for stratospheric ozone layer over the high-latitude regions in both the southern and northern hemispheres. Main parameters observed by ILAS were vertical profiles of ozone, nitrogen dioxide, nitric acid, nitrous oxide, methane, water vapor, aerosol extinction coefficient (at 780 nm), temperature, and pressure. Products from ILAS measurements were validated with correlative measurement data The instrument and data processing scheme will be overviewed, and some results of validation and preliminary scientific analyses will be presented., 1998, 3501, 61, 71, International conference proceedings
  • Refereed, エアロゾル研究, 日本エアロゾル学会, SAMⅡ/SAGE/SAGEⅡによる成層圏エアロゾルの観測, HAYASHIDA Sachiko, 1997, 12, 1, 13, 17, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, Gravity wave activity in the upper stratosphere and lower mesosphere observed with the Rayleigh lidar at Tsukuba, Japan., Y. Murayama; T. Tsuda; R. Wilson; H. Nakane; S. A. Hayashida; N. Sugimoto; I. Matsui; Y. Sasano, We delineated the climatological characteristics of the potential energy of gravity waves, E(p), using Rayleigh lidar observations made in 1990-1991 at Tsukuba, Japan (36-degrees-N, 140-degrees-E). Tendency of large and small values of E(p) in winter and summer, respectively, was detected in the upper stratosphere (30-45 km), suggesting annual variation with a winter maximum. This annual cycle seemed to be consistent with lidar observations made in France and UK [Wilson et al., 1991; Mitchell et al., 1991]. The obtained E(p) values in the upper stratosphere and lower mesosphere (45-60 km) were rather similar to the French data, despite the large scatter of the Tsukuba values., Jul. 1994, 21, 14, 1539, 1542, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, STRATOSPHERIC AEROSOL CHANGE IN THE EARLY STAGE OF VOLCANIC DISTURBANCE BY THE PINATUBO ERUPTION OBSERVED OVER TSUKUBA, JAPAN, S HAYASHIDA; Y SASANO, An increase in the amount of stratospheric aerosol due to the Pinatubo eruption (June 12-15, 1991, 15.14-degrees-N, 120.35-degrees-E) was observed from the end of June by a lidar in NIES, Tsukuba (36-degrees-N, 140-degrees-E). The first arrival of volcanic aerosol layers was observed just above the tropopause on June 28, 199 1, only two weeks after the eruption. Aerosol layers higher than 20 km appeared sporadically in July and August, reflecting the inhomogeneity of aerosol distribution. After the change in the wind system from summer easterlies to winter westerlies, the main body of the volcanic aerosol layer made its appearance over Tsukuba. The integrated backscattering coefficient (IBC) increased in winter as a result of transportation of aerosols from the tropical region. The IBC, which can be converted to optical thickness, exceeded the level of the value observed after the El Chichon eruption., Apr. 1993, 20, 7, 575, 578, Scientific journal
  • Refereed, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, METEOROLOGICAL SOC JAPAN, Observation of the Pinatubo Volcanic Cloud by lidat network in Japan., O UCHINO; T NAGAI; T FUJIMOTO; M FUJIWARA; H AKIYOSHI; S YASUMATSU; S HAYASHIDA; Y SASANO; H NAKANE; Y IWASAKA; M HASE; T SHIBATA; T ITABE; K ASAI; A NOMURA; Y SAITO; T KANO; Y SAI; K TAMAKI; R NOMURA; T SUNAGAWA; C NAGASAWA; M ABO; Y IDESAKO; K KAI, The latitudinal and vertical distribution of stratospheric aerosols injected by eruptions of Mt. Pinatubo on June 15, 1991 was obtained in Japan by a lidar network extending from Naha (26.2-degrees-N) to Wakkanai (45.4-degrees-N). Results from June to October 1991 are reported. An increase of aerosols originating froin the Pinatubo eruptions was observed first on June 28, 1991, at approximately 16 km. The layer was observed continuously since then. The upper layer, above 20 km. was observed first on July 15, thereafter it disappeared at all stations, but reappeared on August 6. The upper layer was sporadic, and not observed in July over Nagano, some 200 km from Tsukuba, where it was observed. This indicates the non-uniform density of the cloud in the upper region., Apr. 1993, 71, 2, 285, 295, Scientific journal
  • Refereed, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, METEOROLOGICAL SOC JAPAN, COMPARISON OF OZONE PROFILES OBTAINED WITH NIES-DIAL AND SAGE-II MEASUREMENTS, H NAKANE; Y SASANO; S HAYASHIDA-AMANO; N SUGIMOTO; I MATSUI; A MINATO; MP MCCORMICK, Ozone profiles obtained with the DIAL (Differential Absorption Lidar) system at the National Institute for Environmental Studies (NIES), Tsukuba, Japan (36-degrees-N, 140-degrees-E) were compared with data provided by the satellite sensor SAGE II. The SAGE II data were selected based on criteria of spatial and temporal differences between the DIAL and the SAGE II measurements: five degrees in latitude and fifteen degrees in longitude, within a latitudinal band from 31-degrees to 41-degrees-N, and within one, three and five days after or before the DIAL measurements. Results show very good agreement for the individual and the zonal-mean profiles. The average mean difference between the DIAL and the SAGE II measurements over the altitudes 15-50 km was about 10 %., Feb. 1993, 71, 1, 153, 159, Scientific journal
  • Refereed, Proceedings of Quadrennial Ozone Symposium, Stratospheric aerosol increase after eruption of Pinatubo observed with lidar and aureolemeter, Sachiko Hayashida; Yasuhiro Sasano; Hideaki Nakane; Ichiro Matsui, 1992, International conference proceedings
  • Refereed, JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, TERRA SCIENTIFIC PUBL CO, Vertical profiles of temperature and ozone observed during DYANA campaign with the NIES ozone lidar system at Tsukuba., H NAKANE; S HAYASHIDA; Y SASANO; N SUGIMOTO; I MATSUI; A MINATO, Temperature and ozone profiles were observed with the NIES ozone lidar system during the DYANA campaign from January 15th to March 15th at Tsukuba (36-degrees-E, 140-degrees-N). Temperature profiles from 30 km to 90 km and ozone profiles from 20 km to 45 km were obtained. The mesospheric temperature profiles were highly variable and deviations from the NASA88 model atmosphere were large in January and February, but the deviations were small in March 1990. Especially, conspicuous variations of the mesospheric temperature profiles, rapid increase around 55 km and rapid decrease around 75 km, were observed during the period from January 24th to 26th. We also observed layers with large vertical temperature gradients close to the adiabatic lapse rate above clear inversion layers in the middle mesosphere on January 17th and February 17th. The observed ozone number densities were > 10% lower than the ozone sonde data averaged over 22 years at 25 km and 30 km on January 17th, 25th, 26th. The deviations from the averaged ozone sonde data were small on February 5th, March 8th, 10th and 13th., 1992, 44, 11, 1071, 1083, Scientific journal
  • Refereed, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, VOLCANIC DISTURBANCES IN THE STRATOSPHERIC AEROSOL LAYER OVER TSUKUBA, JAPAN, OBSERVED BY THE NATIONAL INSTITUTE FOR ENVIRONMENTAL-STUDIES LIDAR FROM 1982 THROUGH 1986, S HAYASHIDA AMANO; Y SASANO; Y IIKURA, The stratospheric aerosol layer has been monitored from 1982 through 1986 by a lidar in NIES, Tsukuba (36-degrees-N, 140-degrees-E). A strong enhancement in the signals from the stratospheric aerosol layer was observed in 1982 and 1983 as a result of the volcanic aerosols from the El Chichon (Mexico) eruption in March and April 1982. Multiplex thin aerosol layers with approximately 1-km thickness were observed in the autumn of 1982. Another enhancement in the amount of stratospheric aerosols was observed in the winter of 1985/1986. The origin of the new aerosol layer can be attributed to the eruptions of Nevado del Ruiz (4-degrees-53'N, 75-degrees-22'W) on November 13, 1985. The long-term decay of the integrated backscattering coefficient (IBC) from 1982 through 1986 will also be discussed. The optical thickness converted from IBC observed at Tsukuba in later 1982 was up to about 0.2 which was larger than that observed over North America in the same period., Aug. 1991, 96, D8, 15469, 15478, Scientific journal
  • Not Refereed, OYOBUTURI, The Japan Society of Applied Physics, Multiple Wavelength Laser Radar for Measuring the Stratospheric and Tropospheric Ozone Profile, SUGIMOTO Nobuo; SASANO Yasuhiro; NAKANE Hideaki; HAYASHIDA-AMANO Sachiko; MATSUI Ichiro; MINATO Atsushi, A multiple wavelength differential absorption laser radar has been constructed to measure the ozone profiles from the lower troposphere up to the upper stratosphere. The system consists of two subsystems ; one (the low altitude system ; LA) for the tropospheric measurements and the other (the high altitude system ; HA) for the stratospheric measurements. The LA system employs a KrF excimer laser with a deuterium and a hydrogen Raman shifter to generate 277, 292 and 313 nm laser pulses, and a receiving telescope with a diameter of 0.56 meter. The HA system has a XeCl laser with a deuterium Raman shifter and a XeF laser to generate 308, 339 and 351 nm laser pulses, and a receiving telescope with a diameter of 2 meters. The whole system is controlled by a mini-computer. Details of the system and some measurement examples are presented., 1989, 58, 9, 1385, 1397, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, 差分吸収レーザーレーダーを用いた宇宙からのオゾン観測の可能性について, 林田佐智子; 杉本伸夫; 笹野泰弘; 清水 浩, 1989, 36, 7, 439, 448, Scientific journal
  • Refereed, Tenki, The Meteorological Society of Japan, Review of the study on the El Chichon eruption, HAYASHIDA Sachiko, 1988, 35, 4, 215, 230, Scientific journal
  • Refereed, Journal of the Meteorological Society of Japan., Meteorological Society of Japan, Consideration of Depolarization Ratio Measurements by Lidar-in Relation to Chemical Composition of Aerosol Particles, Aikichi Kobayashi; Sachiko Hayashida; Yasunobu Iwasaka; Masahiko Yamato; Akira Ono, 1987, 65, 2, 303, 307
  • Refereed, Journal of the Remote Sensing Society of Japan, The Remote Sensing Society of Japan, The effect of the eruption of El Chichion on stratospheric aerosol layer, HAYASHIDA Sachiko, The results of lidar measurements of the stratospheric aerosol increases after the El Chichón eruption are reviewed. The eruption of El Chichón loaded about 10 Tg sulfuric acid aerosols in the stratosphere. The aerosols rounded the earth in about three weeks and dispersed towards the poles gradually. It is conjectured on the basis of depolarization meaeurements that a lare amount of volcanic ash was also injected into the stratosphere.
    The stratospheric aerosols scatter the solar radiation and cool the ground, while they absorb the radiation, heating the stratsphere. Some model calculations are also reviewed to evaluate the effects of the stratospheric aerosols loaded by the El Chichbn eruption on the temperature., 1986, 6, 6, 125, 136, Scientific journal
  • Refereed, Journal of the Meteorological Society of Japan., Meteorological Society of Japan, Measurements of the Polarization Properties of Kosa (Asian Dust-storm) Particles by a Laser Radar in Spring 1983, Aikichi Kobayashi; Sachiko Hayashida; Kikuo Okada; Yasunobu Iwasaka, 1985, 63, 1, 144, 149
  • Refereed, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, METEOROLOGICAL SOC JAPAN, ON THE LONG-TERM VARIATION OF STRATOSPHERIC AEROSOL CONTENT AFTER THE ERUPTION OF VOLCANO EL CHICHON - LIDAR MEASUREMENTS AT NAGOYA, JAPAN, S HAYASHIDA; Y IWASAKA, 1985, 63, 3, 465, 473, Scientific journal
  • Refereed, GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, INCREASING BACKSCATTERED LIGHT FROM THE STRATOSPHERIC AEROSOL LAYER AFTER MT EL-CHICHON ERUPTION LASER-RADAR MEASUREMENT AT NAGOYA (35-DEGREES-N, 13-DEGREES-E), Y IWASAKA; S HAYASHIDA; A ONO, 1983, 10, 6, 440, 442, Scientific journal
  • Refereed, Atmospheric Chemistry and Physics, Copernicus GmbH, Technical note: Emission mapping of key sectors in Ho Chi Minh City, Vietnam, using satellite-derived urban land use data, Trang Thi Quynh Nguyen; Wataru Takeuchi; Prakhar Misra; Sachiko Hayashida, Abstract. Emission inventories are important for both simulating pollutant concentrations and designing emission mitigation policies. Ho Chi Minh City (HCMC) is the biggest city in Vietnam but lacks an updated spatial emission inventory (EI). In this study, we propose a new approach to update and improve a comprehensive spatial EI for major short-lived climate pollutants (SLCPs) and greenhouse gases (GHGs) (SO2, NOx, CO, non-methane volatile organic compounds (NMVOCs), PM10, PM2.5, black carbon (BC), organic carbon (OC), NH3, CH4, N2O and CO2). Our originality is the use of satellite-derived urban land use morphological maps which allow spatial disaggregation of emissions. We investigated the possibility of using freely available coarse-resolution satellite-derived digital surface models (DSMs) to estimate building height. Building height is combined with urban built-up area classified from Landsat images and nighttime light data to generate annual urban morphological maps. With outstanding advantages of these remote sensing data, our novel method is expected to make a major improvement in comparison with conventional allocation methodologies such as those based on population data. A comparable and consistent local emission inventory (EI) for HCMC has been prepared, including three key sectors, as a successor of previous EIs. It provides annual emissions of transportation, manufacturing industries, and construction and residential sectors at 1 km resolution. The target years are from 2009 to 2016. We consider both Scope 1, all direct emissions from the activities occurring within the city, and Scope 2, that is indirect emissions from electricity purchased. The transportation sector was found to be the most dominant emission sector in HCMC followed by manufacturing industries and residential area, responsible for over 682 Gg CO, 84.8 Gg NOx, 20.4 Gg PM10 and 22 000 Gg CO2 emitted in 2016. Due to a sharp rise in vehicle population, CO, NOx, SO2 and CO2 traffic emissions show increases of 80 %, 160 %, 150 % and 103 % respectively between 2009 and 2016. Among five vehicle types, motorcycles contributed around 95 % to total CO emission, 14 % to total NOx emission and 50 %–60 % to CO2 emission. Heavy-duty vehicles are the biggest emission source of NOx, SO2 and particulate matter (PM) while personal cars are the largest contributors to NMVOCs and CO2. Electricity consumption accounts for the majority of emissions from manufacturing industries and residential sectors. We also found that Scope 2 emissions from manufacturing industries and residential areas in 2016 increased by 87 % and 45 %, respectively, in comparison with 2009. Spatial emission disaggregation reveals that emission hotspots are found in central business districts like Quan 1, Quan 4 and Quan 7, where emissions can be over 1900 times those estimated for suburban HCMC. Our estimates show relative agreement with several local inherent EIs, in terms of total amount of emission and sharing ratio among elements of EI. However, the big gap was observed when comparing with REASv2.1, a regional EI, which mainly applied national statistical data. This publication provides not only an approach for updating and improving the local EI but also a novel method of spatial allocation of emissions on the city scale using available data sources., 24 Feb. 2021, 21, 4, 2795, 2818, Scientific journal
  • Refereed, Scientific Reports, Springer Science and Business Media LLC, Nitrogen oxides concentration and emission change detection during COVID-19 restrictions in North India, Prakhar Misra; Masayuki Takigawa; Pradeep Khatri; Surendra K. Dhaka; A. P. Dimri; Kazuyo Yamaji; Mizuo Kajino; Wataru Takeuchi; Ryoichi Imasu; Kaho Nitta; Prabir K. Patra; Sachiko Hayashida, AbstractCOVID-19 related restrictions lowered particulate matter and trace gas concentrations across cities around the world, providing a natural opportunity to study effects of anthropogenic activities on emissions of air pollutants. In this paper, the impact of sudden suspension of human activities on air pollution was analyzed by studying the change in satellite retrieved NO2 concentrations and top-down NOx emission over the urban and rural areas around Delhi. NO2 was chosen for being the most indicative of emission intensity due to its short lifetime of the order of a few hours in the planetary boundary layer. We present a robust temporal comparison of Ozone Monitoring Instrument (OMI) retrieved NO2 column density during the lockdown with the counterfactual baseline concentrations, extrapolated from the long-term trend and seasonal cycle components of NO2 using observations during 2015 to 2019. NO2 concentration in the urban area of Delhi experienced an anomalous relative change ranging from 60.0% decline during the Phase 1 of lockdown (March 25–April 13, 2020) to 3.4% during the post-lockdown Phase 5. In contrast, we find no substantial reduction in NO2 concentrations over the rural areas. To segregate the impact of the lockdown from the meteorology, weekly top-down NOx emissions were estimated from high-resolution TROPOspheric Monitoring Instrument (TROPOMI) retrieved NO2 by accounting for horizontal advection derived from the steady state continuity equation. NOx emissions from urban Delhi and power plants exhibited a mean decline of 72.2% and 53.4% respectively in Phase 1 compared to the pre-lockdown business-as-usual phase. Emission estimates over urban areas and power-plants showed a good correlation with activity reports, suggesting the applicability of this approach for studying emission changes. A higher anomaly in emission estimates suggests that comparison of only concentration change, without accounting for the dynamical and photochemical conditions, may mislead evaluation of lockdown impact. Our results shall also have a broader impact for optimizing bottom-up emission inventories., 07 May 2021, 11, 1, Scientific journal
  • Refereed, Earth and Space Science, American Geophysical Union (AGU), Genesis of a Severe Dust Storm over the Indian Subcontinent: Dynamics and Impacts, Jaydeep Singh; Narendra Singh; Narendra Ojha; A. K. Srivastava; Deewan Singh Bisht; K. Rajeev; N. V; P. Kiran Kumar; Ravi S. Singh; Vivek Panwar; S. K. Dhaka; Vinay Kumar; Tomoki Nakayama; Yutaka Matsumi; Sachiko Hayashida; A. P. Dimri, The genesis, dynamics, and impacts of a severe dust storm over the central Himalaya during June 13–17, 2018 have been investigated using in situ measurements, satellite data, and model reanalysis. A low-pressure system over northern India and prevalence of strong winds (∼20 ms−1) triggered the dust storm leading to poor visibility conditions and five-fold enhancement in the fine particulate matter (PM2.5) over the central Himalaya. Enhancements in Aerosol Optical Depth (AOD) were observed to be stronger over the Himalayan foothills site (Lumbini) than that over the Indo-Gangetic Plain (IGP) site-Gandhi College. The sharp reductions in Angstrom exponent (α) from about 1.2 to 0.3 indicated the dominance of coarse-mode aerosols during the dust episode. Model results show an enhancement in the dust from 1.5 to 2.5 Tg (∼70%) over the northern Indian subcontinent, with about half of the contribution from the regional source (Thar Desert). Interestingly, dust storm also had significant impacts on turbulent kinetic energy (2.9–9.6 m2 s−2), vertical momentum flux (0.9–3.3 Nm−2), and sensible heat flux (34.8 to −33.9 Wm−2), suggesting turbulent mixing of aerosols and cooling near the surface over the Himalayas. Our study highlights that the large-scale dust storms exposed to additional dust and pollution from regional sources can profoundly impact the air quality, heat fluxes, and radiative balance over the northern Indian subcontinent. The study would also help in evaluating the results of climate models and to assess the impacts of dust on the hydrological processes and melting Himalayan glaciers., 17 Aug. 2021, 9, 2, Scientific journal
  • 日本土壌肥料学会講演要旨集, 一般社団法人 日本土壌肥料学会, P8-2-5 南部インド水田地帯における大気メタン濃度の経時変化(ポスター,8-2 地球環境,2017年度仙台大会), 山本 昭範; 林田 佐智子; 寺尾 有希夫; Ravi V; 小野 圭介; 須藤 重人; Oo Aung Zaw; 秀森 丈寛; 出原 雅也; 松見 豊; 犬伏 和之; 間野 正美, 2017, 63, 0, 173, 173
  • 日本土壌肥料学会講演要旨集, 一般社団法人 日本土壌肥料学会, P8-2-2 南部インド水田地帯における大気メタン連続観測(ポスター,8-2 地球環境,2016年度佐賀大会), 山本 昭範; 小野 圭介; 須藤 重人; 秀森 丈寛; 出原 雅也; 松見 豊; 犬伏 和之; 間野 正美; 竹内 大樹; 林田 佐智子, 2016, 62, 172, 172
  • Refereed, Journal of Remote Sensing Society of Japan, 北インド・パンジャーブ地方における稲藁焼きがもたらす環境への影響, Sachiko Hayashida, Nov. 2021, 41, 5, 611, 614, Scientific journal
  • Refereed, Geophysical Research Letters, American Geophysical Union (AGU), Aerosol Loading and Radiation Budget Perturbations in Densely Populated and Highly Polluted Indo‐Gangetic Plain by COVID‐19: Influences on Cloud Properties and Air Temperature, P. Khatri; T. Hayasaka; B. Holben; S. N. Tripathi; P. Misra; P. K. Patra; S. Hayashida; U. C. Dumka, 28 Oct. 2021, 48, 20, Scientific journal
  • Refereed, Journal of Remote Sensing Society of Japan, Intercomparison of tropospheric nitrogen dioxide over Indian subcontinent observed by TROPOMI and OMI, Kaho Nitta; Prakhar Misra; Sachiko Hayashida, Mar. 2022, 42, 1, 36, 50, Scientific journal
  • Journal of Environmental Conservation Engineering, Society of Environmental Conservation Engineering, Influence of the destruction of the ozone layer on plants., TAKEUCHI Yuichi; HAYASHIDA Sachiko, 1987, 16, 11, 732, 735
  • Earozoru Kenkyu, Japan Association of Aerosol Science and Technology, Stratospheric Aerosols and Global Environment, HAYASHIDA Sachiko, 1991, 6, 2, 137, 142
  • Jpn. J. Thermophys. Prop., JAPAN SOCIETY OF THERMOPHYSICAL PROPERTIES, On the destruction of ozone layer by CFC., Hayashida-Amano Sachiko, For more than a decade many researches have been done to study the harmful effects of CFC on the stratospheric ozone layer. Only recently, it became recognized that the total column of ozone is decreasing globally. The results of model assesments of the CFC effects on the stratospheric ozone layer and the recent analysis of ozone data are reviewed., 1989, 3, 1, 27, 30
  • Transactions of Visualization Society of Japan, The Visualization Society of Japan, "Global Observation Data Analysis System (GODAS): Visualization tools for global atmospheric data based on PV-wave and their applications to data analysis of ILAS, TOMS, and SAGEII", Hayashida Sachiko, This paper will present some examples of data visualization in the field of atmospheric science. It is essentially important to visualize the spatial feature of distribution of atmospheric compositions such as ozone, aerosol, and so on for the research of global environmental problems. We have developed some visualization tools to analyze various kinds of satellite data and applied them for the analysis of ozone destruction in the stratosphere. An example of visualization of the Polar Stratospheric Cloud (PSC) over the Arctic observed with a satellite sensor will be presented. The Improved Limb Atmospheric Spectrometer (ILAS) observed many PSC events during the winter of 1997, when there was a significant decrease in Arctic ozone. More than a hundred PSC profiles were identified over the Arctic during the period., 1999, 19, 1, 55, 56
  • Earozoru Kenkyu, Japan Association of Aerosol Science and Technology, Tropospheric Aerosol Observation and Measurement 2. Remote Sensing, HAYASHIDA Sachiko, 20 Jun. 2001, 16, 2, 98, 98
  • Science of The Total Environment, Elsevier BV, Ecosystem carbon dioxide exchange and water use efficiency in a triple-cropping rice paddy in Southern India: A two-year field observation, Aung Zaw Oo; Akinori Yamamoto; Keisuke Ono; Chellappan Umamageswari; Masayoshi Mano; Koothan Vanitha; Palanisamy Elayakumar; Shoji Matsuura; Kaliappan Sathiya Bama; Marimuthu Raju; Kazuyuki Inubushi; Shigeto Sudo; Naoko Saitoh; Sachiko Hayashida; Venkatachalam Ravi; Vellaisamy Ambethgar, Sep. 2022, 158541, 158541, Scientific journal
  • 天気, 日本気象学会, オゾンに関する観測的研究の将来展望 : 2018年秋季オゾン研究連絡会の報告, 林田, 佐智子; 竹内, 綾子; 金谷, 有剛; 高島, 久洋; 藤原, 正智; 宮崎, 和幸; 笠井, 康子, 2019, 66, 6, 457, 461, Scientific journal

