研究者総覧

林田 佐智子 (ハヤシダ サチコ)

  • 研究院自然科学系環境科学領域 教授
メールアドレス:
shayashidacc.nara-wu.ac.jp
Last Updated :2021/08/31

researchmap

学位

  • 博士(理学), 名古屋大学, 1985年07月

研究キーワード

  • 衛星リモートセンシングによる大気微量成分の研究 

研究分野

  • 自然科学一般, 大気水圏科学
  • 環境・農学, 環境動態解析

経歴

  • 2019年08月 総合地球環境学研究所 研究部 教授 博士 日本国
  • 2012年04月 奈良女子大学 研究院 自然科学系 教授 日本国
  • 2001年03月 - 2012年03月 奈良女子大学 理学部 情報科学科 教授 日本国
  • 1994年01月 - 2001年02月 奈良女子大学 助教授
  • 1999年04月 - 2000年03月 京都大学 大学院エネルギー研究科 客員助教授併任(地球環境論担当)
  • 1990年04月 - 1993年12月 国立環境研究所 主任研究員
  • 1992年09月 - 1993年09月 米国大気海洋庁エアロノミー研究所 客員研究員 アメリカ合衆国
  • 1985年04月 - 1990年03月 国立研究開発法人国立環境研究所 研究員 日本国

学歴

  • 1982年04月- 1985年03月 名古屋大学 大学院理学研究科 博士後期課程 大気水圏科学
  • 1980年04月- 1982年03月 名古屋大学 大学院理学研究科 博士前期課程 大気水圏科学
  • 1976年04月- 1980年03月 京都大学 理学部 地球物理学

委員歴

  • 2020年07月 日本リモートセンシング学会 会長 society

    学協会

  • 2019年04月 - 2020年03月 文部科学省宇宙航空科学技術推進委託費審査評価会 委員 government

    政府

  • 2013年03月 - 2021年03月 文部科学省科学技術・学術審議会 臨時委員宇宙開発利用部会委員 government

    政府

  • 2011年06月 航空機による地球環境観測推進委員会 委員 others

    その他

  • 2011年05月 成層圏オゾン層保護に関する検討会 委員 others

    その他

  • 2009年04月 京都大学生存圏研究所生存圏フォーラム運営委員会 委員 others

    その他

  • 2006年05月 大気化学研究会 対流圏衛星観測検討委員会委員 society

    学協会

  • 1999年06月 宇宙科学研究所理学委員会「B.太陽系科学分野」 班員 others

    その他

  • 2010年07月 - 2018年09月 IAMAS小委員会・大気化学と地球汚染に関する国際委員会(iCACGP) 委員 ICS傘下IAMAS下の小委員会 society

    学協会

  • 2014年08月 - 2016年11月 日本学術振興会 基盤研究等第1段審査委員 others

    その他

  • 2016年08月 - 2016年09月 「GOSATに関する専門家会合」 メンバー others

    その他

  • 2011年05月 - 2016年03月 国立環境研究所研究外部評価委員 委員 others

    その他

  • 2009年06月 - 2016年03月 文部科学省委託費審査評価会 宇宙利用促進調整委託費選定委員 宇宙航空研究開発機構委託業務 government

    政府

  • 2013年11月 - 2014年09月 日本学術会議(地球惑星科学委員会地球・惑星圏分科会) 委員 others

    その他

  • 2011年12月 - 2013年11月 日本学術振興会 基盤研究等第1段審査委員 others

    その他

  • 2012年07月 - 2013年01月 文部科学省科学技術・学術審議会 専門委員 government

    政府

  • 2008年04月 - 2012年07月 文部科学省宇宙開発委員会 特別委員 government

    政府

  • 2008年05月 - 2012年05月 大気化学研究会 運営委員 society

    学協会

  • 2006年09月 - 2011年09月 日本学術会議 連携会員 government

    政府

  • 2008年09月 - 2010年06月 日本気象学会 第35期地球環境問題委員会委員 society

    学協会

  • 2008年08月 - 2010年03月 静止大気環境ミッション検討委員会 委員 others

    その他

  • 2005年09月 - 2009年09月 WCRP(世界気候研究計画)/SPARC(成層圏過程とその気候における役割)プロジェクト国際SSG 科学運営委員会 委員 others

    その他

  • 2008年08月 - 2009年03月 新規ミッション検討委員会 委員 others

    その他

  • 2006年04月 - 2008年09月 日本学術会議 連携会員 others

    その他

  • 2006年08月 - 2008年07月 日本学術振興会特別研究員等審査会および国際事業委員会 専門委員 others

    その他

  • 2006年07月 - 2008年06月 日本気象学会 第34期理事地球環境問題委員会委員長 society

    学協会

  • 2004年08月 - 2008年06月 日本気象学会 第33期/34期「堀内賞」選定委員 society

    学協会

  • 2006年11月 - 2008年03月 気象庁気候問題懇談会検討部会 委員 government

    政府

  • 2004年08月 - 2008年03月 気象庁気候問題懇談会 委員 government

    政府

  • 2005年02月 - 2007年02月 文部科学省独立行政法人JAMSTEC(海洋研究開発機構)評価委員会 臨時委員(評価委員) government

    政府

  • 2005年02月 - 2005年12月 日本気象学会 2005年度秋季大会実行委員 society

    学協会

  • 2003年06月 - 2005年03月 日本気象協会首都圏支社委員会 委員 others

    その他

  • 2002年07月 - 2005年03月 GCOM(地球環境変動観測ミッション)-A1/OPUS委員会 委員 others

    その他

  • 2002年02月 - 2005年01月 文部科学省科学技術・学術審議会 専門員 government

    政府

  • 2002年08月 - 2004年07月 日本学術振興会特別研究員等審査会 専門委員 others

    その他

  • 2001年05月 - 2004年05月 大気化学研究会 運営委員 society

    学協会

  • 2003年09月 - 2004年03月 通信総合研究所 研究評価委員 others

    その他

  • 2003年07月 - 2004年03月 GCOM委員会 委員 others

    その他

  • 1999年06月 - 2003年03月 ILAS等衛星データ検証・データ利用検討委員会 委員 others

    その他

  • 1999年06月 - 2002年03月 地球科学技術推進機構地球科学フォーラム 地球観測委員会委員 others

    その他

  • 1999年09月 - 2001年08月 奈良市環境審議会 委員 autonomy

    自治体

  • 2000年06月 - 2001年06月 日本気象学会 評議員 society

    学協会

  • 1999年04月 - 2001年03月 日本エアロゾル学会 編集委員 society

    学協会

  • 1997年04月 - 1998年03月 NHK21世紀プロジェクト 委員 others

    その他

  • 2018年04月 - 2020年06月 日本リモートセンシング学会 副会長 society

    学協会

受賞

  • 日本気象学会 堀内賞, 2002年
  • 日本リモートセンシング学会 論文賞, 1999年
  • 日経地球環境技術賞, 1992年

論文

  • 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., 2020年09月11日, ISPRS International Journal of Geo-Information, 9 (9), 544 - 544, doi;url;rm:research_project_id

    研究論文(学術雑誌)

  • 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

    社団法人日本気象学会, 2020年09月, 天気, 67 (8), 445 - 453

    研究論文(学術雑誌)

  • 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

    2020年08月, Scientific Reports, 10 (1), doi;url;url;rm:research_project_id

    研究論文(学術雑誌)

  • 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., 日本気象学会, 2020年04月, SOLA, 16, 86 - 91, 国際誌, 国際共著している, doi;web_of_science;rm:research_project_id

    研究論文(学術雑誌)

  • 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

    2019年12月, Scientific Reports, 9 (1), 19629, doi;url;url

    研究論文(学術雑誌)

