| DOI: | 10.1175/JCLI-D-14-00288.1
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| Scopus记录号: | 2-s2.0-84919629576
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| 论文题名: | Observed Southern Ocean cloud properties and shortwave reflection. Part II: Phase changes and low cloud feedback |
| 作者: | Mccoy D.T.; Hartmann D.L.; Grosvenor D.P.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2014
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| 卷: | 27, 期:23 | | 起始页码: | 8858
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| 结束页码: | 8868
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| 语种: | 英语
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| Scopus关键词: | Ice
; Liquids
; Optical properties
; Remote sensing
; Solar radiation
; Sun
; Climate warming
; Cloud feedbacks
; Cloud optical depth
; Cloud properties
; Mid-latitude clouds
; Remote sensing instruments
; Short-wave radiation
; Southern ocean
; Climate models
; climate change
; climate feedback
; climate modeling
; cloud
; global warming
; optical depth
; phase transition
; remote sensing
; shortwave radiation
; solar radiation
; Southern Ocean
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| 英文摘要: | Climate models produce an increase in cloud optical depth in midlatitudes associated with climate warming, but the magnitude of this increase and its impact on reflected solar radiation vary from model to model. Transition from ice to liquid in midlatitude clouds is thought to be one mechanism for producing increased cloud optical depth. Here observations of cloud properties are used from a suite of remote sensing instruments to estimate the effect of conversion of ice to liquid associated with warming on reflected solar radiation in the latitude band from 40° to 60°S. The calculated increase in upwelling shortwave radiation (SW↑) is found to be important and of comparable magnitude to the increase in SW↑ associated with warming-induced increases of optical depth in climate models. The region where the authors' estimate increases SW↑ extends farther equatorward than the region where optical depth increases with warming in models. This difference is likely caused by other mechanisms at work in the models but is also sensitive to the amount of ice present in climate models and its susceptibility to warming. © 2014 American Meteorological Society. |
| 资助项目: | NASA, National Aeronautics and Space Administration
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/51287
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States
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| Recommended Citation: | |
Mccoy D.T.,Hartmann D.L.,Grosvenor D.P.. Observed Southern Ocean cloud properties and shortwave reflection. Part II: Phase changes and low cloud feedback[J]. Journal of Climate,2014-01-01,27(23)
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