MISC

  • Not Refereed, 奈良女子大学教育システム研究開発センター・教育システム研究, 天文学を通じた地学学習の実践検討 −高等学校理科「地学」領域教育における高大連携授業研究の試み−, 久慈 誠; 米田隆恒; 林田佐智子; 久慈誠, 2017, 153, 156
  • Not Refereed, 第24回 生研フォーラム講演集, アフリカにおけるGOSAT で観測されたメタンと二酸化炭素の比率, 林田佐智子; 小野朗子, Mar. 2016
  • Not Refereed, 第24回 生研フォーラム講演集, カゲ指数を用いた樹高の見積もり, 小野朗子; 竹内渉; 林田佐智子, Mar. 2016
  • Not Refereed, 大会講演予講集, 日本気象学会, 東アジアにおける大気微量成分の衛星観測結果とモデルシミュレーションの比較, 茅場 聡子; 林田 佐智子; 小野 朗子; 出牛 真; 梶野 瑞王; 関山 剛; 眞木 貴史; 山地 一代, 2015, 108, 445, 445
  • Not Refereed, 大会講演予講集, 日本気象学会, P416 クラスタ解析を用いたアジアにおけるメタン変動の研究(ポスター・セッション), 長瀬 友美; 林田 佐智子; 小野 朗子; 竹内 渉, 2013, 103, 103
  • Not Refereed, 大会講演予講集, 日本気象学会, P367 SCIAMACHYセンサで観測されたアジア域におけるメタン変動の研究 : 地表面冠水率,植生指数,HotSpot件数のデータを用いた解析(ポスター・セッション), 吉崎 早苗; 林田 佐智子; 竹内 渉, 2011, 100, 511, 511
  • Not Refereed, 日本気象学会 大会講演予講集, 日本気象学会, 近紫外衛星観測による、秋季日本近海におけるエアロゾルの解析, 久慈 誠; 近藤 優美; 林田 佐智子; 塩原 匡貴; 矢吹 正教; 原 圭一郎; 早坂 忠裕, Apr. 2006, 89, 117, 117
  • Not Refereed, 大会講演予講集, 日本気象学会, GLIセンサの紫外波長観測データを用いた黄砂の推定, 山中 のり子; 久慈 誠; 林田 佐智子; 安井 元昭; 内山 明博; 山崎 明宏, 15 May 2005, 87, 115, 115
  • Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, Retrieval of Asian dust amount over land using ADEOS-II / GLI near UV data, Makoto Kuji; Noriko Yamanaka; Sachiko Hayashida; Akihiro Yamazaki; Akihiro Uchiyama, We propose a retrieval method of Asian dust (Yellow sand or Kosa aerosol) columnar amount around source regions using a near ultraviolet radiometry observation from space. The method simultaneously retrieves an optical thickness and mode radius of Kosa aerosol, and then derives its columnar amount. The method was applied to ADEOS-II / GLI data in the spring of 2003 around Taklimakan desert source region, inland China. The retrieved optical thickness and mode radius were about 0.34 and 1.75 μm, respectively, at a validation site. They are comparable to the in situ observations conducted within the framework of ADEC project. The estimated columnar amount around a validation site is about 2.77 g m-2, which seems reasonable under a relatively calm situation. The method should be further validated with a regional model simulation study, and then it is useful to monitor Asian dust around source regions from space in the future., 2005, 5890, 1, 8
  • Not Refereed, 日本気象学会 大会講演予講集, 日本気象学会, C160 船上及び衛星観測による、秋季日本近海におけるヘイズの特徴(物質循環II), 久慈 誠; 近藤 優美; 林田 佐智子; 塩原 匡貴; 矢吹 正教, 2005, 88, 186, 186
  • Not Refereed, 大会講演予講集, 日本気象学会, 紫外域観測人工衛星データを用いた対流圏エアロゾルの推定と検証, 山中 のり子; 久慈 誠; 林田 佐智子; 安井 元昭; 内山 明博; 山崎 明宏; 青木 輝夫, 06 Oct. 2004, 86, 184, 184
  • Not Refereed, 地球環境研究総合推進費 平成14年度研究成果 中間成果報告集 1/全5分冊, Studies of clarification of ozone layer fluctuation mechanism using satellite data (3). Characteristic evaluation of polar stratopheric cloud and surface observation data for satellite data verification., 村山泰啓; 林田佐智子; 林政彦; 村田功, 2003, 70, 95
  • Not Refereed, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, Ozone photochemistry in the hartley band: Determination of the quantum yield for singlet oxygen atom production., K Takahashi; Y Matsumi; N Taniguchi; S Hayashida, Aug. 2002, 224, U323, U324, Summary international conference
  • Not Refereed, 地球環境研究総合推進費 平成13年度研究成果 中間成果報告集 1/全4分冊, Research on the elucidation of mechanism of ozone layer variations using satellite data. III. Evaluation of the properties of polar stratspheric cloud data obtained through ground observations for the purpose of verifying satellite data., 村山泰啓; 林田佐智子; 林政彦; 村田功, 2002, 22, 27
  • Not Refereed, 日本リモートセンシング学会誌, Message from the President, Sachiko Hayashida, Sep. 2020, 40, 4, 1, 1, Others
  • 大会講演予講集, 成層圏オゾンの光化学 : 高感度レーザー分光法を用いた室内実験と一次元光化学モデルによる研究, 高橋 けんし; 松見 豊; 谷口 のり; 林田 佐智子, 09 Oct. 2002, 82, 120, 120
  • 日本気象学会大会講演予稿集, 中国の農業残渣焼却が与える大気汚染への影響分析, 呂曉萍; 林田佐智子; 山地一代, 2018, 114
  • 日本気象学会大会講演予稿集, 中国中東部におけるオゾン増加:衛星観測とモデルシミュレーションの比較, 林田佐智子; 出牛真; 山地一代; 梶野瑞王; 関山剛; 眞木貴史, 2016, 109
  • 日本地球惑星科学連合大会予稿集(Web), 東アジアにおける下部対流圏オゾンの衛星観測とモデルシミュレーションの比較, 林田佐智子; 出牛真; 梶野瑞王; 山地一代; 関山剛; 眞木貴史, 2016, 2016
  • Refereed, 熱帯農業研究, Relationships among soil color, iron contents and methane production in south India, 犬伏和之; 谷道琢朗; 山本昭範; 小野圭介; 須藤重人; 林田佐智子; 齋藤尚子; AMBETHGAR V, 16 Mar. 2021, 14, Extra Issue 1, 35, 36
  • 熱帯農業研究, Effect of rice straw, biochar and nitrogen on greenhouse gases production in paddy soils in south India (part2), 瀬成桂太; 犬伏和之; 山本昭範; 小野圭介; 須藤重人; 林田佐智子; 齋藤尚子; AMBETHGAR V., 2020, 13, Extra Issue 1
  • 天気, 日本気象学会, Report on the Chapmann Conference on Climate, Volcanism and Global Change, March 23-26, Hawaii, Hilo, USA., HAYASHIDA Sachiko, 30 Nov. 1992, 39, 11, 665, 667
  • 大会講演予講集, 日本気象学会, P124 アジアにおけるメタン変動の研究 : NICAM-TM-CH_4モデルと衛星データとの比較(ポスター・セッション), 長瀬 友美; 林田 佐智子; 小野 朗子; 今須 良一; 丹羽 洋介, 2014, 106, 206, 206
  • 大会講演予講集, 日本気象学会, P192 中国華北域における一酸化炭素とオゾンの変動解析 : バイオマスバーニングとの関連研究(ポスター・セッション), 茅場 聡子; 林田 佐智子; 小野 朗子, 2014, 106, 274, 274
  • 大会講演予講集, 日本気象学会, A170 衛星観測データから得られた東南アジアのメタン変動 : バイオマスバーニングの影響検知について(スペシャル・セッション「大気微量気体およびエアロゾルの同化とその気候研究への利用」,口頭発表), 林田 佐智子; 石川 沙穂; 東 良美; 小野 朗子; 久慈 誠, 2012, 102, 81, 81
  • 大会講演予講集, 日本気象学会, A153 国際宇宙ステーションからの大気環境観測ミッションAPOLLO提案(スペシャル・セッション「大気微量気体およびエアロゾルの同化とその気候研究への利用」,口頭発表), 笠井 康子; 金谷 有剛; 谷本 浩志; 林田 佐智子; 入江 仁士; 野口 克行; 斉藤 尚子; 今須 良一; 林 洋司; 佐川 英夫; 佐藤 隆雄; 宮崎 和幸; 北 和之; APOLLO検討チーム, 2012, 102, 64, 64
  • 大会講演予講集, 日本気象学会, P361 SCIAMACHYセンサ・TANSO-FTSセンサで観測されるメタンの時空間的分布変動の研究(ポスター・セッション), 石川 沙穂; 林田 佐智子; 小野 朗子, 2012, 102, 535, 535
  • Not Refereed, Journal of the Japan society of photogrammetry and remote sensing, Japan Society of Photogrammetry and Remote Sensing, 何故学会が必要なのか, 佐智子 林田, 2020, 59, 5, 181, 181, Others
  • Not Refereed, 測量, ウィズコロナの時代の地球観測~衛星から人間活動が見える時代に~, 林田佐智子, Mar. 2021, 2021, 3, 4, 5
  • 大会講演予講集, 日本気象学会, P207 東アジア上空での大気オゾンの変動について(ポスターセッション), 林田 佐智子, 2015, 107, 238, 238
  • 天気, オゾン研究連絡会からの報告, 林田 佐智子, 31 Oct. 1992, 39, 10, 628, 628
  • 気象研究ノート, 日本気象学会, 大気化学 (地球観測の将来構想に関わる世界動向の分析), 笠井 康子; 林田 佐智子; 金谷 有剛; 北 和之; 入江 仁士; 齋藤 尚子; 今須 良一, Nov. 2017, 234, 39, 46
  • 宇宙からの地球環境・災害のモニタリングとリスク評価 : 生研フォーラム論文集 = Monitoring of Global Environment and Disaster Risk Assessment from Space : the IIS Forum proceedings, 東京大学生産技術研究所地球環境工学研究グループ, PPDF-S法で導出したGOSATのCO₂,CH₄濃度データの検証と特性解析, 岩﨑 千沙; 今須 良一; Bril Andrey; 横田 達也; 吉田 幸生; 森野 勇; 林田 佐智子; Oshchepkov Sergey, 02 Mar. 2017, 25, 81, 86
  • 大会講演予講集, 日本気象学会, P366 西シベリア上空のメタン高度分布と時系列の比較(ポスター・セッション), 杉田 考史; 斎藤 尚子; 林田 佐智子; 町田 敏暢; 笹川 基樹, 2015, 108, 446, 446
  • 大会講演予講集, 日本気象学会, A172 衛星と現地観測による大気メタンデータの活用 : 南アジアにおける新展開(温室効果気体研究の観測・測定技術の進展による新たな展開,スペシャル・セッション), 林田 佐智子; 久慈 誠; 寺尾 有希夫; 須藤 重人; 犬伏 和之; 間野 正美; 山本 昭範; Patra Prabir, 2015, 108, 122, 122
  • 大会講演予講集, 日本気象学会, D352 PPDF-S法によるGOSATのCO_2,CH_4気柱平均混合比データの検証(物質循環,一般口頭発表), 岩崎 千沙; 林田 佐智子; 今須 良一; 小野 朗子; 横田 達也; 森野 勇; 吉田 幸生; Sergey Oshchepkov; Andrey Bril; TCCON Partners, 2015, 108, 545, 545
  • 大会講演予講集, 日本気象学会, P172 SMILESによる極域無機塩素化合物の分配比(ポスター・セッション), 杉田 考史; 香川 晶子; 笠井 康子; 林田 佐智子; 寺尾 有希夫, 2010, 98, 409, 409
  • 大会講演予講集, 日本気象学会, C166 衛星観測データから得られたモンスーンアジア地域のメタン変動 : 水田からの発生との関連(スペシャル・セッション「温室効果ガス観測技術衛星GOSAT「いぶき」の利用研究」,口頭発表), 林田 佐智子; 吉崎 早苗; 久慈 誠, 2010, 98, 216, 216
  • 大会講演予講集, 日本気象学会, D352 東アジア付近の対流圏オゾン気柱量に見られる高濃度帯(E-TCO)の成因と季節変動の原因に関する研究(物質循環システム,口頭発表), 近藤 沙綾子; 永島 達也; 大原 利眞; 須藤 健悟; 秋元 肇; 林田 佐智子, 2010, 98, 321, 321
  • 大会講演予講集, 日本気象学会, P149 SCIAMACHYセンサが観測した大気中メタンデータの比較解析, 衛藤 聡美; 林田 佐智子; 吉崎 早苗; 有山 悠子; 町田 敏暢, 2009, 96, 381, 381
  • 大会講演予講集, 日本気象学会, P378 衛星観測による東南アジアにおけるバイオマスバーニングの研究 : 2.バイオマスバーニングに伴って発生する物質とエアロゾルの種類, 本多 祐美子; 久慈 誠; 林田 佐智子, 2009, 96, 504, 504
  • 大会講演予講集, 日本気象学会, P120 衛星観測による東南アジアにおけるバイオマスバーニングの研究 : 1.火災発生件数と大気微量成分との対応, 本多 祐美子; 野口 克行; 林田 佐智子, 2008, 94, 367, 367
  • 大会講演予講集, 日本気象学会, B109 OMIで観測された中国中央部における対流圏NO_2の時空間分布(微量気体・GOSAT), 柴崎 登紀子; 野口 克行; 伊藤 春奈; 林田 佐智子, 2008, 94, 117, 117
  • 大会講演予講集, 日本気象学会, B108 関東平野におけるGOME観測による対流圏NO_2と大気環境常時監視測定による地表NO_2の比較(微量気体・GOSAT), 伊藤 春奈; 野口 克行; 柴崎 登紀子; 林田 佐智子; 鵜野 伊津志; 大原 利眞; Richter Andress; Burrows John P., 2008, 94, 116, 116
  • 大会講演予講集, 日本気象学会, B204 リモートセンシングデータと直接サンプリングデータを用いた、黄砂観測時におけるエアロゾルの特徴(エアロゾル), 日比野 真弓; 久慈 誠; 井上 陽子; 林田 佐智子; 早坂 忠裕, 2008, 94, 150, 150
  • 大会講演予講集, 日本気象学会, P314 人工衛星による対流圏NO_2観測と大気環境常時監視局による地表NO_2観測との比較, 伊藤 春奈; 野口 克行; 柴崎 登紀子; 林田 佐智子; 鵜野 伊津志; Richter Andreas; Burrows John P., 2007, 92, 459, 459
  • 大会講演予講集, 日本気象学会, P114 OMIセンサで得られた対流圏NO_2気柱量の初期解析結果, 柴崎 登紀子; 野口 克行; 伊藤 春奈; 林田 佐智子; Richter Andreas; Burrows John P., 2007, 92, 366, 366
  • 大会講演予講集, 日本気象学会, P111 流跡線解析ツールSPIRALの開発と対流圏オゾン解析への応用, 川岸 諒子; 林田 佐智子; 野口 克行, 2007, 92, 363, 363
  • 大会講演予講集, 日本気象学会, D253 オゾンゾンデ観測から得られた対流圏オゾンの解析 : 空気塊分類に基づく解析結果(微量気体), 川岸 諒子; 川添 夕子; 林田 佐智子; 野口 克行, 2007, 92, 306, 306
  • 大会講演予講集, 日本気象学会, D256 ILAS-IIによって観測された南極成層圏のPSCによる一時的な脱窒(微量気体), 杉田 考史; 齋藤 尚子; 林田 佐智子; 今村 隆史; 佐伯 浩介; 中島 英彰, 2007, 92, 309, 309
  • 日本気象学会大会講演予稿集(CD-ROM), ニューデリーの大気質におけるパンジャブ野焼きとエアロゾル放射相互作用の影響, 梶野瑞王; 梶野瑞王; CHING Joseph; 山地一代; MISRA Prakhar; 石川里桜; 滝川雅之; PATRA Prabir; 林田佐智子; 林田佐智子, 2021, 119
  • 生研フォーラム論文集 宇宙からの地球環境・災害のモニタリングとリスク評価, COVID-19 lockdown impacts on NOx emission: top-down estimation over North India, MISRA Prakhar; TAKIGAWA Masayuki; KHATRI Pradeep; DHAKA S.K.; DIMRI A.P.; YAMAJI Kazuyo; KAJINO Mizuo; TAKEUCHI Wataru; IMASU Ryoichi; NITTA Kaho; PATRA Prabir K.; HAYASHIDA Sachiko; HAYASHIDA Sachiko, 2021, 29th