  • 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, American Meteorological Society, 2019年08月, BAMS, doi

    研究論文(学術雑誌)

  • 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

    2019年06月, Journal of Earth System Science, 128 (92), doi

    研究論文(学術雑誌)

  • 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

    2018年09月, Agronomy, 8, 202, doi

    研究論文(学術雑誌)

  • 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., 2018年07月01日, Atmospheric Environment, 184, 244 - 253, doi

    研究論文(学術雑誌)

  • 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., 2018年03月26日, Atmospheric Measurement Techniques, 11 (3), 1653 - 1668, doi

    研究論文(学術雑誌)

  • 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, 2018年03月, Land‐Atmospheric Applications in South and Southerast Asia, Book Series: Springer Remote Sensing/Photogrammetry, 255 - 275, doi

  • 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., 2018年01月01日, Journal of Applied Remote Sensing, 12 (1), 12002, doi

    研究論文(学術雑誌)

  • 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., ELSEVIER SCIENCE BV, 2018年01月, AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 252, 148 - 158, doi;web_of_science

    研究論文(学術雑誌)

  • 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., COPERNICUS GESELLSCHAFT MBH, 2017年10月, ATMOSPHERIC CHEMISTRY AND PHYSICS, 17 (20), 12633 - 12643, doi;web_of_science

    研究論文(学術雑誌)

  • Estimation of Forest Canopy Height Using MODIS Shadow Index

    A Ono,S Hayashida,W Takeuchi

    2015年10月, Proceedings of the 36th Asian Conference on Remote Sensing (ACRS),Manilla, Phillippines, Oct. 20, 2015.

    研究論文(国際会議プロシーディングス)

  • 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., 日本気象学会, 2015年, SOLA, 11, 160 - 164, doi;web_of_science

    研究論文(学術雑誌)

  • 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

    2015年01月, 写真測量とリモートセンシング, 54 (1), 20 - 31, doi

    研究論文(学術雑誌)

  • 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., COPERNICUS GESELLSCHAFT MBH, 2015年, ATMOSPHERIC CHEMISTRY AND PHYSICS, 15 (17), 9865 - 9881, doi;web_of_science

    研究論文(学術雑誌)

  • 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., ELSEVIER SCIENCE INC, 2013年12月, REMOTE SENSING OF ENVIRONMENT, 139, 246 - 256, doi;web_of_science

    研究論文(学術雑誌)

  • 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., COPERNICUS GESELLSCHAFT MBH, 2013年, ATMOSPHERIC MEASUREMENT TECHNIQUES, 6 (11), 3099 - 3113, doi;web_of_science

    研究論文(学術雑誌)

  • 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., METEOROLOGICAL SOC JAPAN, 2012年04月, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 90 (2), 207 - 222, doi;web_of_science

    研究論文(学術雑誌)

  • 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., SPIE-INT SOC OPTICAL ENGINEERING, 2012年, REMOTE SENSING OF THE ATMOSPHERE, CLOUDS, AND PRECIPITATION IV, 8523 (8523), doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • 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., 日本気象学会, 2012年, SOLA, 8 (8), 145 - 149, doi;web_of_science

    研究論文(学術雑誌)

  • 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., ELSEVIER SCI LTD, 2011年11月, ADVANCES IN SPACE RESEARCH, 48 (9), 1551 - 1564, doi;web_of_science

    研究論文(学術雑誌)

  • 衛星センサーSCIAMACHYによる全球メタン観測について

    有山悠子; 衛藤聡美; 野口克行; 林田佐智子

    社団法人日本気象学会, 2009年08月, 天気, 56 (8), 603 - 611

    研究論文(学術雑誌)

  • 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., AMER GEOPHYSICAL UNION, 2009年07月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 114 (14), doi;web_of_science

    研究論文(学術雑誌)

  • Comparison of tropospheric NO2 observations by GOME and the air-quality monitoring network around Tokyo, Japan

    K. Noguchi; H. Itoh; T. Shibasaki; 林田佐智子; I. Uno; T. Ohara; A. Richter; J. P. Burrows

    日本リモートセンシング学会, 2009年04月, 日本リモートセンシング学会誌, 29 (2), 398 - 409, doi

    研究論文(学術雑誌)

  • 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., 日本気象学会, 2008年, SOLA, 4, 117 - 120, doi;web_of_science

    研究論文(学術雑誌)

  • 「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

    社団法人日本気象学会, 2007年11月30日, 天気, 54 (11), 979 - 982, cinii_articles

    研究論文(学術雑誌)

  • 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., AMER GEOPHYSICAL UNION, 2007年07月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 112 (14), doi;web_of_science

    研究論文(学術雑誌)

  • 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)., 日本気象学会, 2007年, SOLA, 3, 41 - 44, doi;web_of_science

    研究論文(学術雑誌)

  • 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., COPERNICUS GESELLSCHAFT MBH, 2007年, ATMOSPHERIC CHEMISTRY AND PHYSICS, 7 (6), 1671 - 1681, doi;web_of_science

    研究論文(学術雑誌)

  • 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

    情報処理学会, 2007年, 情報処理学会論文誌:数理モデル化と応用, 48 (SIG6(TOM17))

    研究論文(学術雑誌)

  • 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., 日本気象学会, 2007年, SOLA, 3, 117 - 120, doi;web_of_science

    研究論文(学術雑誌)

  • 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., 日本気象学会, 2007年, SOLA, 3, 137 - 140, doi;web_of_science

    研究論文(学術雑誌)

  • 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., AMER GEOPHYSICAL UNION, 2006年06月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 111 (11), doi;web_of_science

    研究論文(学術雑誌)

  • 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., 日本気象学会, 2006年, SOLA, 2, 72 - 75, doi;web_of_science

    研究論文(学術雑誌)

  • 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., SPIE-INT SOC OPTICAL ENGINEERING, 2006年, REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS, 6408, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Development of an Interactive Visual Data Mining System for Atmospheric Science

    Chiemi Watanabe; Eriko Touma; Kazuko Yamauchi; Katsuyuki Noguchi; Sachiko Hayashida; Kazuki Joe

    2005年, High-Performance Computing, 279 - 286, doi;web_of_science;url

    論文集(書籍)内論文

  • 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., 日本気象学会, 2005年, SOLA, 1, 33 - 36, doi;web_of_science

    研究論文(学術雑誌)

  • 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

    American Chemical Society (ACS), 2004年04月, The Journal of Physical Chemistry A, 108 (13), 2451 - 2456, doi;web_of_science;url

    研究論文(学術雑誌)

  • 紫外域観測衛星センサによる対流圏エアロゾル観測手法における誤差の検討

    芝田 由香里; 蒲生 京佳; 山中 のり子; 久慈 誠; 林田 佐智子

    日本リモートセンシング学会, 2004年, 日本リモートセンシング学会誌, 24 (4), 387 - 397, doi

    研究論文(学術雑誌)

  • 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.(共著)

    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., AMER GEOPHYSICAL UNION, 2003年11月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 108 (D22), 4698, doi;web_of_science

    研究論文(学術雑誌)

  • Quantum yield for N(4S) production in the ultraviolet photolysis of N2O(共著)

    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., AMER GEOPHYSICAL UNION, 2003年11月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 108 (D21), 1 - 7, doi;web_of_science

    研究論文(学術雑誌)

  • Sensitivity studies of the recent new data on O(1D) quantum yields in O3 Hartley band photolysis in the stratosphere(共著)

    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., EUROPEAN GEOPHYSICAL SOC, 2003年09月, ATMOSPHERIC CHEMISTRY AND PHYSICS, 3 (5), 1293 - 1300, web_of_science

    研究論文(学術雑誌)

