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  1. 139 大気海洋研究所
  2. 10 気候システム研究系
  3. 1391010 学術雑誌
  1. 0 資料タイプ別
  2. 10 学術雑誌論文
  3. 014 自然科学

Overview of the Atmospheric Brown Cloud East Asian Regional Experiment 2005 and a study of the aerosol direct radiative forcing in east Asia

http://hdl.handle.net/2261/51897
http://hdl.handle.net/2261/51897
ba7fe635-dbf5-4990-ab95-fbce6995028f
名前 / ファイル ライセンス アクション
Nakajima2007JGRA_H24P121.pdf Nakajima2007JGRA_H24P121.pdf (2.0 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-01-10
タイトル
タイトル Overview of the Atmospheric Brown Cloud East Asian Regional Experiment 2005 and a study of the aerosol direct radiative forcing in east Asia
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Nakajima, Teruyuki

× Nakajima, Teruyuki

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Nakajima, Teruyuki

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Yoon, Soon-Chang

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Yoon, Soon-Chang

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Ramanathan, Veerabhadran

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Ramanathan, Veerabhadran

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Shi, Guang-Yu

× Shi, Guang-Yu

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Shi, Guang-Yu

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Takemura, Toshihiko

× Takemura, Toshihiko

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Takemura, Toshihiko

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Higurashi, Akiko

× Higurashi, Akiko

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Higurashi, Akiko

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Takamura, Tamio

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Takamura, Tamio

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Aoki, Kazuma

× Aoki, Kazuma

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Aoki, Kazuma

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Sohn, Byung-Ju

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Sohn, Byung-Ju

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Kim, Sang-Woo

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Kim, Sang-Woo

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Tsuruta, Haruo

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Tsuruta, Haruo

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Sugimoto, Nobuo

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Sugimoto, Nobuo

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Shimizu, Atsushi

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Shimizu, Atsushi

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Tanimoto, Hiroshi

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Tanimoto, Hiroshi

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Sawa, Yousuke

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Sawa, Yousuke

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Lin, Neng-Huei

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Lin, Neng-Huei

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Lee, Chung-Te

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Lee, Chung-Te

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Goto, Daisuke

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Goto, Daisuke

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Schutgens, Nick

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Schutgens, Nick

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著者所属
著者所属 Center for Climate System Research, University of Tokyo
著者所属
著者所属 School of Earth and Environmental Sciences, Seoul National University
著者所属
著者所属 Scripps Institution of Oceanography, University of California
著者所属
著者所属 Institute of Atmospheric Physics
著者所属
著者所属 Research Institute for Applied Mechanics, Kyushu University
著者所属
著者所属 Atmospheric Environment Division, National Institute for Environmental Studies
著者所属
著者所属 Center for Environmental Remote Sensing, Chiba University
著者所属
著者所属 Department of Earth Science, Faculty of Sciences, University of Toyama
著者所属
著者所属 Geochemical Research Department, Meteorological Research Institute
著者所属
著者所属 Department of Atmospheric Sciences, National Central University
著者所属
著者所属 Graduate Institute of Environmental Engineering, National Central University
抄録
内容記述タイプ Abstract
内容記述 This article introduces an international regional experiment, East Asian Regional Experiment 2005 (EAREX 2005), carried out in March-April 2005 in the east Asian region, as one of the first phase regional experiments under the UNEP Atmospheric Brown Cloud (ABC) project, and discusses some outstanding features of aerosol characteristics and its direct radiative forcing in the east Asian region, with some comparison with the results obtained in another ABC early phase regional experiment, ABC Maldives Monsoon Experiment (APMEX) conducted in the south Asian region. Time series of aerosol optical thickness (AOT), single scattering albedo (SSA), aerosol extinction cross section profile and CO concentration shows that air pollutants and mineral dust were transported every 5 to 7 days in the EAREX region to produce SSA values at wavelength of 700 nm from 0.86 to 0.96 and large clear-sky shortwave forcing efficiency at 500 nm from 60 Wm(-2) to 90 Wm(-2), though there are some unexplained inconsistencies depending on the evaluation method. The simulated whole-sky total forcing in the EAREX region is -1 to -2 Wm(-2) at TOA and -2 to -10 Wm(-2) at surface in March 2005 which is smaller in magnitude than in the APMEX region, mainly because of large cloud fraction in this region (0.70 at Gosan versus 0.51 at Hanimadhoo in the ISCCP total cloud fraction). We suggest there may be an underestimation of the forcing due to overestimation of the simulated cloudiness and aerosol scale height. On the other hand, the possible error in the simulated surface albedo may cause an overestimation of the magnitude of the forcing over the land area. We also propose simple formulae for shortwave radiative forcing to understand the role of aerosol parameters and surface condition to determine the aerosol forcing. Such simple formulae are useful to check the consistency among the observed quantities.
書誌情報 Journal of geophysical research. D

巻 112, 号 24, p. D24S91, 発行日 2007-12-29
ISSN
収録物識別子タイプ ISSN
収録物識別子 01480227
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10819765
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1029/2007JD009009
権利
権利情報 Copyright 2007 by the American Geophysical Union.
日本十進分類法
主題Scheme NDC
主題 451
出版者
出版者 American Geophysical Union
異版である
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://doi.org/10.1029/2007JD009009
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