  • 大会講演予講集, 日本気象学会, P118 東アジア付近の対流圏カラムオゾン高濃度帯の成因と季節変化の原因に関する研究(ポスターセッション), 近藤 沙綾子; 永島 達也; 大原 利眞; 須藤 健悟; 秋元 肇; 中谷 彩; 林田 佐智子, 2010, 97, 235, 235
  • 大会講演予講集, 日本気象学会, P108 衛星観測データと化学気候モデルを用いた東アジア域からの窒素酸化物の長距離輸送の事例解析, 柴崎 登紀子; 野口 克行; 林田 佐智子; 須藤 健悟; Richter Andreas; Burrows John P.; 太田 絵美, 2006, 90, 266, 266
  • 大会講演予講集, 日本気象学会, P307 ライダー観測データ解析による東アジア域のエアロゾルの研究, 久慈 誠; 日比野 真弓; 林田 佐智子; 佐竹 晋輔; 早坂 忠裕, 2006, 90, 355, 355
  • 大会講演予講集, 日本気象学会, P308 衛星及び地表観測で得られた日本におけるNO_2季節変化の数値モデルによる比較, 伊藤 春奈; 野口 克行; 林田 佐智子; 鵜野 伊津志; Richter Andreas; Burrows John P., 2006, 90, 356, 356
  • 大会講演予講集, 日本気象学会, P357 衛星観測で得られた対流圏オゾンデータの検証, 瓜田 直美; 太田 絵美; 野口 克行; 林田 佐智子; Ziemke Jerry R.; Liu Xiong; Chance Kelly, 2005, 88, 450, 450
  • 大会講演予講集, 日本気象学会, P157 GOMEのデータを用いた対流圏NO_2分布の解析 : 発生源からの輸送に着目して, 太田 絵美; 瓜田 直美; 野口 克行; 林田 佐智子; Richter Andreas; Burrows John P., 2005, 88, 354, 354
  • 大会講演予講集, 日本気象学会, C304 ILASデータを用いたトレーサー解析 : 脱窒・脱水の推定(物質循環III), 戸田 庸子; 池田 奈生; 林田 佐智子; 杉田 考史; 中島 英彰; 入江 仁士; 笹野 泰弘, 2005, 88, 208, 208
  • 大会講演予講集, 日本気象学会, B310 SAGE IIデータを用いた成層圏エアロゾルの解析 : 季節変動および準2年周期振動(物質循環III), 庭野 将徳; 古谷 望; 秋吉 英治; 林田 佐智子, 2005, 87, 138, 138
  • 大会講演予講集, 日本気象学会, P333 ILAS-IIエアロゾル消散係数V1.4データ質評価, 齊藤 尚子; 杉田 考史; 中島 英彰; 横田 達也; 笹野 泰弘; 林田 佐智子; 林 政彦; 白石 浩一; 神沢 博, 2004, 86, 496, 496
  • 大会講演予講集, 日本気象学会, C117 ClONO_2/ILASとHCl/HALOEの解析に基づく極域成層圏における塩素化学種分配とCl_y推定(物質循環I), 林田 佐智子; 池田 奈生; 戸田 庸子; 入江 仁士; 中島 英彰, 2004, 86, 215, 215
  • 大会講演予講集, 日本気象学会, P381 成層圏NOの生成効率に関する新しい知見 : O(^1D)+N_2O反応の生成物分岐比, 高橋 けんし; 西田 哲; 松見 豊; 谷口 のり; 林田 佐智子, 2004, 85, 469, 469
  • 大会講演予講集, 日本気象学会, P274 ILAS-IIエアロゾル消散係数データ質評価, 齋藤 尚子; 中島 英彰; 横田 達也; 杉田 考史; 林田 佐智子, 2004, 85, 379, 379
  • 大会講演予講集, 日本気象学会, D168 GOSAT TANSO-FTS熱赤外チャンネルから導出されたメタン濃度とAIRSおよびCONTRAILの比較解析(微量気体,一般口頭発表), 那須 侑子; 東野 美和; 斎藤 尚子; 林田 佐智子; 今須 良一; 塩見 慶; 町田 敏暢; 松枝 秀和, 2011, 100, 312, 312
  • 大会講演予講集, 日本気象学会, P362 東アジアにおける対流圏オゾン気柱量の起源分類 : タグ付きトレーサー実験に基づく対流圏内の領域別解析(ポスター・セッション), 高倉 典子; 永島 達也; 須藤 健悟; 林田 佐智子, 2011, 100, 506, 506
  • 大会講演予講集, 日本気象学会, P168 TANSO-FTS近赤外チャンネルで観測されたメタン気柱平均濃度の検証解析(ポスター・セッション), 東野 美和; 那須 侑子; 林田 佐智子; 齋藤 尚子; 横田 達也; 吉田 幸生; 町田 敏暢; 松枝 秀和; 今須 良一; 塩見 慶, 2011, 100, 417, 417
  • Annual report of Graduate Division of Human Culture, Nara Women's University, A technical mote on a simulation model for polar ozone destruction, Ikeda Nao; Hayashida Sachiko, Stratospheric ozone destruction by anthropogenic chemical substances is well known as one of the serious global environmental problems. In the Polar Regions, significant chemical ozone destruction has been observed. The understanding of chemically induced ozone loss in the polar stratosphere has increased significantly over the past decade. However, quantitative estimatesof ozone loss remain uncertain. Especially in the Arctic, chemical conditions in the winter stratosphere highly depend on dynamic processes; thus, it is difficult to estimate the amount of chemical ozone destruction quantitatively. Therefore, a detailed study on chemical ozone destructionprocesses is required.We constructed a simulation model of polar ozone destruction processes using a chemical box model combined with a trajectory tool. The chemical box model includes the sufficient number of chemical reactions in order to explain the chemical processes in winter polar region. It also includes the TUV (Thopospheric Ultraviolet and Visible Radiation Model) to calculatemultiple scattering of solar ultraviolet flux, which is important for simulatingradical species that are sensitive to ultraviolet intensity. The chemical boxmodel is run along the trajectories to obtain the mixing ratios of the chemicalspecies.The simulation model reproduced ozone destruction processes in winter polar region successfully. This report describes the details of the simulation model and demonstrates its validity for ozone studies., 31 Mar. 2007, 22, 329, 344
  • 天気, 日本気象学会, Report on the Quadrennial Ozone Symposium 2004., SHIBASAKI Kazuo; NAKANE Hideaki; HAYASHIDA Sachiko; IWAO Koki; HAN Jianyu; MIYAGAWA Koji; MIYAZAKI Kazuyuki; KITA Kazuyuki; KAGAWA Akiko, 2004, 51, 12, 901, 910
  • 大会講演予講集, 日本気象学会, D154 紫外域衛星センサーによる対流圏エアロゾル光学特性導出手法 : 直接法の適用(観測手法), 芝田 由香里; 蒲生 京佳; 山中 のり子; 林田 佐智子, 2003, 84, 253, 253
  • 天気, 日本気象学会, Study on Stratospheric Aerosol and ozone with Optical Remote Sensing : Memorial lecture of Horiuchi Award in 2002, Hayashida Sachiko, 2003, 50, 6, 415, 423
  • 大会講演予講集, 日本気象学会, A352 極域オゾン破壊におけるCIONO_2の果たす役割(衛星からの大気観測 : 日本の貢献と将来展望II), 林田 佐智子; 池田 奈生; 戸田 庸子; 中島 英彰, 2003, 84, 75, 75
  • 天気, 3. 大気科学研究における衛星データ利用について : 大気微量成分観測(第1回地球観測衛星研究連絡会の報告), 林田 佐智子, 2005, 52, 8, 640, 641
  • 気象集誌, 日本気象学会, エル・チチョン火山噴火後の成層圏エアロゾル量の変動--名古屋におけるライダ-観測〔英文〕, 林田 佐智子; 岩坂 泰信, Jun. 1985, 63, 3, p465, 473
  • IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Estimation of the surface area density of Polar Stratospheric Clouds by using the Support Vector Machines, IKEDA NAO; ASHIDA NAOMI; HAYASHIDA SACHIKO, Chemical ozone destruction occurs at around 20km altitude in the Arctic winter, and the amount of ozone loss depends on the surface area density of Polar Stratospheric Clouds (PSC) which appear at the tempretures below -78℃. However, there are not enough observations for PSCs, and it is difficult to estimate PSC surface on numerical simulations because the change of the temperature leads the large error in the estimation. In this study, we estimate the surface area density of PSC using satellite data and a chemical box model. Then we build a estimation system of the PSC surface area by using the Support Vector Machines., 15 Sep. 2006, 2006, 95, 37, 40
  • 大会講演予講集, ODUSによる対流圏粒子、SO_2観測可能性の検討, 渡辺 征春; 鈴木 睦; 柴崎 和夫; 佐野 琢己; 小川 利紘; 林田 佐智子; 蒲生 京佳; 久世 暁彦; 川島 高弘, 10 Oct. 2001, 80, 310, 310
  • 大会講演予講集, ILAS及びライダーデータを用いた極域成層圏雲の解析, 雨宮 百合子; 林田 佐智子; 林 政彦; 白石 浩一; 柴田 隆; 岩坂 泰信; 山内 恭; 平沢 尚彦; 笹野 泰弘, 10 Oct. 2001, 80, 375, 375
  • 大会講演予講集, ILASを用いた成層圏大気中微量成分の解析 : II. OHの見積り, 濱村 翠; 香川 晶子; 林田 佐智子; 笹野 泰弘, 10 Oct. 2001, 80, 187, 187
  • 大会講演予講集, 流跡線解析を用いた極成層圏雲の化学組成の考察, 齋藤 尚子; 林田 佐智子; 笹野 泰弘, 10 Oct. 2001, 80, 189, 189
  • 大会講演予講集, ILASを用いた成層圏大気中微量成分の解析 : I. 硝酸と二酸化窒素の比について, 濱村 翠; 香川 晶子; 林田 佐智子; 笹野 泰弘, 08 May 2001, 79, 332, 332
  • 大会講演予講集, 97年冬季南極で観測された極成層圏雲の特徴について, 齋藤 尚子; 林田 佐智子; 笹野 泰弘, 09 Oct. 2002, 82, 114, 114
  • 大会講演予講集, 紫外域観測センサーを用いた対流圏エアロゾル観測手法の検討, 蒲生 京佳; 芝田 由香里; 林田 佐智子, 09 Oct. 2002, 82, 112, 112
  • 大会講演予講集, ILASがとらえた1996/97年冬季北極域PSCの特徴と空間分布, 齋藤 尚子; 林田 佐智子; 中島 英彰; 笹野 泰弘, Oct. 1998, 74, C153
  • 大会講演予講集, ILASで観測されたエアロゾル消散係数の解析(1), 林田 佐智子; 斉藤 尚子; 中川 理恵; 上杉 清子; 田中 愛; 横田 達也; 鈴木 睦; 神沢 博; 笹野 泰弘, Oct. 1997, 72, D106
  • 大会講演予講集, ILASで観測された両極域PSCの解析 -判定条件の検討と気温履歴について-, 齋藤 尚子; 林田 佐智子; 中島 英彰; 笹野 泰弘, Apr. 1999, 75, P109
  • 大会講演予講集, ILASで観測された1996/97年北半球冬期間極域での窒素酸化物の挙動, および赤外波長域エアロゾル/PSC消散係数スペクトルの特徴, 中島 英彰; 笹野 泰弘; 林田 佐智子; 岡本 創; 石原 博成, May 1998, 73, 101, 101
  • 大会講演予講集, 1996/97年冬季にILASで観測された北極上空のPSCの解析, 林田 佐智子; 斉藤 尚子; 中川 理恵; 中島 英彰; 笹野 泰弘, May 1998, 73, 282, 282
  • 学術講演会論文集 = Proceedings of the ... Japanese Conference on Remote Sensing, On the Wavelength Dependence of the Extinction Coefficient for the Stratospheric Aerosols Observed with SAGEII, HAYASHIDA Sachiko; NISHIMURA Aki, 01 May 1997, 22, 11, 12
  • 大会講演予講集, ILASで観測された北極域PSCsの組成について, 齋藤 尚子; 林田 佐智子; 笹野 泰弘, 24 May 2000, 77, 140, 140
  • 大会講演予講集, 1996/1997年冬季北極域PSCsの化学組成, 齋藤 尚子; 林田 佐智子; 笹野 泰弘, 18 Oct. 2000, 78, 135, 135
  • 大会講演予講集, 日本気象学会, P374 東アジア域の対流圏オゾンのMOZAICデータ解析(ポスター・セッション), 潮平 佳世子; 林田 佐智子, 2010, 98, 510, 510
  • 大会講演予講集, 日本気象学会, D353 衛星で観測された対流圏オゾン気柱量の変動解析 : 対流圏オゾン高濃度域とジェット気流との関係(物質循環システム,口頭発表), 中谷 彩; 林田 佐智子, 2010, 98, 322, 322
  • 大会講演予講集, 日本気象学会, P346 衛星で観測された対流圏オゾン気柱量の変動解析, 中谷 彩; 林田 佐智子, 2009, 96, 472, 472
  • 大会講演予講集, 日本気象学会, P349 光化学ボックスモデルによる1997年冬季北極域でのClONO_2の再現実験, 池田 奈生; 戸田 庸子; 林田 佐智子, 2005, 88, 442, 442
  • 大会講演予講集, 1997年冬季ドームふじ上空で観測された極域成層圏雲, 雨宮 百合子; 林田 佐智子; 林 政彦; 白石 浩一; 柴田 隆; 岩坂 泰信; 山内 恭; 平沢 尚彦, 09 Oct. 2002, 82, 115, 115
  • 天気, 競争力のある気象学会の発展を目指して : 大会運営と講演記録集出版への提言 (2.評議員の発言要旨), 林田 佐智子, 2001, 48, 6, 420, 421
  • 情報処理学会研究報告数理モデル化と問題解決(MPS), The present status of Chemical Transport Model -An approach to global environmental problems-, 林田 佐智子, 最近開発が進んでいる地球規模大気化学輸送モデルは、地球大気中の微量成分の動態をシミュレートし、人間活動が地球システムに与える影響を評価することができる。この講演では化学輸送モデルの現状と将来の見通しについてレビューする。Global chemical transport models(CTM) are being developed to simulate the distribution and the evolution of trace constituents in the Earth atmosphere and to evaluate the impact of the human activities on the Earth system. The present status and future prospect of CTM wi11 be reviewed., 21 Nov. 2000, 2000, 108, 29, 32
  • 大会講演予講集, 成層圏光化学ボックスモデルで再現した1997年冬期北極域オゾン減少 : ILASによる観測結果との比較, 香川 晶子; 林田 佐智子, 18 Oct. 2000, 78, 28, 28
  • 地球環境, 日本工業新聞社, 衛星観測がオゾンホールの発生メカニズムを解明 (特集 宇宙から見た地球環境), 林田 佐智子, Nov. 1999, 30, 11, 10, 13
  • 大会講演予講集, SAMIIおよびSAGEIIで観測された成層圏エアロゾル消散係数の解析, 林田 佐智子; 西村 亜紀; 栗原 尚子; 山口 晶子, May 1997, 71, 75, 75
  • 大会講演予講集, SAGEIIデータに見られるエアロゾルと微量成分変化の対応について, 林田 佐智子; 西村 亜紀, 06 Nov. 1996, 70, 279, 279
  • 大会講演予講集, 人工衛星データを用いた成層圏エアロゾルの光学的パラメータの解析(2), 西村 亜紀; 林田 佐智子, 06 Nov. 1996, 70, 278, 278
  • 大会講演予講集, 人工衛星データを用いた成層圏エアロゾルの光学的パラメータの解析(1), 林田 佐智子; 西村 亜紀; 馬場 明子, 16 Oct. 1995, 68, 229, 229
  • 気象集誌, 日本気象学会, 成層圏エ-ロゾルの偏光におよぼすSt.Helens噴火の影響〔英文〕, 岩坂 泰信; 林田 佐智子, Aug. 1981, 59, 4, p611, 614