  • Characteristics of Arctic Polar Stratospheric Clouds in Winter 1996/ 1997 Inferred from ILAS Measurements (共著)

    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., AMER GEOPHYSICAL UNION, 2002年09月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 107 (D24), 1 - 8, doi;web_of_science

    研究論文(学術雑誌)

  • Quantum yields of O(1D) formation in the photolysis of ozone between 230 and 308 nm (共著)

    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., AMER GEOPHYSICAL UNION, 2002年09月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 107 (D20), 4440, doi;web_of_science

    研究論文(学術雑誌)

  • Satellite Observation of Dehydration in the Arctic Polar Stratosphere(共著)

    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., AMER GEOPHYSICAL UNION, 2002年04月, GEOPHYSICAL RESEARCH LETTERS, 29 (8), 1 - 4, doi;web_of_science

    研究論文(学術雑誌)

  • Anti-correlation between the extinction and the Angstrom parameter of the stratospheric aerosol based on the multiple wavelength measurements with SAGE II-as a characteristic of the decay period following major volcanic eruptions(共著)

    S. Hayashida; M. 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., AMER GEOPHYSICAL UNION, 2001年11月01日, GEOPHYSICAL RESEARCH LETTERS, 28 (21), 4063 - 4066, doi

    研究論文(学術雑誌)

  • Stratospheric background aerosols and polar stratospheric clouds observed with satellite sensors-Inference of particle composition and sulfate amount-(共著)

    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., SPIE-INT SOC OPTICAL ENGINEERING, 2001年, OPTICAL REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS II, 4150, 76 - 86, web_of_science

    研究論文(国際会議プロシーディングス)

  • Arctic polar stratospheric clouds observed with the improved limb atmospheric spectrometer during winter 1996/1997(共著)

    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., AMER GEOPHYSICAL UNION, 2000年10月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 105 (D20), 24715 - 24730, doi;web_of_science

    研究論文(学術雑誌)

  • ILAS observations of chemical ozone loss in the Arctic vortex during early spring 1997(共著)

    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., AMER GEOPHYSICAL UNION, 2000年01月, GEOPHYSICAL RESEARCH LETTERS, 27 (2), 213 - 216, doi;web_of_science

    研究論文(学術雑誌)

  • Comparison of aerosol extinction measurements by ILAS and SAGE II (共著)

    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., AMER GEOPHYSICAL UNION, 1999年06月, GEOPHYSICAL RESEARCH LETTERS, 26 (12), 1719 - 1722, doi;web_of_science

    研究論文(学術雑誌)

  • ILAS検証実験・解析に関するパリ会議に出席して

    笹野 泰弘; 塩谷 雅人; 中根 英昭; 神沢 博; 鈴木 睦; 林田 佐智子

    社団法人日本気象学会, 1998年04月30日, 天気, 45 (4), 279 - 285, cinii_articles

    研究論文(学術雑誌)

  • SAGEIIで観測された成層圏エアロゾル硝酸係数の波長依存性の時間・空間変動について

    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, 日本リモートセンシング学会, 1998年, 日本リモートセンシング学会誌, 18 (1), 32 - 41

    研究論文(学術雑誌)

  • Improved Limb Atmospheric Spectrometer(ILAS) : Validation and Preliminary Scientific Results(共著)

    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., SPIE-INT SOC OPTICAL ENGINEERING, 1998年, OPTICAL REMOTE SENSING OF THE ATMOSPHERE AND CLOUDS, 3501, 61 - 71, web_of_science

    研究論文(国際会議プロシーディングス)

  • SAMⅡ/SAGE/SAGEⅡによる成層圏エアロゾルの観測

    林田 佐智子

    日本エアロゾル学会, 1997年, エアロゾル研究, 12 (1), 13 - 17

    研究論文(学術雑誌)

  • 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., AMER GEOPHYSICAL UNION, 1994年07月, GEOPHYSICAL RESEARCH LETTERS, 21 (14), 1539 - 1542, doi;web_of_science

    研究論文(学術雑誌)

  • Stratospheric Aerosol Change in the Early Stage of Volcanic Disturbance by the Pinatubo Eruption Observed Over Tsukuba, Japan, (共著)

    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., AMER GEOPHYSICAL UNION, 1993年04月, GEOPHYSICAL RESEARCH LETTERS, 20 (7), 575 - 578, doi;web_of_science

    研究論文(学術雑誌)

  • 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., METEOROLOGICAL SOC JAPAN, 1993年04月, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 71 (2), 285 - 295, doi;web_of_science

    研究論文(学術雑誌)

  • 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 %., METEOROLOGICAL SOC JAPAN, 1993年02月, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 71 (1), 153 - 159, doi;web_of_science

    研究論文(学術雑誌)

  • Stratospheric aerosol increase after eruption of Pinatubo observed with lidar and aureolemeter

    Sachiko Hayashida; Yasuhiro Sasano; Hideaki Nakane; Ichiro Matsui

    1992年, Proceedings of Quadrennial Ozone Symposium

    研究論文(国際会議プロシーディングス)

  • 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., TERRA SCIENTIFIC PUBL CO, 1992年, JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 44 (11), 1071 - 1083, doi;web_of_science

    研究論文(学術雑誌)

  • Volcanic disturbances in the stratospheric aerosol layer over Tsukuba, Japan, observed by the National Institute for Environmental Studies Lidar from 1982 through 1986.(共著)

    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., AMER GEOPHYSICAL UNION, 1991年08月, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 96 (D8), 15469 - 15478, doi;web_of_science

    研究論文(学術雑誌)

  • 成層圏および対流圏オゾン鉛直分布の測定を目的とする多波長オゾンレーザーレーダーの製作

    杉本 伸夫; 笹野 泰弘; 中根 英昭; 林田 佐智子; 松井 一郎; 湊 淳

    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., 公益社団法人 応用物理学会, 1989年, 応用物理, 58 (9), 1385 - 1397, doi;cinii_articles;cinii_books

    研究論文(学術雑誌)

  • 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

    社団法人日本気象学会, 1989年, 天気, 36 (7), 439 - 448

    研究論文(学術雑誌)

  • エルチチョン火山噴火に関連した成層圏エアロゾルの研究

    林田佐智子

    社団法人日本気象学会, 1988年, 天気, 35 (4), 215 - 230

    研究論文(学術雑誌)

  • 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年, Journal of the Meteorological Society of Japan., 65 (2), 303 - 307, doi;web_of_science;url

  • エルチチョン火山噴火が成層圏エアロゾル層に及ぼした影響

    林田佐智子

    日本リモートセンシング学会, 1986年, 日本リモートセンシング学会誌, 6 (6), 125 - 136

    研究論文(学術雑誌)

  • 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年, Journal of the Meteorological Society of Japan., 63 (1), 144 - 149, doi;web_of_science;url

  • 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

    METEOROLOGICAL SOC JAPAN, 1985年, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 63 (3), 465 - 473, web_of_science

    研究論文(学術雑誌)

  • 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

    AMER GEOPHYSICAL UNION, 1983年, GEOPHYSICAL RESEARCH LETTERS, 10 (6), 440 - 442, doi;web_of_science

    研究論文(学術雑誌)

  • 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., 2021年02月24日, Atmospheric Chemistry and Physics, 21 (4), 2795 - 2818, doi;url;rm:research_project_id

    研究論文(学術雑誌)

  • 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., 2021年12月, Scientific Reports, 11 (1), doi;url;url;rm:research_project_id

    研究論文(学術雑誌)

  • 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 Hayoshida; A. P. Dimri

    2021年08月17日, Earth and Space Science, doi;url;rm:research_project_id

    研究論文(学術雑誌)

MISC

  • 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年, 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, 153 - 156

