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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

The microphysical feedback of cirrus cluod in climate change

http://hdl.handle.net/2261/26645
4f5c36b4-c03d-4fed-a6ff-4b25c3757795
名前 / ファイル ライセンス アクション
1993_microphysical.pdf 1993_microphysical.pdf (5.0 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-02-22
タイトル
タイトル The microphysical feedback of cirrus cluod in climate change
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
その他のタイトル
その他のタイトル 気候変動における巻雲の微物理課程のフィードバック
著者 Suzuki, Tsuneaki

× Suzuki, Tsuneaki

WEKO 3892

Suzuki, Tsuneaki

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Tanaka, Masayuki

× Tanaka, Masayuki

WEKO 3893

Tanaka, Masayuki

Search repository
Nakajima, Teruyuki

× Nakajima, Teruyuki

WEKO 3894

Nakajima, Teruyuki

Search repository
著者別名
識別子
識別子 3895
識別子Scheme WEKO
姓名
姓名 鈴木, 恒明
著者別名
識別子
識別子 3896
識別子Scheme WEKO
姓名
姓名 田中, 正之
著者別名
識別子
識別子 3897
識別子Scheme WEKO
姓名
姓名 中島, 映至
著者所属
著者所属 Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University
著者所属
著者所属 Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University
著者所属
著者所属 Center for Climate System Research, University of Tokyo
著者所属
著者所属 東北大学理学部大気海洋変動観測研究センター
著者所属
著者所属 東京大学気候システム研究センター
抄録
内容記述タイプ Abstract
内容記述 The feedback effects of cirrus clouds in climate change are investigated, taking account of the temperature dependence of both ice water content and size distribution. The sensitivity parameter which is defined as a sum of partial derivatives is calculated with an accurate radiation code applying the 4-stream discrete-ordinates method and the method of exponential-sum fitting for gaseous transmission (ESFT). Microphysical properties of cirrus clouds are parameterized in terms of the cloud temperature from the data of aircraft observations. The value of ∂H/∂[IWC] x ∂[IWC]/∂T, i.e., a product of partial derivatives associated with ice water content feedback, is estimated to be 1.3-2.3 Wm-2°C-1, meaning a positive feedback effect, and the value of ∂H/∂[SD] x ∂[SD]/∂T which is associated with size distribution feedback is estimated to be -0.1--1.8 Wm-2°C-1, meaning a negative feedback effect. The positive ice water content feedback is significantly cancelled by the negative size distribution feedback especially at cloud temperature in the vicinity of -45°C. It is thus shown that the temperature dependence not only of ice water content but also of size distribution is important to estimate the microphysical feedback of cirrus cloud
抄録
内容記述タイプ Abstract
内容記述 巻雲の雲氷量と粒径分布の温度依存性を考慮して、気候変動における巻雲のフィードバック効果を調べた。偏微分の和として定義される敏感度パラメーターを、4ストリームのディスクリートーオーディネイト法とESFT法を用いて作成した高精度の放射コードで計算した。その際、飛行機観測データに基づいて雲氷量のフィードバックに関係した偏微分∂H/∂[IWC]×∂[IWC]/∂Tの値は 1.3-2.3Wm-2℃-1であり、雲氷量の温度依存性は正のフィードバックを引き起こす。一方、粒径分布に関係した偏微分 ∂H/∂[SD]×∂[SD]/∂Tの値は -0.1--1.8Wm-2℃-1であり、これは粒径分布の温度依存性によるフィードバックが負であることを意味する。特に巻雲が -45℃付近に存在する場合、雲氷量の正のフィードバックは粒径分布の負のフードバックによって相殺される。雲氷量のみならず粒径分布の温度依存性が巻雲の微物理課程のフィードバックの評価において重要であることを示した。
書誌情報 Journal of the Meteorological Society of Japan. Ser. II

巻 71, 号 6, p. 701-713, 発行日 1993-12
ISSN
収録物識別子タイプ ISSN
収録物識別子 00261165
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00702524
日本十進分類法
主題 451
主題Scheme NDC
出版者
出版者 Meteorological Society of Japan
出版者別名
社団法人 日本気象学会
関係URI
関連識別子
識別子タイプ URI
関連識別子 http://www.jstage.jst.go.jp/browse/jmsj/-char/en
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