Books etc

  • Chapter 13, Study of lower tropospheric ozone over central and eastern China: Comparison of satellite observation with model simulation., K.P. Vadrevu, et al. (ed.),Land-Atmospheric Research Applications in South and Southeast Asia, Springer, Hayashida S; S.Kayaba; M.Deushi; K.Yamaji; A.Ono; M. Kajino; T.T. Sekiyama; T. Maki; X. Liu, 筆頭著者, 2018, 255-275, Not Refereed, 9783319674735
  • 気象研究ノート「地球観測の将来構想に関わる世界動向の分析」, 日本気象学会, HAYASHIDA Sachiko, 分担, May 2017, Not Refereed
  • GOSAT/TANSO Progress Report/Interim Report, HAYASHIDA Sachiko, 筆頭著者, Dec. 2015, Not Refereed
  • 地球環境学事典, 弘文堂, HAYASHIDA Sachiko, 分担, Oct. 2010, 504-505, Not Refereed
  • 衛星からの大気環境監視, 宇宙開発事業団衛星総合システム本部 地球観測利用研究センター編纂, 林田佐智子, エアロゾル観測, 2003, 78-87
  • 大気水圏科学から見た地球温暖化, 名古屋大学出版会, HAYASHIDA Sachiko, 分担, 1996, 179-193頁, Not Refereed
  • 地球環境工学ハンドブック, オーム社, HAYASHIDA Sachiko, 分担, 1991, 582-589頁, Not Refereed
  • フロンの環境化学と対策技術, Kikan Kagaku Sosetsu, HAYASHIDA Sachiko, 分担, 1991, 第11巻37-60頁, Not Refereed
  • Mechanism of ozone depletion, 中央法規出版, HAYASHIDA Sachiko, 分担, 1990, 44-64頁, Not Refereed
  • 地球温暖化問題ハンドブック, アイピーシー, HAYASHIDA Sachiko, 分担, 1990, 509-513, Not Refereed