  • 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

    2016年03月, 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

    2016年03月, 第24回 生研フォーラム講演集

  • 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

    日本気象学会, 2015年, 大会講演予講集, 108, 445 - 445, cinii_articles;cinii_books;url

  • 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

    日本気象学会, 2013年, 大会講演予講集, 103, cinii_articles

  • 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

    日本気象学会, 2011年, 大会講演予講集, 100, cinii_articles

  • 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

    日本気象学会, 2006年04月, 日本気象学会 大会講演予講集, 89, cinii_articles

  • 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

    日本気象学会, 2005年05月15日, 大会講演予講集, 87, cinii_articles

  • 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年, Proceedings of SPIE - The International Society for Optical Engineering, 5890, 1 - 8, doi

  • 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

    日本気象学会, 2005年, 日本気象学会 大会講演予講集, 88, cinii_articles

  • 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

    日本気象学会, 2004年10月06日, 大会講演予講集, 86, cinii_articles

  • 衛星データを利用したオゾン層変動の機構解明に関する研究 (3) 衛星データ検証のための極成層圏雲・地上観測データの特性評価

    村山泰啓; 林田佐智子; 林政彦; 村田功

    2003年, 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, 70 - 95, j_global;url

  • Ozone photochemistry in the hartley band: Determination of the quantum yield for singlet oxygen atom production.

    K Takahashi; Y Matsumi; N Taniguchi; S Hayashida

    AMER CHEMICAL SOC, 2002年08月, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 224, U323 - U324, web_of_science

    研究発表ペーパー・要旨(国際会議)

  • 衛星データを利用したオゾン層変動の機構解明に関する研究 (3) 衛星データ検証のための極成層圏雲・地上観測データの特性評価 (環境省地球環境局S)

    村山泰啓; 林田佐智子; 林政彦; 村田功

    2002年, 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, 22 - 27, j_global;url

  • 会長就任のご挨拶

    林田佐智子

    2020年09月, 日本リモートセンシング学会誌, 40 (4), 40_4x1 - 40_4x1

    その他

書籍等出版物

  • 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

    林田佐智子 (, 範囲: 筆頭著者)

    Springer, 2018年, 255-275 (ISBN: 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」

    笠井康子; 林田佐智子; 金谷有剛; 北和之; 入江仁士; n齋藤尚子; 今須良一 (, 範囲: 分担)

    日本気象学会, 2017年05月

  • GOSAT/TANSO 進捗状況報告書・中間成果報告書

    林田佐智子; 竹内渉; 小野朗子; 久慈誠; 笠井康子 (, 範囲: 筆頭著者)

    2015年12月

  • 地球環境学事典

    林田佐智子 (, 範囲: 分担)

    弘文堂, 2010年10月, 504-505

  • 衛星からの大気環境監視

    林田佐智子 (, 範囲: エアロゾル観測)

    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, 2003年, 78-87

  • 大気水圏科学から見た地球温暖化

    林田佐智子 (, 範囲: 分担)

    名古屋大学出版会, 1996年, 179-193頁

  • 地球環境工学ハンドブック

    林田佐智子 (, 範囲: 分担)

    オーム社, 1991年, 582-589頁

  • フロンの環境化学と対策技術

    林田佐智子 (, 範囲: 分担)

    化学総説, 1991年, 第11巻37-60頁

  • 地球規模の環境問題1

    林田佐智子 (, 範囲: 分担)

    中央法規出版, 1990年, 44-64頁

  • 地球温暖化問題ハンドブック

    林田佐智子 (, 範囲: 分担)

    アイピーシー, 1990年, 509-513

講演・口頭発表等

  • Reduction of air pollutants over North-West India observed from space during the Covid-19 lockdown period

    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, 2020年12月07日, 2020年12月, 2020年12月, rm:research_project_id

  • 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)

    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; V. Ambethgar

    日本熱帯農業学会第127回講演会, 2020年03月, 2020年03月17日, 2020年03月17日, rm:research_project_id

  • TROPOMIで観測されたインド上空の二酸化窒素の解析

    新田佳歩; 林田佐智子

    日本リモートセンシング学会 第67回学術講演会, 2019年11月, 2019年11月28日, 2019年11月28日, rm:research_project_id

  • Aakash Project : Challenge toward Clean Air, Public Health and Sustainable Agriculture.

    林田 佐智子

    the 4th World Association of Soil and Water Conservation (WASWAC) Conference, 2019年11月, 2019年11月05日, 2019年11月05日, rm:research_project_id

  • 中国の農業残渣焼却がNOx放出量に与える影響分析

    呂暁萍; 林田佐智子; 山地一代

    第24回大気化学討論会, 2019年11月, 2019年11月05日, 2019年11月05日

  • インド北部におけるレーザメタン計観測結果の解析

    白井玖実; 林田佐智子; 松見豊; 寺尾有希夫; 野村渉平

    日本気象学会2019年度秋季大会, 2019年10月, 2019年10月28日, 2019年10月28日, rm:research_project_id

  • 西シベリアの成層圏メタン高度分布の推定

    杉田考史; 齋藤尚子; 林田佐智子; 大山博史

    日本気象学会2019年度秋季大会, 2019年10月, 2019年10月28日, 2019年10月28日

  • 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

    林田佐智子; 白井玖実; 寺尾有希夫; 野村渉平; 松見豊; 斎藤尚子

    日本気象学会2019年度秋季大会, 2019年10月, 2019年10月28日, 2019年10月28日, rm:research_project_id

  • 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

    日本気象学会2019年度秋季大会, 2019年10月, 2019年10月28日, 2019年10月28日, 日本気象学会, 仙台国際センター, false

  • 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

    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, 2019年09月, 2019年09月18日, 2019年09月18日, rm:research_project_id

  • New project “Aakash” aiming at reduction of crop-residue burning in North India: interdisciplinary approach toward clean air, public health and sustainable agriculture

    S Hayashida; Y. Matsumi; K. Yamaji; M. Kajino; P. K. Patra; Aakash project members

    4th Atmospheric Composition and the Asian Monsoon(ACAM) Workshop, 2019年06月, 2019年06月26日, 2019年06月26日, rm:research_project_id

  • 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

    日本気象学会2018年度秋季大会, 2018年11月, 日本気象学会, 仙台国際センター, false

  • 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)

    齋藤尚子; 犬伏和之; 林田佐智子; Prabir Patra; 山本昭範; 寺尾有希夫

    日本気象学会2018年度秋季大会, 2018年11月, 日本気象学会, 仙台国際センター, false

  • 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

    梶野瑞王; 林田佐智子; 関山剛; 出牛真; 伊藤一輝

    日本気象学会2018年度秋季大会, 2018年11月, 日本気象学会, 仙台国際センター, false

  • 北インドで観測されるメタン季節変動の解析

    林田佐智子; 椙村淑未; 白井玖実; 新田佳歩; 寺尾有希夫; 野村渉平; Prabir K. Patra; 松見豊; 今須良一; S.K. Dhaka

    日本気象学会2018年度秋季大会, 2018年10月, 日本気象学会, 仙台国際センター, false

  • 西シベリア上空 100 hPa の成層圏メタンの季節変動(その 2)

    杉田考史; 齋藤尚子; 林田佐智子; 大山博史

    日本気象学会2018年度秋季大会, 2018年10月, 日本気象学会, 仙台国際センター, false

  • Recent trend of atmospheric emissions due to open crop residue burning in the central east China

    Yamaji. K; X. Lu; S. Hayashida

    2018 joint iCACGP Symposium and IGAC Science Conference, 2018年09月, ICACGP/IGAC, サンポート高松, true

  • Seasonal variation of surface methane observed in North India: An investigation on the contributions of emissions and transport

    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, 2018年09月, ICACGP/IGAC, サンポート高松, true

