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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

Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part 1: Theory

http://hdl.handle.net/2261/51866
http://hdl.handle.net/2261/51866
0e3da9ec-ed28-4034-80bd-dc539c04fe2d
名前 / ファイル ライセンス アクション
Nakajima1990JAS_H24P20.pdf Nakajima1990JAS_H24P20.pdf (9.7 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 Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part 1: Theory
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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King, Michael D.

× King, Michael D.

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King, Michael D.

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著者所属
著者所属 Laboratory for Atmospheres, NASA Goddard Space Flight Center
抄録
内容記述タイプ Abstract
内容記述 A method is presented for determining the optical thickness and effective particle radius of stratiform cloud layers from reflected solar radiation measurements. A detailed study is presented which shows that the cloud optical thickness (τc) and effective particle radius (re) of water clouds can be determined solely from reflection function measurements at 0.75 and 2.16 μm, provided τc ≳ 4 and re ≳ 6 μm. For optically thin clouds the retrieval becomes ambiguous, resulting in two possible solutions for the effective radius and optical thickness. Adding a third channel near 1.65 μm does not improve the situation noticeably, whereas the addition of a channel near 3.70 μm reduces the ambiguity in deriving the effective radius. The effective radius determined by the above procedure corresponds to the droplet radius at some optical depth within the cloud layer. For clouds having τc ≳ 8, the effective radius determined using the 0.75 and 2.16 μm channels can be regarded as 85%-95% of the radius at cloud top, which corresponds in turn to an optical depth 20%-40% of the total optical thickness of the cloud layer.
書誌情報 Journal of the atmospheric sciences

巻 47, 号 15, p. 1878-1893, 発行日 1990-08-01
ISSN
収録物識別子タイプ ISSN
収録物識別子 00224928
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00693875
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1175/1520-0469(1990)047<1878:DOTOTA>2.0.CO;2
権利
権利情報 © Copyright 1990 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108, as revised by P.L. 94-553) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a web site or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. Additional details are provided in the AMS Copyright Policy, available on the AMS Web site located at (http://www.ametsoc.org/) or from the AMS at 617-227-2425 or copyright@ametsoc.org.
日本十進分類法
主題Scheme NDC
主題 451
出版者
出版者 American Meteorological Society
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/10.1175/1520-0469(1990)047<1878:DOTOTA>2.0.CO;2
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