Presentations

  • Hayashida, S; P. Misra; K. Nitta; T. H. Nguyen; P. K. Patra; M. Takigawa; P. Khatri; S. K. Dhaka; A. P. Dimri; K. Yamaji; M. Kajino; W. Takeuchi, AGU fall meeting 2020, Reduction of air pollutants over North-West India observed from space during the Covid-19 lockdown period, 07 Dec. 2020, Dec. 2020, Dec. 2020, rm:research_project_id
  • Senari, K; K.Inubushi; A.Yamamoto; K.Ono; S.Sudo; S.Hayashida; N.Saitoh; V. Ambethgar, 127th Annual Meeting of the Japanese Society for Tropical Agriculture, 南インド水田土壌中の温室効果ガス生成に及ぼす稲わら、生物炭、窒素添加の影響(第2報), Mar. 2020, 17 Mar. 2020, 18 Mar. 2020, rm:research_project_id
  • Kaho Nitta; Sachiko Hayashida, The 67th Conference of the Remote Sensing Society of Japan, TROPOMIで観測されたインド上空の二酸化窒素の解析, Nov. 2019, 28 Nov. 2019, 29 Nov. 2019, rm:research_project_id
  • HAYASHIDA Sachiko, the 4th World Association of Soil and Water Conservation (WASWAC) Conference, Aakash Project : Challenge toward Clean Air, Public Health and Sustainable Agriculture., Nov. 2019, 05 Nov. 2019, 09 Nov. 2019, rm:research_project_id
  • HAYASHIDA Sachiko, 第24回大気化学討論会, 中国の農業残渣焼却がNOx放出量に与える影響分析, Nov. 2019, 05 Nov. 2019, 07 Nov. 2019
  • HAYASHIDA Sachiko, 日本気象学会2019年度秋季大会, インド北部におけるレーザメタン計観測結果の解析, Oct. 2019, 28 Oct. 2019, 31 Oct. 2019, rm:research_project_id
  • HAYASHIDA Sachiko, 日本気象学会2019年度秋季大会, 西シベリアの成層圏メタン高度分布の推定, Oct. 2019, 28 Oct. 2019, 31 Oct. 2019
  • S Hayashida, 日本気象学会2019年度秋季大会, 北インドにおけるメタン発生と輸送:衛星観測と地上観測からの一考察, Oct. 2019, 28 Oct. 2019, 31 Oct. 2019, rm:research_project_id
  • HAYASHIDA Sachiko, 日本気象学会2019年度秋季大会, 那覇で観測された対流圏オゾンの増大現象について, Oct. 2019, 28 Oct. 2019, 31 Oct. 2019, 日本気象学会, 仙台国際センター, False
  • 松見 豊; 中山 智喜; 山崎 高幸; 岡本 渉; 関口和彦; 林田佐智子; 川崎昌博; 内藤大輔; 甲山 治, 第60回大気環境学会年会, 開発した小型 PM2.5 計測器のアジア各国での観測結果: ベトナム、インド、インドネシア、モンゴル、マレーシアなど, Sep. 2019, 18 Sep. 2019, 20 Sep. 2019, rm:research_project_id
  • S Hayashida; Y. Matsumi; K. Yamaji; M. Kajino; P. K. Patra; Aakash project members, 4th Atmospheric Composition and the Asian Monsoon(ACAM) Workshop, New project “Aakash” aiming at reduction of crop-residue burning in North India: interdisciplinary approach toward clean air, public health and sustainable agriculture, Jun. 2019, 26 Jun. 2019, 28 Jun. 2019, rm:research_project_id
  • HAYASHIDA Sachiko, 日本気象学会2018年度秋季大会, 中国の農業残渣焼却が与える大気汚染への影響分析, Nov. 2018, 日本気象学会, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本気象学会2018年度秋季大会, GOSAT-2 と地上観測による全球のメタン放出量推定と 評価手法の包括的研究(その 1), Nov. 2018, 日本気象学会, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本気象学会2018年度秋季大会, 衛星観測により対流圏下部オゾンに対する前駆物質排出量削減の効果は検出できるのか, Nov. 2018, 日本気象学会, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本気象学会2018年度秋季大会, 北インドで観測されるメタン季節変動の解析, Oct. 2018, 日本気象学会, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本気象学会2018年度秋季大会, 西シベリア上空 100 hPa の成層圏メタンの季節変動(その 2), Oct. 2018, 日本気象学会, 仙台国際センター, False
  • Yamaji. K; X. Lu; S. Hayashida, 2018 joint iCACGP Symposium and IGAC Science Conference, Recent trend of atmospheric emissions due to open crop residue burning in the central east China, Sep. 2018, ICACGP/IGAC, “Sunport Takamatsu” Convention Center, True
  • S Hayashida; Y. Terao; P. K. Patra; Y. Matsumi; R. Imasu; S. Nomura; S. Dhaka; Jagmohan; S. Sharma, 2018 joint iCACGP Symposium and IGAC Science Conference, Seasonal variation of surface methane observed in North India: An investigation on the contributions of emissions and transport, Sep. 2018, ICACGP/IGAC, “Sunport Takamatsu” Convention Center, True
  • Aung Zaw Oo; Shigeto Sudo; Kazuyuki Inubushi; Masayoshi Mano; Akinori Yamamoto; Keitsuke Ono; Takeshi Osawa; Sachiko Hayashida; P. Elayakumar; V. Ravi, Japanese Society of Soil Science and Plant Nutrition2018, Early season water management strategies mitigate methane and yield-scaled CO2-eq emission from paddy rice soil: Emissions from double rice seasons, Aug. 2018, 日本大学生物資源科学部, False
  • HAYASHIDA Sachiko, 環境研究総合推進費戦略研究プロジェクトS-12 第4回公開シンポジウム, 南アジアから放出されるメタンの挙動研究~2-1502 AMASAプロジェクトの成果から~」, Jan. 2018, 環境研究総合推進費戦略研究プロジェクトS-12, 京都大学百周年時計台記念館 国際交流ホール, False
  • S Hayashida, Enviro-Health Conference 2017 - Air Pollution & Future Strategies with a Focus on the NCT of Delhi, A new project plan on air quality in Delhi ~ a proposal from Japan~, Nov. 2017, Delhi, True
  • HAYASHIDA Sachiko, 第23回大気化学討論会, 中国で観測されたオゾン時空間分布のクラスター解析, Oct. 2017, 高松, False
  • S Hayashida, Indian Association of Physics Teachers (IAPT), Climate Change and Introduction to project of Atmospheric Methane from Agriculture in South Asia (AMASA), Oct. 2017, Gurukula Kangri ANGRI Univ.,Haridwar,, True
  • S Hayashida, Asia Oceania Geosciences Society, 14th Annual Meeting, Origin of the seasonal cycle of columnar methane observed by GOSAT over South Asia, Aug. 2017, Singapore, True
  • S Hayashida; N. Chandra; P. K. Patra; N. Saitoh; Y. Kasai, Asia Oceania Geosciences Society, 14th Annual Meeting, Toward vertical profiling of atmospheric species from space: Recent advances and future prospect, Aug. 2017, Singapore, True
  • S Hayashida; N. Chandra; T. Saeki; P. K. Patra, the 2017 Joint IAPSO-IAMAS-IAGA Assembly, Origin of the seasonal cycle of columnar methane observed by GOSAT over South Asia, Aug. 2017, Cape Town, South Africa, True
  • S Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu, the 2017 Joint IAPSO-IAMAS-IAGA Assembly, Clustering of seasonality of the lower tropospheric ozone over central China observed by Ozone Monitoring Instrument (OMI), Aug. 2017, Cape Town, South Africa, True
  • P. K. Patra; S. Nomura; Y. Terao; N. Chandra; S. Hayashida, 3rd ACAM Workshop, Variabilities in greenhouse gases in South Asia due to monsoon, Jun. 2017, Guangzhou, China, True
  • Chandra, N; S. Hayashida; T. Saeki; P. K. Patra, 3rd ACAM Workshop, What control seasonal cycle of columnar methane observed by GOSAT over different regions in India?, Jun. 2017, Guangzhou, China, True
  • S Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu, 3rd ACAM Workshop, Enhancement of the lower tropospheric ozone over China: Comparison of Ozone Monitoring Instrument (OMI) and model simulations, Jun. 2017, Guangzhou, China, True
  • S. Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu, JpGU-AGU joint meeting 2017, Outstanding seasonality of the lower tropospheric ozone over central China observed by Ozone Monitoring Instrument (OMI), May 2017, Makuhari, Japan, True
  • N. Chandra; S. Hayashida; T. Saeki; P. K. Patra, JpGU-AGU joint meeting 2017, What controls the seasonal cycle of columnar methane observed by GOSAT over different regions in India?, May 2017, True
  • S.Hayashida; N. Chandra; P. K. Patra; Y. Terao; S. Sudo; K. Inubushi; M. Mano; A. Yamamoto; AMASA project team, JpGU-AGU joint meeting 2017, Methane emission estimate from South Asia: AMASA project, May 2017, True
  • HAYASHIDA Sachiko, 日本熱帯農業学会第121回講演会, 南インド水田における温室効果ガスの動態とその影響因子, Mar. 2017
  • HAYASHIDA Sachiko, 日本農業気象学会2017年全国大会, インドの水田における温室効果ガスフラックスの測定, Mar. 2017
  • K.Inubushi; P.Patra; S.Hayashida; AMASA members, 7th ISAJ Symposium, Sustainable Paddy Rice Farming Harmonized With Greenhouse Gas Emission/From AMASA Project In India, Dec. 2016
  • S Hayashida, Seminar at Physical Research Laboratory, Project of Atmospheric Methane from Agriculture in South Asia (AMASA), Nov. 2016, Physical Research Laboratory, Ahmedabard, India, True
  • S Hayashida, Aryabhatta Research Institute of Observational Sciences (ARIES) seminor, Introduction of our recent activities to improve methane emission estimate in South Asia: Project of Atmospheric Methane from Agriculture in South Asia (AMASA), Nov. 2016, True
  • S Hayashida, GEMS Science Meeting, Comparison of OMI Observation with Model Simulations to Study Lower Tropospheric Ozone Enhancement Over Central and Eastern China, Oct. 2016, Yonsei University, Souel, Korea, True
  • HAYASHIDA Sachiko, 日本気象学会2016年度秋季大会, 実大気における連続観測を目的としたオープンパスレーザー分光メタン検出器の校正, Oct. 2016
  • HAYASHIDA Sachiko, 日本気象学会2016年度秋季大会, 西シベリア上空のGOSAT(熱赤外バンド)と航空機観測によるメタンの比較, Oct. 2016
  • HAYASHIDA Sachiko, GOSAT専門家会議, GOSATのメタン観測について, Sep. 2016, 国立環境研究所/JAXA, 東京, False
  • Sachiko Hayashida; Makoto Deushi; Kazuyo Yamaji; Mizuo Kajino; Tsuyoshi Thomas Sekiyam; Takashi Maki; Xiong Liu, IGAC2016, Satellite measurement of the lower tropospheric ozone enhancement over East Asia - elimination of the effect from the upper troposphere and lower stratosphere, Sep. 2016, Breckenridge, USA, True
  • HAYASHIDA Sachiko, 2016年度日本土壌肥料学会佐賀大会, 南部インド水田地帯における大気メタン連続観測, Sep. 2016
  • T.Sugita; N.Saitoh; S.Hayashida; T.Machida, The 8th GOSAT RA PI Meeting, Comparison of methane profiles between GOSAT/TANSO-FTS TIR and aircraft measurements in West Siberia, Jun. 2016
  • S.Hayashida; P.K.Patra; Y.Terao; AMASA project team, The 8th GOSAT RA PI Meeting, Comparison of GOSAT CH4 measurements with in-situ measurements and model simulations, Jun. 2016
  • C.Iwasaki; R.Imasu; S.Hayashida; T.Yokota; I.Morino; Y.Yoshida; S.Oshchepkov; A.Bril; TCCON Partners, 12th International Workshop on Greenhouse Gas Measurements from Space(IWGGMS-12), Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method, Jun. 2016, True
  • S.Hayashida; P.K.Patra; Y.Terao (C; AMASA project team), 12th International Workshop on Greenhouse Gas Measurements from Space(IWGGMS-12), Comparison of GOSAT CH4 measurements with in-situ measurements and model simulations - Applications of GOSAT CH4 data to Agricultural CH4 emission in Asia -, Jun. 2016
  • S.Hayashida; A.Ono, Japan Geoscience Union MEETING 2016, Proportion of atmospheric methane to carbon dioxide observed by GOSAT over biomass burning regions in Africa, May 2016
  • HAYASHIDA Sachiko, 日本気象学会2016年度春季大会, 中国中東部におけるオゾン増加:衛星観測とモデルシミュレーションの比較, May 2016, 国立オリンピック記念青少年総合センター, False
  • C. Iwasaki; S. Hayashida; R. Imasu; T. Yokota; I. Morino; Y. Yoshida, Japan Geoscience Union MEETING 2016, Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method, May 2016, False
  • HAYASHIDA Sachiko, Japan Geoscience Union MEETING 2016, 東アジアにおける下部対流圏オゾンの衛星観測とモデルシミュレーションの比較, May 2016, False
  • HAYASHIDA Sachiko, 第24回 生研フォーラム, アフリカにおけるGOSAT で観測されたメタンと二酸化炭素の比率, Mar. 2016, 東京大学生産科学研究所, 東京, False
  • HAYASHIDA Sachiko, 第24回 生研フォーラム, カゲ指数を用いた樹高の見積もり, Mar. 2016, 東京大学生産科学研究所, 東京, False