  • Early season water management strategies mitigate methane and yield-scaled CO2-eq emission from paddy rice soil: Emissions from double rice seasons

    Aung Zaw Oo; Shigeto Sudo; Kazuyuki Inubushi; Masayoshi Mano; Akinori Yamamoto; Keitsuke Ono; Takeshi Osawa; Sachiko Hayashida; P. Elayakumar; V. Ravi

    日本土壌肥料学会2018年度神奈川大会, 2018年08月, 日本大学生物資源科学部, false

  • 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~

    林田佐智子

    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, 2018年01月, 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

  • A new project plan on air quality in Delhi ~ a proposal from Japan~

    S Hayashida

    Enviro-Health Conference 2017 - Air Pollution & Future Strategies with a Focus on the NCT of Delhi, 2017年11月, Delhi, true

  • 中国で観測されたオゾン時空間分布のクラスター解析

    林田佐智子

    第23回大気化学討論会, 2017年10月, 高松, false

  • Climate Change and Introduction to project of Atmospheric Methane from Agriculture in South Asia (AMASA)

    S Hayashida

    Indian Association of Physics Teachers (IAPT), 2017年10月, Gurukula Kangri ANGRI Univ.,Haridwar,, true

  • Origin of the seasonal cycle of columnar methane observed by GOSAT over South Asia

    S Hayashida

    Asia Oceania Geosciences Society, 14th Annual Meeting, 2017年08月, Singapore, true

  • Toward vertical profiling of atmospheric species from space: Recent advances and future prospect

    S Hayashida; N. Chandra; P. K. Patra; N. Saitoh; Y. Kasai

    Asia Oceania Geosciences Society, 14th Annual Meeting, 2017年08月, Singapore, true

  • Origin of the seasonal cycle of columnar methane observed by GOSAT over South Asia

    S Hayashida; N. Chandra; T. Saeki; P. K. Patra

    the 2017 Joint IAPSO-IAMAS-IAGA Assembly, 2017年08月, Cape Town, South Africa, true

  • Clustering of seasonality of the lower tropospheric ozone over central China observed by Ozone Monitoring Instrument (OMI)

    S Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu

    the 2017 Joint IAPSO-IAMAS-IAGA Assembly, 2017年08月, Cape Town, South Africa, true

  • Variabilities in greenhouse gases in South Asia due to monsoon

    P. K. Patra; S. Nomura; Y. Terao; N. Chandra; S. Hayashida

    3rd ACAM Workshop, 2017年06月, Guangzhou, China, true

  • What control seasonal cycle of columnar methane observed by GOSAT over different regions in India?

    Chandra, N; S. Hayashida; T. Saeki; P. K. Patra

    3rd ACAM Workshop, 2017年06月, Guangzhou, China, true

  • Enhancement of the lower tropospheric ozone over China: Comparison of Ozone Monitoring Instrument (OMI) and model simulations

    S Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu

    3rd ACAM Workshop, 2017年06月, Guangzhou, China, true

  • Outstanding seasonality of the lower tropospheric ozone over central China observed by Ozone Monitoring Instrument (OMI)

    S. Hayashida; M. Kajino; M. Deushi; T. Sekiyama; X. Liu

    JpGU-AGU joint meeting 2017, 2017年05月, Makuhari, Japan, true

  • What controls the seasonal cycle of columnar methane observed by GOSAT over different regions in India?

    N. Chandra; S. Hayashida; T. Saeki; P. K. Patra

    JpGU-AGU joint meeting 2017, 2017年05月, true

  • Methane emission estimate from South Asia: AMASA project

    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, 2017年05月, true

  • 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

    犬伏和之; 竹内大樹; 間野正美; 須藤重人; A.Oo; 小野圭介; 山本昭範; 林田佐智子; V.Ravi

    日本熱帯農業学会第121回講演会, 2017年03月

  • インドの水田における温室効果ガスフラックスの測定

    間野正美; 犬伏和之; 須藤重人; A.Z.Oo; 小野圭介; 山本昭範; 林田佐智子; V.Ravi

    日本農業気象学会2017年全国大会, 2017年03月

  • Sustainable Paddy Rice Farming Harmonized With Greenhouse Gas Emission/From AMASA Project In India

    K.Inubushi; P.Patra; S.Hayashida; AMASA members

    7th ISAJ Symposium, 2016年12月

  • Project of Atmospheric Methane from Agriculture in South Asia (AMASA)

    林田佐智子

    Seminar at Physical Research Laboratory, 2016年11月, Physical Research Laboratory, Ahmedabard, India, true

  • Introduction of our recent activities to improve methane emission estimate in South Asia: Project of Atmospheric Methane from Agriculture in South Asia (AMASA)

    林田佐智子

    Aryabhatta Research Institute of Observational Sciences (ARIES) seminor, 2016年11月, true

  • Comparison of OMI Observation with Model Simulations to Study Lower Tropospheric Ozone Enhancement Over Central and Eastern China

    S Hayashida

    GEMS Science Meeting, 2016年10月, Yonsei University, ソウル、韓国, true

  • 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

    出原雅也; 秀森丈寛; 中山智喜; 松見豊; 笹子宏史; 川崎昌博; 高橋けんし; 林田佐智子; 山本昭範; 今須良一

    日本気象学会2016年度秋季大会, 2016年10月

  • 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

    杉田考史; 齋藤尚子; 林田佐智子; 町田敏暢; 笹川基樹

    日本気象学会2016年度秋季大会, 2016年10月

  • GOSATのメタン観測について

    林田佐智子

    GOSAT専門家会議, 2016年09月, 国立環境研究所/JAXA, 東京, false

  • Satellite measurement of the lower tropospheric ozone enhancement over East Asia - elimination of the effect from the upper troposphere and lower stratosphere

    林田佐智子; Makoto Deushi; Kazuyo Yamaji; Mizuo Kajino; Tsuyoshi Thomas Sekiyam; Takashi Maki; Xiong Liu

    IGAC2016, 2016年09月, Breckenridge, USA, true

  • 南部インド水田地帯における大気メタン連続観測

    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年度日本土壌肥料学会佐賀大会, 2016年09月

  • Comparison of methane profiles between GOSAT/TANSO-FTS TIR and aircraft measurements in West Siberia

    林田佐智子

    The 8th GOSAT RA PI Meeting, 2016年06月

  • Comparison of GOSAT CH4 measurements with in-situ measurements and model simulations

    林田佐智子

    The 8th GOSAT RA PI Meeting, 2016年06月

  • Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method

    林田佐智子

    12th International Workshop on Greenhouse Gas Measurements from Space(IWGGMS-12), 2016年06月, true

  • Comparison of GOSAT CH4 measurements with in-situ measurements and model simulations - Applications of GOSAT CH4 data to Agricultural CH4 emission in Asia -

    林田佐智子

    2th International Workshop on Greenhouse Gas Measurements from Space(IWGGMS-12), 2016年06月

  • Proportion of atmospheric methane to carbon dioxide observed by GOSAT over biomass burning regions in Africa

    林田佐智子; 小野朗子

    Japan Geoscience Union MEETING 2016, 2016年05月

  • 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

    日本気象学会2016年度春季大会, 2016年05月, 国立オリンピック記念青少年総合センター, false

  • Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method

    林田佐智子

    Japan Geoscience Union MEETING 2016, 2016年05月, false

  • 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

    日本地球惑星科学連合連合大会 2016年大会, 2016年05月, false

  • 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

    第24回 生研フォーラム, 2016年03月, 東京大学生産科学研究所, 東京, false

  • 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

    第24回 生研フォーラム, 2016年03月, 東京大学生産科学研究所, 東京, false

  • Validation of GOSAT SWIR XCO2 and XCH4 retrieved by PPDF-S method.

