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A study of the direct and indirect effects of aerosols using global satellite data sets of aerosol and cloud parameters
http://hdl.handle.net/2261/37054
http://hdl.handle.net/2261/37054d0921bd7-6d64-4104-ab1f-c4e5ee1cbeb2
名前 / ファイル | ライセンス | アクション |
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2003_study.pdf (7.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-01-16 | |||||
タイトル | ||||||
タイトル | A study of the direct and indirect effects of aerosols using global satellite data sets of aerosol and cloud parameters | |||||
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 |
Sekiguchi, Miho
× Sekiguchi, Miho× Nakajima, Teruyuki× Suzuki, Kentaroh× Kawamoto, Kazuaki× Higurashi, Akiko× Rosenfeld, Daniel× Sano, Itaru× Mukai, Sonoyo |
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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 | Research Institute for Humanity and Nature | |||||
著者所属 | ||||||
著者所属 | National Institutes for Environmental Studies | |||||
著者所属 | ||||||
著者所属 | Hebrew University of Jerusalem | |||||
著者所属 | ||||||
著者所属 | Faculty of Science and Technology, Kinki University | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The present study investigated the correlations between aerosol and cloud parameters derived from satellite remote sensing for evaluating the radiative forcing of the aerosol indirect effect. The global statistics showed that the effective particle radius and the optical thickness of low clouds correlate well with the column number concentration of the aerosol particles, indicating an aerosol indirect effect. A correlation of the cloud fraction with the aerosol number was also seen, whereas we could not find a significant correlation of the cloud-top temperature with the column aerosol number. Furthermore, the regional statistics presented that positive correlations between the cloud optical thickness and cloud fraction with the aerosol column number concentration exist in most regions consistent with the global mean statistics. However, the effective cloud particle radius showed a tendency similar to the global correlation only around the seashore regions. Using these correlations and assuming that the aerosol column number concentration has increased by 30% from the preindustrial era, the total radiative forcing of the aerosol indirect effect was evaluated to be about −0.6 to −1.2 W m−2. The radiative forcing of the aerosol direct effect from the satellite-retrieved parameters was also evaluated as −0.4 W m−2 over the ocean. The cloud-top temperature was found to be insensitive to the change in the aerosol number, although there was a distinct negative correlation between the aerosol number and cloud temperature at which the cloud particle grows to a radius of 14 μm. This particular dependency of the cloud temperature suggests that aerosols acts on clouds so as to change cloud particle size near the cloud top, optical thickness, and fraction but to keep their cloud-top temperature without causing a significant longwave radiative forcing | |||||
書誌情報 |
Journal of geophysical research. D 巻 108, 号 22, p. 4(1)-4-(15), 発行日 2003-11-21 |
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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/10.1029/2002JD003359 | |||||
権利 | ||||||
権利情報 | Copyright 2003 by the American Geophysical Union | |||||
日本十進分類法 | ||||||
主題 | 451 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | American Geophysical Union | |||||
関係URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.agu.org/journals/jd/ |