  • C. Iwasaki; S. Hayashida; R. Imasu; A. Ono; T. Yokota; I. Morino; Y. Yoshida; O. Sergey; B. Andrey; TCCON Partners, 2015 AGU Fall Meeting, Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method., Dec. 2015, American Geophysical Union, San Francisco, True
  • S. Hayashida; A. Ono; S. Kayaba; M. Kajino; M. Deushi; T. Maki; T. Sekiyama; K. Yamaji; X. Liu, 2015 AGU Fall Meeting, Ozone Enhancement in the Lower Troposphere over Central and Eastern China as Observed from the space, Dec. 2015, American Geophysical Union, San Francisco, True
  • HAYASHIDA Sachiko, 環境研究総合推進費[2-1502] 「GOSAT 等を応用した南アジア域におけるメタンの放出量推定の精緻化と 削減手法の評価」平成27年度アドバイザリーボード会合, GOSATメタンデータ利用方法の検討状況について, Nov. 2015, 奈良女子大学(研究代表者), 奈良女子大学, False
  • S.Hayashida; A.Ono; S.Kayaba; M.Kajino; M. Deushi; T.Maki; T.Sekiyama; K.Yamaji; X.Liu; K.Chance, The 6th GEMS Science Team Meeting, Ozone Enhancement in the Lower Troposphere over Central and Eastern China Observed from OMI:Comparison with Emission Inventries, Ground-based Measurements, and Model simulations., Oct. 2015, GEMS Science Team, Busan, Korea, True
  • HAYASHIDA Sachiko, 第21回大気化学討論会, 実大気におけるリアルタイムその場観測を目的としたオープンパスレーザー分光メタンガス検出器の校正, Oct. 2015, 日本大気化学会, 東京工業大学, False
  • 茅場聡子; 林田佐智子; 小野朗子; 出牛真; 梶野瑞王; 関山剛; 眞木貴史; 山地一代, 第21回大気化学討論会, 東アジアにおける大気微量成分の衛星観測結果とモデルシミュレーションの比較, Oct. 2015, 日本大気化学会, 東京工業大学, False
  • 茅場聡子; 林田佐智子; 小野朗子; 出牛真; 梶野瑞王; 関山剛; 眞木貴史; 山地一代, 気象学会2015年度秋季大会, 東アジアにおける大気微量成分の衛星観測結果とモデルシミュレーションの比較, Oct. 2015, 日本気象学会, 京都テルサ, False
  • HAYASHIDA Sachiko, 気象学会2015年度秋季大会, 2005年春における中国から日本へのオゾン越境汚染について~高度別の起源推定・FLEXPARTでの後方流跡線解析~, Oct. 2015, 日本気象学会, 京都テルサ
  • HAYASHIDA Sachiko, 気象学会2015年度秋季大会, PPDF-S法によるGOSATのCO2,CH4気柱平均混合比データの検証, Oct. 2015, 日本気象学会, False
  • HAYASHIDA Sachiko, 気象学会2015年度秋季大会, 衛星と現地観測による大気メタンデータの活用?南アジアにおける新展開?, Oct. 2015, 日本気象学会, 京都テルサ, False
  • Sachiko Hayashida, International Workshop on Land Use/Cover Changes and Air Pollution in Asia, Toward Improvement of Methane Emission Inventory of South Asia from GOSAT, Aug. 2015, True
  • Sachiko Hayashida; Xiong Liu; Akiko Ono; K. Yang; Kelly Chance, International Workshop on Land Use/Cover Changes and Air Pollution in Asia, Ozone enhancement in the lower troposphere over East Asia observed from a space-borne ultraviolet spectrometer, Aug. 2015, Bogor, Indonesia, True
  • Sachiko Hayashida; Xiong Liu; Akiko Ono; K. Yang; Kelly Chance, Second Workshop on Atmospheric Composition and the Asian Monsoon (ACAM), Ozone enhancement in the lower troposphere over East Asia observed from a space-borne ultraviolet spectrometer, Jun. 2015, Bangkok, Thailand, True
  • HAYASHIDA Sachiko, 気象学会春季大会, 東アジア上空での大気オゾンの変動について, May 2015, 日本気象学会, つくば国際会議場(エポカルつくば), False
  • HAYASHIDA Sachiko, 日本地球惑星科学連合2015年大会, 大気化学セッション, 5/24-5/28, 2015., 北半球中高緯度の中部対流圏から成層圏のCH4, H2O, N2O, 気温高度分布-GOSAT 熱赤外センサ, ACE-FTS, 航空機観測の比較-,, May 2015, 日本地球惑星科学連合, 幕張, False
  • HAYASHIDA Sachiko, 第23回生研フォーラム「宇宙からの地球環境・災害のモニタリングとリスク評価」, 人工衛星データに対するカゲ指数の応用例, Mar. 2015, 東京大学生産科学技術研究所, False
  • HAYASHIDA Sachiko, 第23回生研フォーラム「宇宙からの地球環境・災害のモニタリングとリスク評価」, 宇宙からの紫外放射観測による下層オゾン観測の可能性ー中国上空の事例ー, Mar. 2015, 東京大学生産科学技術研究所, False
  • Sachiko Hayashida; Akiko Ono; Xiong Liu; Kai Yang; Yugo Kanaya; Kelly Chance, AGU fall meeting, Ozone Enhancement in the Lower Troposphere over East Asia Observed by OMI: Evidence of Transboundary Pollution Transport from China to Korea and Japan, Dec. 2014, American Geophysical Union, San Francisco, True
  • HAYASHIDA Sachiko, 日本リモートセンシング学会第57回(平成26年度秋季)学術講演会, 衛星データに適用したカゲ指数の解析結果, Nov. 2014, 日本リモートセンシング学会, 京都大学宇治おうばくプラザ, False
  • Sachiko Hayashida, Low Carbon Asia Research Network (LoCARNet) 3rd Annual Meeting, Monitoring of atmospheric Methane from GOSAT over Monsoon Asia, Nov. 2014, Bogor Agricultural University (IPB)\nBandung Institute of Technology (ITB)\nMinistry of Environment and Forestry, Indonesia\nState Ministry of National Development Planning (BAPPENAS)\nNational Institute for Environmental Studies (NIES)\nInstitute for Glo, ASTON BOGOR HOTEL and RESORT, Bogor, Indonesia, True
  • HAYASHIDA Sachiko, 環境省環境研究総合推進費アドバイザリーボード会合, GOSAT SWIR データ解析状況, Nov. 2014, 奈良女子大学 人間文化研究家会議室, False
  • HAYASHIDA Sachiko, 日本気象学会2014年度秋季大会, 中国華北域における一酸化炭素とオゾンの変動解析-バイオマスバーニングとの関連研究, Oct. 2014, 日本気象学会, 福岡国際会議場
  • HAYASHIDA Sachiko, 日本気象学会2014年度秋季大会, 2005年春に着目した中国から日本への越境汚染の事例解析, Oct. 2014, 日本気象学会, 福岡国際会議場, False
  • HAYASHIDA Sachiko, 日本気象学会2014年度秋季大会, アジアにおけるメタン変動の研究―NICAM-TM-CH4モデルと衛星データの比較, Oct. 2014, 日本気象学会, 福岡国際会議場, False
  • HAYASHIDA Sachiko, 第20回大気化学討論会, 東アジア上空での大気オゾン変動-衛星から観た広域変動, Oct. 2014, 日本大気化学会, 府中グリーンプラザ, False
  • Sachiko Hayashida, Joint one Day international conference of Rajdhani College and University of Tokyo Remote Sensing of Earth’s atmosphere, Methane concentrations over Asia: from satellite and in-situ observation, Sep. 2014, Rajdhani College, University of Delhi and Tokyo University, Delhi, India, True
  • Sachiko Hayashida, Seminar at S.P.C. (P.G.) College Baghpat, Methane concentrations over Asia, Sep. 2014, S.P.C. (P.G.) College Baghpat, S.P.C. (P.G.) College Baghpat, True
  • Sachiko Hayashida; A.Ono; X.Liu; K.Yang; K.Chance, the EOS Aura Science Team Meeting, Observation of ozone enhancement in the lower troposphere over East Asia from a Ozone Monitoring Instrument (OMI) ultraviolet spectrometer, Sep. 2014, NASA, College Park, Maryland
  • Sachiko Hayashida; Akiko Ono; Xiong Liu; Kelly Chance, iCACGP/IGAC2014, Tropospheric ozone climatology since 1995 over East Asia, Sep. 2014, iCACGP/IGAC, Natal, Brazil, True
  • Sachiko Hayashida; Akiko Ono; Yosuke Niwa; Ryoichi Imasu, iCACGP/IGAC2014, Comparison of methane concentrations observed from space with model simulation over Monsoon Asia, Sep. 2014, iCACGP/IGAC, Natal, Brazil, True
  • S. Hayashida; A. Ono; X. Liu; K. Yang; K. Chance; Y. Keyamura; S. Kayaba, Asia Oceania Geoscience Society meeting 2014, Ozone Enhancement in the Lowermost Atmosphere Observed Over East and Central China Observed by the Ozone Monitoring Instrument (OMI),, Jul. 2014, Asia Oceania Geoscience Society, True
  • C. Iwasaki; S. Hayashida; A. Butz; T. Machida?, Asia Oceania Geoscience Society meeting 2014, Validation of GOSAT SWIR xCH4 using TCCON and Airborne Measurement, Jul. 2014, Asia Oceania Geoscience Society, Sapporo, True
  • A. Ono; S. Hayashida; A. Ono, Asia Oceania Geoscience Society meeting 2014, Development of Vegetation Index for Grasping the Water, Jul. 2014, Asia Oceania Geoscience Society, Sapporo, True
  • S. Hayashida; A. Ono; T. Nagase; Y. Niwa; R. Imasu, Asia Oceania Geoscience Society meeting 2014, Methane Concentration Over Monsoon Asia Observed from Space: Comparison with Model Simulation,, Jul. 2014, Asia Oceania Geoscience Society, Sapporo, True
  • Y. Terao; S. Nomura; H. Mukai; T. Machida; S. Sharma; S. Hayashida; K. Inubushi; M. Naja; P. Patra, Asia Oceania Geoscience Society meeting 2014, Observations of atmospheric methane concentrations over rice paddies at Karnal, India: Comparison with Nainital, India and Comilla, Bangladesh,, Jul. 2014, Asia Oceania Geoscience Society, Sapporo, True
  • T. Sugita; Y. Kasai; Y. Terao; S. Hayashida; H. Sagawa; M. Suzuki; M. Shiotani, Asia Oceania Geoscience Society meeting 2014, Correlation Between O3 and HCl in the Lower Stratosphere as Observed by SMILES, Jul. 2014, Asia Oceania Geoscience Society, Sapporo, True
  • S. Hayashida; W. Takeuchi; A. Ono; M. Kuji; Y. Kasai, GOSAT-PI meeting, Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia, Jun. 2014, JAXA・環境省・国立環境研究所, Tsukuba, True
  • HAYASHIDA Sachiko, 日本リモートセンシング学会 第56回(平成26年度春季)学術講演会, 放射伝達モデルを用いたカゲ指数のシミュレーション結果,, May 2014, 日本リモートセンシング学会, 独立行政法人・産業技術総合研究所 つくばセンター, False
  • HAYASHIDA Sachiko, 日本地球惑星科学連合2014年大会 大気化学セッション, GOSAT SWIR xCH4の検証 (地上観測ネットワークTCCONと航空機観測を用いて), Apr. 2014, 日本地球惑星連合会(JpGU), パシフィコ横浜, False
  • HAYASHIDA Sachiko, 日本地球惑星科学連合2014年大会 大気化学セッション, 中国華北平原におけるCOと火災件数の関係, Apr. 2014, 日本地球惑星連合会(JpGU), パシフィコ横浜, False
  • HAYASHIDA Sachiko, 日本地球惑星科学連合2014年大会 大気化学セッション, 中国から日本へのオゾン越境汚染の事例解析, Apr. 2014, 日本地球惑星連合会(JpGU), パシフィコ横浜, False
  • N. Saitoh; R. Imasu; T. Sugita; S. Hayashida; K. Shiomi; S. Kawakami; T. Machida; Y. Sawa; H. Matsueda; Y. Terao, AGU Fall Meeting, New products of GOSAT/TANSO-FTS TIR CO2 and CH4 profiles: Algorithm and initial validation results, Dec. 2013, Moscone Center, USA, True
  • HAYASHIDA Sachiko, 環境省環境研究総合推進費アドバイザリーボード会合, GOSAT SWIR データ解析状況, Nov. 2013, 奈良女子大学 人間文化研究家会議室, False
  • HAYASHIDA Sachiko, 第19回大気化学討論会, 東アジアの下部対流圏オゾンの変動についてーオゾンライダーとOMIによる観測結果の比較ー, Nov. 2013, 石川県, False
  • HAYASHIDA Sachiko, 日本気象学会2013年度秋季大会, 東アジアにおける対流圏オゾンのクライマトロジーの研究, Nov. 2013, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本気象学会2013年度秋季大会, 後方流跡線解析を用いた空気塊分類とタグ付きトレーサー実験によるオゾン起源の比較に関する研究, Nov. 2013, 仙台国際センター, False
  • HAYASHIDA Sachiko, 日本リモートセンシング学会 第55回(平成25年度秋季)学術講演会, 人工衛星データに対するカゲ指数の応用例, Nov. 2013, 日本大学工学部50周年記念館, False
  • S. Hayashida, The 4th GEMS Science Meeting, Tropospheric ozone over East Asia - climatology and satellite observation, Oct. 2013, Seoul, Korea, True
  • Sachiko Hayashida, Aryabhatta Research Institute of Observational Sciences (ARIES), Methane concentrations over Monsoon Asia as observed by satellite sensors: Signals of methane emission from rice cultivation, Aug. 2013, Aryabhatta Research Institute of Observational Sciences (インド)における招待講演, インド、ナイニタール, True
  • S. Hayashida; A.Ono; T. Nagase, Workshop on Atmospheric Composition and the Asian Summer Monsoon, Methane concentrations observed from space over monsoon Asia: Signals of methane emissions from rice cultivation and biomass burning, Jun. 2013, Kathmandu, Nepal, True
  • HAYASHIDA Sachiko, 日本気象学会2013年度春季大会, GOSAT衛星と航空機で観測されるシベリア域大気中メタン濃度の比較解析, May 2013, 国立オリンピック記念青少年総合センター, False
  • HAYASHIDA Sachiko, 日本気象学会2013年度春季大会, クラスタ解析を用いたアジアにおけるメタン変動の研究, May 2013, 国立オリンピック記念青少年総合センター, False
  • Xiaozhen Xiong; N. Saitoh; C. Barnet; E. Maddy; S. Hayashida; T. Machida; H. Matsueda; Y. Sawa; T.S.Pagano; A. Gambacorta; T.S.King; T. Reale; W.Wolf, The 5th GOSAT RA PI meeting, Comparison of GOSAT TIR CH4 Profiles with AIRS-V6 and NOAA IASI CH4 Products, May 2013, Yokohama Symposia, True
  • S. Hayashida; W. Takeuchi; A. Ono; M. Kuji; Y. Kasai, The 5th GOSAT RA PI meeting, Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia, May 2013, Yokohama Symposia, False
  • Megumi Yamamoto; S. Hayashida; A. Ono; T. Machida; T. Sugita, 9th International Workshop on Greenhouse Gas Measurements from Space, Comparison of GOSAT XCH4 and airborne measurements over Siberia, May 2013, Yokohama Symposia, True