    林田佐智子

    2015 AGU Fall Meeting, 2015年12月, American Geophysical Union, San Francisco, true

  • Ozone Enhancement in the Lower Troposphere over Central and Eastern China as Observed from the space

    林田佐智子

    2015 AGU Fall Meeting, 2015年12月, American Geophysical Union, San Francisco, true

  • GOSATメタンデータ利用方法の検討状況について

    林田佐智子

    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, 2015年11月, 奈良女子大学(研究代表者), 奈良女子大学, false

  • Ozone Enhancement in the Lower Troposphere over Central and Eastern China Observed from OMI:Comparison with Emission Inventries, Ground-based Measurements, and Model simulations.

    林田佐智子

    The 6th GEMS Science Team Meeting, 2015年10月, GEMS Science Team, Busan, Korea, true

  • 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

    出原雅也; 秀森丈寛; 中山智喜; 松見豊; 笹子宏史; 川崎昌博; 高橋けんし; 林田佐智子; 山本昭範; 今須良一

    第21回大気化学討論会, 2015年10月, 日本大気化学会, 東京工業大学, false

  • 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

    第21回大気化学討論会, 2015年10月, 日本大気化学会, 東京工業大学, false

  • 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

    気象学会2015年度秋季大会, 2015年10月, 日本気象学会, 京都テルサ, false

  • 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~

    毛家村友里子; 林田佐智子; 小野朗子; 中里真久; 永井智広

    気象学会2015年度秋季大会, 2015年10月, 日本気象学会, 京都テルサ

  • PPDF-S法によるGOSATのCO2,CH4気柱平均混合比データの検証

    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; Oshchepkov Sergey; Bril Andrey; TCCON Partners

    気象学会2015年度秋季大会, 2015年10月, 日本気象学会, false

  • 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?

    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; Prabir Patra

    気象学会2015年度秋季大会, 2015年10月, 日本気象学会, 京都テルサ, false

  • Toward Improvement of Methane Emission Inventory of South Asia from GOSAT

    林田佐智子

    International Workshop on Land Use/Cover Changes and Air Pollution in Asia, 2015年08月, true

  • Ozone enhancement in the lower troposphere over East Asia observed from a space-borne ultraviolet spectrometer

    林田佐智子

    International Workshop on Land Use/Cover Changes and Air Pollution in Asia, 2015年08月, Bogor, Indonesia, true

  • Ozone enhancement in the lower troposphere over East Asia observed from a space-borne ultraviolet spectrometer

    林田佐智子

    Second Workshop on Atmospheric Composition and the Asian Monsoon (ACAM), 2015年06月, Bangkok, Thailand, true

  • 東アジア上空での大気オゾンの変動について

    林田佐智子

    気象学会春季大会, 2015年05月, 日本気象学会, つくば国際会議場(エポカルつくば), false

  • 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-,

    杉田考史; 齋藤尚子; 林田佐智子; 町田敏暢

    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., 2015年05月, 日本地球惑星科学連合, 幕張, false

  • 人工衛星データに対するカゲ指数の応用例

    小野朗子; 林田佐智子

    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」, 2015年03月, 東京大学生産科学技術研究所, false

  • 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

    林田佐智子

    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」, 2015年03月, 東京大学生産科学技術研究所, false

  • Ozone Enhancement in the Lower Troposphere over East Asia Observed by OMI: Evidence of Transboundary Pollution Transport from China to Korea and Japan

    林田佐智子

    AGU fall meeting, 2014年12月, American Geophysical Union, San Francisco, true

  • 衛星データに適用したカゲ指数の解析結果

    小野朗子; 林田佐智子; 小野厚夫

    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, 2014年11月, 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

  • Monitoring of atmospheric Methane from GOSAT over Monsoon Asia

    林田佐智子

    Low Carbon Asia Research Network (LoCARNet) 3rd Annual Meeting, 2014年11月, 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

  • GOSAT SWIR データ解析状況

    林田佐智子

    環境省環境研究総合推進費アドバイザリーボード会合, 2014年11月, 奈良女子大学 人間文化研究家会議室, false

  • 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

    茅場聡子; 林田佐智子; 小野朗子

    日本気象学会2014年度秋季大会, 2014年10月, 日本気象学会, 福岡国際会議場

  • 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

    毛家村友里子; 林田佐智子; 小野朗子; 中里真久; 永井智広

    日本気象学会2014年度秋季大会, 2014年10月, 日本気象学会, 福岡国際会議場, false

  • 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

    長瀬友美; 林田佐智子; 今須良一; 丹羽洋介

    日本気象学会2014年度秋季大会, 2014年10月, 日本気象学会, 福岡国際会議場, false

  • 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

    林田佐智子

    第20回大気化学討論会, 2014年10月, 日本大気化学会, 府中グリーンプラザ, false

  • Methane concentrations over Asia: from satellite and in-situ observation

    林田佐智子

    Joint one Day international conference of Rajdhani College and University of Tokyo Remote Sensing of Earth’s atmosphere, 2014年09月, Rajdhani College, University of Delhi and Tokyo University, Delhi, India, true

  • Methane concentrations over Asia

    林田佐智子

    Seminar at S.P.C. (P.G.) College Baghpat, 2014年09月, S.P.C. (P.G.) College Baghpat, S.P.C. (P.G.) College Baghpat, true

  • Observation of ozone enhancement in the lower troposphere over East Asia from a Ozone Monitoring Instrument (OMI) ultraviolet spectrometer

    林田佐智子

    the EOS Aura Science Team Meeting, 2014年09月, NASA, College Park, Maryland

  • Tropospheric ozone climatology since 1995 over East Asia

    林田佐智子

    iCACGP/IGAC2014, 2014年09月, iCACGP/IGAC, Natal, Brazil, true

  • Comparison of methane concentrations observed from space with model simulation over Monsoon Asia

    林田佐智子

    iCACGP/IGAC2014, 2014年09月, iCACGP/IGAC, Natal, Brazil, true

  • Ozone Enhancement in the Lowermost Atmosphere Observed Over East and Central China Observed by the Ozone Monitoring Instrument (OMI),

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, true

  • Validation of GOSAT SWIR xCH4 using TCCON and Airborne Measurement

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, 札幌, true

  • Development of Vegetation Index for Grasping the Water

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, 札幌, true

  • Methane Concentration Over Monsoon Asia Observed from Space: Comparison with Model Simulation,

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, 札幌, true

  • Observations of atmospheric methane concentrations over rice paddies at Karnal, India: Comparison with Nainital, India and Comilla, Bangladesh,

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, 札幌, true

  • Correlation Between O3 and HCl in the Lower Stratosphere as Observed by SMILES

    林田佐智子

    Asia Oceania Geoscience Society meeting 2014, 2014年07月, Asia Oceania Geoscience Society, 札幌, true

  • Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia

    林田佐智子

    GOSAT-PI meeting, 2014年06月, JAXA・環境省・国立環境研究所, Tsukuba, true

  • 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,

    小野朗子; 林田佐智子; 小野厚夫

    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, 2014年05月, 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

  • 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)

    岩崎千沙; 林田佐智子; 小野朗子; 町田敏暢

    日本地球惑星科学連合2014年大会 大気化学セッション, 2014年04月, 日本地球惑星連合会(JpGU), パシフィコ横浜, false

  • 中国華北平原におけるCOと火災件数の関係

    茅場聡子; 林田佐智子; 小野朗子

    日本地球惑星科学連合2014年大会 大気化学セッション, 2014年04月, 日本地球惑星連合会(JpGU), パシフィコ横浜, false

  • 中国から日本へのオゾン越境汚染の事例解析

    毛家村友里子; 林田佐智子

    日本地球惑星科学連合2014年大会 大気化学セッション, 2014年04月, 日本地球惑星連合会(JpGU), パシフィコ横浜, false

  • New products of GOSAT/TANSO-FTS TIR CO2 and CH4 profiles: Algorithm and initial validation results