  • S. Hayashida; A. Ono; A. Butz, 9th International Workshop on Greenhouse Gas Measurements from Space, Characterization of biomass burning from combined analysis using SCIAMACHY, GOSAT and MOPITT, May 2013, Yokohama Symposia, True
  • Naoko Saitoh; Ryoichi Imasu; Takafumi Sugita; Sachiko Hayashida; Kei Shiomi, AGU Fall Meeting, Algorithm improvement toward better retrieval of CO2 and CH4 profiles from GOSAT/TANSO-FTS thermal infrared spectra, Dec. 2012, True
  • Sachiko Hayashida; Akiko Ono; Saho Ishikawa; Yukio Terao; Wataru Takeuchi, AGU Fall Meeting, Comparison of atmospheric CH4 concentration observed by GOSAT and in-situ measurements in Thailand and India, Dec. 2012, True
  • HAYASHIDA Sachiko, 環境省環境研究総合推進費アドバイザリーボード会合, GOSAT SWIR データ解析状況, Nov. 2012, 国際奈良学セミナーハウス
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, 衛星観測データから得られた東南アジアのメタン変動:バイオマスバーニングの影響検知について, Oct. 2012, False
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, GOSATデータ等を用いた全球メタン発生領域の特性抽出と定量化~環境省推進費プロジェクトの紹介と進捗状況報告(第一報)~, Oct. 2012, False
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, SCIAMACHYセンサ・TANSO-FTSセンサで観測されるメタンの時空間的分布変動の研究, Oct. 2012, False
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, 国際宇宙ステーションからの大気環境観測ミッションAPOLLO提案, Oct. 2012, False
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, GOSAT/TANSO-FTS TIRからのメタン濃度高精度導出のための同時推定アルゴリズムの検討, Oct. 2012
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, オゾンライダーを用いた対流圏オゾンの高度分布の動態解析, Oct. 2012
  • HAYASHIDA Sachiko, 日本気象学会2012年度秋季大会, 衛星からの熱赤外域天底測定によるメタン導出のための気温・水蒸気高度分布の整備, Oct. 2012, False
  • HAYASHIDA Sachiko, 第18回大気化学討論会, GOSAT/TANSO-FTS TIRセンサーからのメタン濃度高精度導出アルゴリズムの検討, Oct. 2012, False
  • HAYASHIDA Sachiko, 第18回大気化学討論会, 全球メタン発生領域の特性抽出と定量化へのアプローチ~環境省環境研究総合推進費プロジェクトの紹介~, Oct. 2012, False
  • Sachiko Hayashida, The 3rd GEMS Workshop, Plan of Japanese ISS mission of Atmospheric Chemistry (APOLLO), Oct. 2012, Korea
  • Sachiko Hayashida, Central Soil Salinity Research Institute, Atmospheric CH4 distribution observed by satellites, Aug. 2012, Central Soil Salinity Research Institute, India, True
  • S. Hayashida; W.Takeuchi; A.Ono; M. Kuji with RemoTeC-N; J joint; project members:A.Butz; O.Hasekamp; Y.Kasai; A.Kuze; K.Shiomi; H.Suto, The 4th GOSAT RA PI Meeting, Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia, Jun. 2012, True
  • Xiaozhen Xiong; Naoko Saitoh; Chris Barnet; Eric maddy; Sachiko Hayashida; Toshinobu Machida; Hidekazu Matsueda; Yousuke Sawa; Thoms.S.Pagano, The 4th GOSAT RA PI Meeting, Comparison of CH4 retrieved from GOSAT TANSO TIR, AIRS and aircraft measurements, Jun. 2012, True
  • Sachiko Hayashida, JSPS-NRCT seminar, Characteristics of methane concentration over Monsoon Asia: Insight from satellite oebservations, Jun. 2012, Thailand
  • S Hayashida, 日本地球惑星科学連合2012年大会, SMILES/MLS/ACE-FTSによる南極極渦崩壊前のHCl/C/y比, May 2012, 幕張メッセ
  • HAYASHIDA Sachiko, 日本気象学会2011年度秋期大会, 東アジアにおける対流圏オゾン気柱量の起源分類ータグ付きトレーサー実験に基づく対流圏内の領域別解析ー, Nov. 2011, False
  • HAYASHIDA Sachiko, 日本気象学会2011年度秋期大会, TANSO-FTS近赤外チャンネルで観測されたメタン気柱平均濃度の検証解析, Nov. 2011, False
  • HAYASHIDA Sachiko, 日本気象学会2011年度秋期大会, SCIAMACHYセンサで観測されたアジア域におけるメタン変動の研究ー地表面冠水率、植生指数、HotSpot件数のデータを用いた解析ー, Nov. 2011, False
  • HAYASHIDA Sachiko, 日本気象学会2011年度秋期大会, GOSAT TANSO-FTS熱赤外チャンネルから導出されたメタン濃度とAIRSおよびCONTRAILの比較解析, Nov. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, TANSO-FTSセンサ(GOSAT)とAIRSセンサ(EOS/Aqua)から導出されたCH4濃度の比較解析, Oct. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, CONTRAILデータを用いたTANSO-FTSから導出されたメタン気柱平均濃度およびメタン鉛直分布の検証解析, Oct. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, SMILESによる南極春季極渦内での高いHCL/Cly比の観測;MLSおよびACE-FTSとの比較, Oct. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, 東アジアにおける対流圏内で生成したオゾン気柱量の起源分類とその特徴ータグ付きトレーサー実験に基づく対流圏内の高度に着目した領域別解析ー, Oct. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, SCIAMACHYセンサで観測された大気中メタン変動の研究ーアジア域における水田・バイオマスバーニングとの関連ー, Oct. 2011, False
  • HAYASHIDA Sachiko, 第17回大気化学討論会, GOSAT/TANSO-FTSの熱赤外バンドによる温室効果ガス観測について, Oct. 2011, False
  • N.Saitoh; R.Imasu; K.Shiomi; Y.Nasu; M.Touno; S.Hayashida, IGARSS, CO2 and CH4 concentrations in the middle and upper tropospheric from GOSAT/TANSO-FTS TIR, Jul. 2011, True
  • N.Saitoh; Y.Nasu; M.Touno; S.Hayashida; R.Imasu, The XXV IUGG General Assembly, Middle and upper tropospheric CH4 concentrations derived from GOSAT/TANSO-FTS TIR, Jun. 2011, True
  • S.Hayashida; A.Nakatani; S.Kondo; K.Shiohira; X.Liu, The XXV IUGG General Assembly, Enhanced Mid-latitude Tropospheric Column Ozone over East Asia Associated with the Subtropical Jet, Jun. 2011, True
  • N.Saitoh; R.Imasu; K.Shiomi; Y.Nasu; M.Touno; S.Hayashida, IWGGMS7, Middle and upper tropospheric CO2 and CH4 concentrations retrieved from GOSAT/TANSO-FTS Band4, May 2011, True
  • K.Noguchi; H.Irie; Y.Morino; S.Hayashida; A.Richter; H.Bovensmann; A.Hilboll; J.P.Burrows, AGU Fall Meeting, A feasibility study for the monitoring of diurnal variations of the tropospheric NO2 over Tokyo from a geostationary satellite, Dec. 2010, True
  • A.Nakatani; S.Hayashida; T.Nagashima; S.Kondo; X.Liu; K.Sudo; I.Hirota, AGU Fall Meeting, Correlation between subtropical jet and the Enhanced-Tropospheric Columnar Ozone (E-TCO) belt, Dec. 2010, True
  • S.Hayashida; S.Yoshizaki; C.Frankenberg; X.Yan, AGU Fall Meeting, Atmospheric methane observed from space over the Asian monsoon: implications for emission from Asian rice paddies, Dec. 2010, True
  • HAYASHIDA Sachiko, 日本気象学会2010年度秋期大会, 東アジア域の対流圏オゾンのMOZAICデータ解析, Oct. 2010
  • HAYASHIDA Sachiko, 日本気象学会2010年度秋期大会, 衛星で観測された対流圏オゾン気柱量の変動解析-対流圏オゾン高濃度域とジェット気流との関係-, Oct. 2010, False
  • HAYASHIDA Sachiko, 日本気象学会2010年度秋期大会, 東アジア付近の対流圏オゾン気柱量に見られる高濃度帯(E-TCO)の成因と季節変動の原因に関する研究, Oct. 2010, False
  • HAYASHIDA Sachiko, 日本気象学会2010年度秋期大会, 衛星観測データから得られたモンスーンアジア地域のメタン変動-水田からの発生との関連-, Oct. 2010, False
  • Sachiko Hayashida, Seminar at Faculty of Agriculture, Kohn Kaen University, Characterization of the methane source from rice paddies in Monsoon Asia~ Bottom-up approach and observation from space ~, Jul. 2010, Faculty of Agriculture, Kohn Kaen University, タイ、コンケン大学, True
  • Yoshizaki S; S Hayashida, ASSFTS 15th Workshop, Comparison of the CH4 data observed with GOSAT TANSO-FTS-SWIR and SCIAMACHY, May 2010, True
  • HAYASHIDA Sachiko, 日本気象学会2010年度春期大会, 東アジア付近の対流圏カラムオゾンに見られる高濃度帯(E-TCO)の成因と季節変化の原因に関する研究, May 2010, False
  • Sugita T; Hayashida S; Kasai Y; Terao Y, SMILES International Workshop 2010, Quantitative evaluations of inorganic chlorine chemistry in the stratosphere using a photochemical model, Mar. 2010, True
  • S. Hayashida, GOSAT RA PI Meeting, Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia, Jan. 2010, True
  • K.Inubushi; T.Tanimichi; A.Yamamoto; K.Ono; S.Sudo; S.Hayashida; N.Saitoh; V.Ambethgar, 129th Annual Meeting of the Japanese Society for Tropical Agriculture, Relationships among soil color, iron contents and methane production in south India, 16 Mar. 2021, 16 Mar. 2021, 17 Mar. 2021, 熱農要旨(谷道).pdf, True, rm:research_project_id
  • Misra, P; M. Takigawa; P. Khatri; S. K. Dhaka; A. P. Dimri; K. Yamaji; M. Kajino; W. Takeuchi; R. Imasu; P. K. Patra; S. Hayashida, AGU Fall Meeting 2020 (Online), Detection of significant change in nitrogen oxides concentration and emission during COVID-19 lockdown in North India, 15 Dec. 2020, Dec. 2020, Dec. 2020, rm:research_project_id
  • Nguyen, T. H; S. Hayashida; P. Misra; P. Khatri; Y. Matsumi; T. Nakayama; S. K. Dhaka; A. P. Dimri, AGU Fall Meeting 2020 (Online), Detection of Change in the Aerosol distribution over North-West India during the Covid-19 Lockdown period, 07 Dec. 2020, Dec. 2020, Dec. 2020, rm:research_project_id
  • Hayashida, S, A Community Response Forum, NASA, “Aakash: An interdisciplinary study toward clean air, public health and sustainable agriculture: The case of crop residue burning in North India.” Earth Observations of Crop Burning and Air Pollution over India, 12 Nov. 2020, Nov. 2020, Nov. 2020, rm:research_project_id
  • Sachiko Hayashida, 29th IIS forum "Earth observation, disaster monitoring and risk assessment from space", Detection of air pollution reduction due to a change of anthropogenic activities after COVID-19 pandemic over south Asia, 12 Mar. 2021, 11 Mar. 2021, 12 Mar. 2021, rm:research_project_id
  • Prakhar Misra, 29th IIS forum "Earth observation, disaster monitoring and risk assessment from space", COVID-19 lockdown impacts on NOx emission: top-down estimation over North India, 12 Mar. 2021, 11 Mar. 2021, 12 Mar. 2021, rm:research_project_id
  • Sachiko Hayashida, Kick-off Symposium NIES/NU/RIHN on Planetary Health, A pathway of social transformation toward clean air, public health and sustainable agriculture - a case in North India., 18 Feb. 2021, 18 Feb. 2021, 19 Feb. 2021, rm:research_project_id
  • Kaho Nitta; Sachiko Hayashida, The 69th Conference (2020 Autumn Conference) of the Remote Sensing Society of Japan, Intercomparison of TROPOMI and OMI tropospheric NO2 over South Asia, 22 Dec. 2020, 21 Dec. 2020, 22 Dec. 2020, rm:research_project_id
  • Sachiko Hayashida, Northern India Air Pollution Meeting, Concept of mission DELHIS: why we want to estimate the anthropogenic emission of air pollutants in Delhi and how, 23 Aug. 2020, 23 Aug. 2020, 24 Aug. 2020, rm:research_project_id
  • Sachiko Hayashida, International Symposium on Remote Sensing (ISRS) 2021, Remote Sensing in the era of “Anthropocene” Observation of atmospheric trace species emitted by human activities, 26 May 2021, 26 May 2021, 28 May 2021, rm:research_project_id
  • Sachiko Hayashida, International Workshop on Fires in South Asia: Current status and future challenges in monitoring, modeling, predictions and mitigation, An Interdisciplinary Study toward Clean Air, Public Health and Sustainable Agriculture: The Case of Crop Residue Burning in North India, 03 Dec. 2021, 03 Dec. 2021, 04 Dec. 2021, rm:research_project_id
  • 黒木由貴; 林田佐智子, 日本リモートセンシング学会第71回学術講演会, インドパンジャーブ地方における MODIS, VIIRSの⻑期傾向解析, 15 Nov. 2021, 15 Nov. 2021, 16 Nov. 2021, rm:research_project_id
  • 松見 豊; 中山 智喜; 林田 佐智子; 上田 佳代; 安富 奈津子; 荒木 晶; 山崎 高幸; 岡本 渉; 高見 昭憲; 藤谷 雄二; 入江 仁士, 第62回大気環境学会年会, 遠隔地で多点展開が可能な PM2.5、Ox、CO、NOx などの大気汚染物質の超小型でローコストな計測装置の開発, 15 Sep. 2021, 15 Sep. 2021, 17 Sep. 2021, rm:research_project_id

Works

  • Development of multi-wavelength ozone laser radar to measure stratospheric and tropospheric ozone layer, HAYASHIDA Sachiko, 1987, 1988

Awards

  • Horiuchi Aword, Japan Meteorological Society, 2002
  • Best Paper Award, The Remote Sensing Society of Japan, 1999
  • Nikkei Global Environmental Technology Awards, 1992

Research Projects

  • Oct. 2018, Mar. 2025, An Interdisciplinary Study toward Clean Air, Public Health and Sustainable Agriculture: The Case of Crop Residue Burning in North India, Research Institute for Humanity and Nature, Research Project, Research Institute for Humanity and Nature, rm:published_papers;rm:published_papers;rm:published_papers;rm:published_papers;rm:published_papers;rm:published_papers;rm:published_papers;rm:published_papers;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations;rm:presentations
  • Apr. 2018, Mar. 2020, Coinvestigator, GOSAT−2と地上観測による全球のメタン放出量推定と評価手法の包括的研究, 環境研究総合推進費, rm:misc;rm:presentations;rm:presentations
  • 2016, 2018, アジアのオゾン汚染の実態把握と越境汚染背の影響評価:衛星観測と化学輸送モデルの比較, 科学研究費補助金, 0, 0, 0, Competitive research funding
  • 2015, 2017, GOSAT等を応用した南アジア域におけるメタンの放出量推定の精緻化と削減手法の評価, 官民連帯共同研究, 0, 0, 0, 本研究では、インドとバングラデシュにおいて、大気メタン濃度およびメタンフラックスの観測を行い、そのデータを温室効果ガス観測技術衛星(GOSAT)の観測データと共に大気輸送モデルに投入してインバース解析を行うことにより、これまで十分でなかった南アジア地域からのメタン発生量推定の精緻化を行うことをまず目標とする。その結果に基づき、水田メタン発生削減策を複数提示し、大気科学的知見から削減策の定量的評価を行う。, Competitive research funding
  • 2011, 2015, 衛星データ等複合利用による    東アジアの二酸化炭素, メタン高濃度発生源の特性解析, 環境研究, 0, 0, 0, MODIS センサーなどからの地表面・植生データ(ボトムアップ解析用データ)と、GOSAT などの温室効果気体濃度データ(トップダウン解析用データ)、および気球ゾンデや地上計測器などのデータの複合利用により、東アジアにおける二酸化炭素発生量について、整合の取れた新たなデータベースを作成する。, Competitive research funding
  • 2012, 2014, GOSATデータ等を用いた全球メタン発生領域の特性抽出と定量化, 地球環境研究総合推進費, 0, 0, 0, 本研究では、衛星で観測される大気中メタン濃度の情報を最大限活用し、長年にわたって蓄積してきた航空機や船舶観測で得られたメタン濃度データを加えてインバースモデルによる解析を行い、メタンの放出分布とその変動を解明しようとするものである。, Competitive research funding, rm:misc
  • 2005, 衛星リモートセンシングによる対流圏微量成分データの解析, 0, 0, 0, Competitive research funding
  • 2005, Satellite data analysis on tropospheric chemical species, 0, 0, 0, Competitive research funding
  • 中国他アジアの大気汚染の衛星からの実態把握に関する研究, 0, 0, 0, Competitive research funding
  • 地球温暖化に対する大気微量成分の影響評価, 0, 0, 0, Competitive research funding
  • 衛星からの大気微量成分とエアロゾルの測定手法に関する研究, 0, 0, 0, Competitive research funding
  • 成層圏の化学的変動機構解明のための数値モデルに関する研究, 0, 0, 0, Competitive research funding
  • リモートセンシングによるオゾン等成層圏微量成分データの解析, 0, 0, 0, Competitive research funding
  • Algorithm Study of satellite-borne remote sensors to monitor atmospheric minor constituents and aerosols, 0, 0, 0, Competitive research funding
  • Study on a numerical model of the chemical mechanism of the stratosphere, 0, 0, 0, Competitive research funding
  • Analysis of stratospheric ozone and other minor species measured by remote sensors, 0, 0, 0, Competitive research funding

Ⅲ.社会連携活動実績

1.公的団体の委員等(審議会、国家試験委員、他大学評価委員,科研費審査委員等)

  • Remote Sensing Society of Japan (RSSJ), President, Jul. 2020, May 2022, Society
  • Apr. 2019, Mar. 2020, Government
  • Mar. 2013, Mar. 2021, Government
  • Jun. 2011, 9999, Others
  • May 2011, 9999, Others
  • Apr. 2009, 9999, Others
  • May 2006, 9999, Society
  • Jun. 1999, 9999, Others
  • International Commission on Atmospheric Chemistry and Global Pollution (iCACGP), member, Jul. 2010, Sep. 2018, iCACGP (international Commission on Atmospheric Chemistry and Global Pollution) which is one of the commissions in IAMAS (International Association of Meteorology and Atmospheric Sciences) under the ICSU (International Council for Science) family, Society
  • Aug. 2014, Nov. 2016, Others
  • Aug. 2016, Sep. 2016, Others
  • May 2011, Mar. 2016, Others
  • Jun. 2009, Mar. 2016, Government
  • Nov. 2013, Sep. 2014, Others
  • Dec. 2011, Nov. 2013, Others
  • Jul. 2012, Jan. 2013, Government
  • Apr. 2008, Jul. 2012, Government
  • May 2008, May 2012, Society
  • Sep. 2006, Sep. 2011, Government
  • Sep. 2008, Jun. 2010, Society
  • Aug. 2008, Mar. 2010, Others
  • Sep. 2005, Sep. 2009, Others
  • Aug. 2008, Mar. 2009, Others
  • Apr. 2006, Sep. 2008, Others
  • Aug. 2006, Jul. 2008, Others
  • Jul. 2006, Jun. 2008, Society
  • Aug. 2004, Jun. 2008, Society
  • Nov. 2006, Mar. 2008, Government
  • Aug. 2004, Mar. 2008, Government
  • Feb. 2005, Feb. 2007, Government
  • Feb. 2005, Dec. 2005, Society
  • Jun. 2003, Mar. 2005, Others
  • Jul. 2002, Mar. 2005, Others
  • Feb. 2002, Jan. 2005, Government
  • Aug. 2002, Jul. 2004, Others
  • May 2001, May 2004, Society
  • Sep. 2003, Mar. 2004, Others
  • Jul. 2003, Mar. 2004, Others
  • Jun. 1999, Mar. 2003, Others
  • Jun. 1999, Mar. 2002, Others
  • Sep. 1999, Aug. 2001, Autonomy
  • Jun. 2000, Jun. 2001, Society
  • Apr. 1999, Mar. 2001, Society
  • Apr. 1997, Mar. 1998, Others
  • Remote Sensing Society of Japan, Vice-President, Apr. 2018, Jun. 2020, Society
  • Apr. 2022, 9999, Government


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