    林田佐智子

    AGU Fall Meeting, 2013年12月, Moscone Center, USA, true

  • GOSAT SWIR データ解析状況

    林田佐智子

    環境省環境研究総合推進費アドバイザリーボード会合, 2013年11月, 奈良女子大学 人間文化研究家会議室, false

  • 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

    林田佐智子

    第19回大気化学討論会, 2013年11月, 石川県, false

  • 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

    黒川歌夕; 林田佐智子

    日本気象学会2013年度秋季大会, 2013年11月, 仙台国際センター, false

  • 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

    池田礼佳; 永島達也; 林田佐智子

    日本気象学会2013年度秋季大会, 2013年11月, 仙台国際センター, false

  • 人工衛星データに対するカゲ指数の応用例

    小野朗子; 林田佐智子; 小野厚夫

    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, 2013年11月, 日本大学工学部50周年記念館, false

  • Tropospheric ozone over East Asia - climatology and satellite observation

    林田佐智子

    The 4th GEMS Science Meeting, 2013年10月, Seoul, Korea, true

  • Methane concentrations over Monsoon Asia as observed by satellite sensors: Signals of methane emission from rice cultivation

    林田佐智子

    Aryabhatta Research Institute of Observational Sciences (ARIES), 2013年08月, 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

  • Methane concentrations observed from space over monsoon Asia: Signals of methane emissions from rice cultivation and biomass burning

    林田佐智子

    Workshop on Atmospheric Composition and the Asian Summer Monsoon, 2013年06月, Kathmandu, Nepal, true

  • 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

    山本めぐみ; 林田佐智子; 町田敏暢

    日本気象学会2013年度春季大会, 2013年05月, 国立オリンピック記念青少年総合センター, false

  • 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

    長瀬友美; 林田佐智子; 小野朗子; 竹内渉

    日本気象学会2013年度春季大会, 2013年05月, 国立オリンピック記念青少年総合センター, false

  • Comparison of GOSAT TIR CH4 Profiles with AIRS-V6 and NOAA IASI CH4 Products

    林田佐智子

    The 5th GOSAT RA PI meeting, 2013年05月, Yokohama Symposia, true

  • Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia

    林田佐智子

    The 5th GOSAT RA PI meeting, 2013年05月, Yokohama Symposia, false

  • Comparison of GOSAT XCH4 and airborne measurements over Siberia

    林田佐智子

    9th International Workshop on Greenhouse Gas Measurements from Space, 2013年05月, Yokohama Symposia, true

  • Characterization of biomass burning from combined analysis using SCIAMACHY, GOSAT and MOPITT

    林田佐智子

    9th International Workshop on Greenhouse Gas Measurements from Space, 2013年05月, Yokohama Symposia, true

  • Algorithm improvement toward better retrieval of CO2 and CH4 profiles from GOSAT/TANSO-FTS thermal infrared spectra

    林田佐智子

    AGU Fall Meeting, 2012年12月, true

  • Comparison of atmospheric CH4 concentration observed by GOSAT and in-situ measurements in Thailand and India

    林田佐智子

    AGU Fall Meeting, 2012年12月, true

  • GOSAT SWIR データ解析状況

    林田佐智子

    環境省環境研究総合推進費アドバイザリーボード会合, 2012年11月, 国際奈良学セミナーハウス

  • 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

    林田佐智子; 石川沙穂; 東良美; 小野朗子; 久慈誠

    日本気象学会2012年度秋季大会, 2012年10月, false

  • 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)~

    林田佐智子; 齋藤尚子; 犬伏和之; 寺尾有希夫; Shamil Maksyutov; 町田敏暢; 笹川基樹; 杉田考史; 横田達也; 向井人史

    日本気象学会2012年度秋季大会, 2012年10月, false

  • 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

    石川沙穂; 林田佐智子; 小野朗子

    日本気象学会2012年度秋季大会, 2012年10月, false

  • 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

    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; 齋藤尚子; 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

    日本気象学会2012年度秋季大会, 2012年10月, false

  • 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

    齋藤尚子; 今須良一; 杉田考史; 林田佐智子; 塩見慶

    日本気象学会2012年度秋季大会, 2012年10月

  • 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

    白崎瑞穂; 池田礼佳; 黒川歌夕; 中里真久; 林田佐智子

    日本気象学会2012年度秋季大会, 2012年10月

  • 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

    杉田考史; 齋藤尚子; 林田佐智子

    日本気象学会2012年度秋季大会, 2012年10月, false

  • 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

    齋藤尚子; 今須良一; 杉田孝史; 林田佐智子

    第18回大気化学討論会, 2012年10月, false

  • 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~

    林田佐智子; 齋藤尚子; 犬伏和之; 寺尾有希夫; Shamil Maksyutov; 町田敏暢; 笹川基樹; 杉田孝史; 横田達也; 向井人史; 野原精一

    第18回大気化学討論会, 2012年10月, false

  • Plan of Japanese ISS mission of Atmospheric Chemistry (APOLLO)

    林田佐智子

    The 3rd GEMS Workshop, 2012年10月, Korea

  • Atmospheric CH4 distribution observed by satellites

    林田佐智子

    Central Soil Salinity Research Institute, 2012年08月, Central Soil Salinity Research Institute, India, true

  • Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia

    林田佐智子

    The 4th GOSAT RA PI Meeting, 2012年06月, true

  • Comparison of CH4 retrieved from GOSAT TANSO TIR, AIRS and aircraft measurements

    林田佐智子

    The 4th GOSAT RA PI Meeting, 2012年06月, true

  • Characteristics of methane concentration over Monsoon Asia: Insight from satellite oebservations

    林田佐智子

    JSPS-NRCT seminar, 2012年06月, Thailand

  • SMILES/MLS/ACE-FTSによる南極極渦崩壊前のHCl/C/y比

    杉田孝史; 笠井康子; 寺尾有希夫; 林田佐智子

    日本地球惑星科学連合2012年大会, 2012年05月, 幕張メッセ

  • 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

    高倉典子; 林田佐智子; 永島達也; 須藤健悟

    日本気象学会2011年度秋期大会, 2011年11月, false

  • 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

    東野美和; 那須侑子; 林田佐智子; 斎藤尚子; 横田達也; 吉田幸生; 町田敏暢; 松枝秀和; 今須良一; 塩見慶

    日本気象学会2011年度秋期大会, 2011年11月, false

  • 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

    吉崎早苗; 林田佐智子; 竹内渉

    日本気象学会2011年度秋期大会, 2011年11月, false

  • 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

    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

    日本気象学会2011年度秋期大会, 2011年11月, false

  • 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

    那須侑子; 東野美和; 齋藤尚子; 林田佐智子; 今須良一; 塩見慶

    第17回大気化学討論会, 2011年10月, false

  • 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

    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

    第17回大気化学討論会, 2011年10月, false

  • 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

    杉田考史; 笠井康子; 寺尾有希夫; 林田佐智子

    第17回大気化学討論会, 2011年10月, false

  • 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

    高倉典子; 永島達也; 須藤健悟; 林田佐智子

    第17回大気化学討論会, 2011年10月, false

  • 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

    吉崎早苗; 林田佐智子; 石川沙穂; 衛藤聡美; 竹内渉

    第17回大気化学討論会, 2011年10月, false

  • 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

    斎藤尚子; 新美宏昭; 那須侑子; 東野美和; 林田佐智子; 今須良一; 塩見慶; 松枝秀和; 町田敏暢

    第17回大気化学討論会, 2011年10月, false

  • CO2 and CH4 concentrations in the middle and upper tropospheric from GOSAT/TANSO-FTS TIR

    林田佐智子

    IGARSS, 2011年07月, true

  • Middle and upper tropospheric CH4 concentrations derived from GOSAT/TANSO-FTS TIR

    林田佐智子

    The XXV IUGG General Assembly, 2011年06月, true

  • Enhanced Mid-latitude Tropospheric Column Ozone over East Asia Associated with the Subtropical Jet

    林田佐智子

    The XXV IUGG General Assembly, 2011年06月, true

  • Middle and upper tropospheric CO2 and CH4 concentrations retrieved from GOSAT/TANSO-FTS Band4

    林田佐智子

    IWGGMS7, 2011年05月, true

  • A feasibility study for the monitoring of diurnal variations of the tropospheric NO2 over Tokyo from a geostationary satellite

    林田佐智子

    AGU Fall Meeting, 2010年12月, true

  • Correlation between subtropical jet and the Enhanced-Tropospheric Columnar Ozone (E-TCO) belt

    林田佐智子

    AGU Fall Meeting, 2010年12月, true

  • Atmospheric methane observed from space over the Asian monsoon: implications for emission from Asian rice paddies

    林田佐智子

    AGU Fall Meeting, 2010年12月, true

  • 東アジア域の対流圏オゾンのMOZAICデータ解析

    潮平佳世子; 林田佐智子

    日本気象学会2010年度秋期大会, 2010年10月

  • 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-

    中谷彩; 林田佐智子

    日本気象学会2010年度秋期大会, 2010年10月, false

  • 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

    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

    日本気象学会2010年度秋期大会, 2010年10月, false

  • 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-

    林田佐智子; 吉崎早苗; 久慈誠

    日本気象学会2010年度秋期大会, 2010年10月, false

  • Characterization of the methane source from rice paddies in Monsoon Asia~ Bottom-up approach and observation from space ~

    林田佐智子

    Seminar at Faculty of Agriculture, Kohn Kaen University, 2010年07月, Faculty of Agriculture, Kohn Kaen University, タイ、コンケン大学, true

  • Comparison of the CH4 data observed with GOSAT TANSO-FTS-SWIR and SCIAMACHY

    林田佐智子

    ASSFTS 15th Workshop, 2010年05月, true

  • 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

    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

    日本気象学会2010年度春期大会, 2010年05月, false

  • Quantitative evaluations of inorganic chlorine chemistry in the stratosphere using a photochemical model

    林田佐智子

    SMILES International Workshop 2010, 2010年03月, true

  • Analysis of GOSAT methane data to characterize the methane source from rice paddies in Asia

    林田佐智子

    GOSAT RA PI Meeting, 2010年01月, true

  • 南インド農耕地土壌における土色と鉄含量およびメタン生成との関係

    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; V. Ambethga

    日本熱帯農業学会第129 回講演会, 2021年03月16日, 2021年03月16日, 2021年03月16日, 熱農要旨(谷道).pdf, パスワードがあり, rm:research_project_id

  • Detection of significant change in nitrogen oxides concentration and emission during COVID-19 lockdown in North India

    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), 2020年12月15日, 2020年12月, 2020年12月, rm:research_project_id

  • Detection of Change in the Aerosol distribution over North-West India during the Covid-19 Lockdown period

    Nguyen, T. H; S. Hayashida; P. Misra; P. Khatri; Y. Matsumi; T. Nakayama; S. K. Dhaka; A. P. Dimri

    AGU Fall Meeting 2020 (Online), 2020年12月07日, 2020年12月, 2020年12月, rm:research_project_id

  • “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

    Hayashida, S

    A Community Response Forum, NASA, 2020年11月12日, 2020年11月, 2020年11月, rm:research_project_id

  • Detection of air pollution reduction due to a change of anthropogenic activities after COVID-19 pandemic over south Asia

    Sachiko Hayashida

    第29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」, 2021年03月12日, 2021年03月11日, 2021年03月11日, rm:research_project_id

  • COVID-19 lockdown impacts on NOx emission: top-down estimation over North India

    Prakhar Misra

    第29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」, 2021年03月12日, 2021年03月11日, 2021年03月11日, rm:research_project_id

  • クリーンな空気、公衆衛生、持続可能な農業に向けた 社会変革の道筋ー北インドの事例

    林田佐智子

    長崎大学/地球研/国環研による プラネタリーヘルスに関するシンポジウム, 2021年02月18日, 2021年02月18日, 2021年02月18日, rm:research_project_id

  • TROPOMIとOMIで観測された対流圏二酸化窒素の南アジアにおける比較

    新田佳歩; 林田佐智子

    第69回(令和2年度秋季)学術講演会, 2020年12月22日, 2020年12月21日, 2020年12月21日, rm:research_project_id

  • Concept of mission DELHIS: why we want to estimate the anthropogenic emission of air pollutants in Delhi and how

    Sachiko Hayashida

    Northern India Air Pollution Meeting, 2020年08月23日, 2020年08月23日, 2020年08月23日, rm:research_project_id

  • Remote Sensing in the era of “Anthropocene” Observation of atmospheric trace species emitted by human activities

    林田佐智子

    ISRS2021, 2021年05月26日, 2021年05月26日, 2021年05月26日, rm:research_project_id

担当経験のある科目(授業)

  • 地球大気環境科学セミナーⅠ (奈良女子大学)

  • 地球大気環境科学特論Ⅰ (奈良女子大学)

  • 地球温暖化問題概論 (奈良女子大学)

  • 実践環境科学英語演習Ⅱ (奈良女子大学)

  • 実践環境科学英語演習Ⅰ (奈良女子大学)

  • 地球環境科学1(B) (奈良女子大学)

  • 環境科学計算機実験 (奈良女子大学)

  • 実践環境科学英語演習 (奈良女子大学)

  • 大気化学入門 (奈良女子大学)

  • 地球環境科学1B (奈良女子大学)

  • 専門職論 (奈良女子大学)

  • 陸域画像処理特論演習 (奈良女子大学)

  • 環境科学概論 (奈良女子大学)

  • 化学生命環境学入門 (奈良女子大学)

  • 地球科学概説2 (奈良女子大学)

  • 地球環境科学1 (奈良女子大学)

  • 複合情報学特別講義Ⅰ (奈良女子大学)

  • プロジェクト演習E (奈良女子大学)

  • 地球科学2 (奈良女子大学)

  • リモートセンシング特論演習II (奈良女子大学)

  • 情報科学特別講義2 (奈良女子大学)

  • 情報科学特別講義1 (奈良女子大学)

  • 数値計算法 (奈良女子大学)

  • 情報科学特別講義1 (奈良女子大学)

  • 地球大気観測特論演習 (奈良女子大学)

  • 地球大気観測特論 (奈良女子大学)

  • 地球大気組成変動特論演習 (奈良女子大学)

  • 地球大気組成変動特論 (奈良女子大学)

  • 地球環境情報学 (奈良女子大学)

  • 計測情報学 (奈良女子大学)

  • 地球環境変動シミュレーション特論 (奈良女子大学)

  • 地球環境情報特論 (奈良女子大学)

所属学協会

  • 日本エアロゾル学会

  • 日本大気化学会

  • 日本地球惑星連合会

  • 米国地球物理学連合学会

  • 日本気象学会

  • 日本リモートセンシング学会

Works(作品等)

  • 成層圏および対流圏オゾン鉛直分布の測定を目的とする多波長オゾンレーザーレーダーの製作

    林田佐智子; 杉本伸夫; 笹野泰弘; 松井一郎; 中根英昭; 秋本肇

    1987年 - 1988年



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