globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016MS000846
Scopus记录号: 2-s2.0-85013020770
论文题名:
On the role of the stratiform cloud scheme in the inter-model spread of cloud feedback
作者: Geoffroy O; , Sherwood S; C; , Fuchs D
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:1
起始页码: 423
结束页码: 437
语种: 英语
英文关键词: Boundary layers ; Climate models ; Clouds ; Probability density function ; Climate sensitivity ; Inter-model spread ; Low cloud cover ; Stratiform clouds ; Stratocumulus ; Feedback ; boundary layer ; climate feedback ; climate modeling ; cloud cover ; cloud radiative forcing ; CMIP ; coupling ; feedback mechanism ; probability density function ; relative humidity ; sensitivity analysis ; stratiform cloud ; stratocumulus
英文摘要: This study explores the role of the stratiform cloud scheme in the inter-model spread of cloud feedback. Six diagnostic cloud schemes used in various CMIP (Coupled Model Intercomparison Experiment] climate models are implemented (at low and midlevels) into two testbed climate models, and the impacts on cloud feedback are investigated. Results suggest that the choice of stratiform cloud scheme may contribute up to roughly half of the intermodel spread of cloud radiative responses in stratocumulus (Sc) regions, and may determine or favor a given sign of the feedback there. Cloud schemes assuming a probability density function for total water content consistently predict a positive feedback in Sc regions in our experiments. A large negative feedback in Sc regions is obtained only with schemes that consider variables other than relative humidity (e.g., stability). The stratiform cloud scheme also significantly affects cloud feedback at the scale of the tropics and at global scale. Results are slightly less consistent for tropical means, likely indicating coupling with other boundary layer processes such as convective mixing. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75814
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Climate Change Research Centre, University of New South Wales, Sydney, NSW, Australia

Recommended Citation:
Geoffroy O,, Sherwood S,C,et al. On the role of the stratiform cloud scheme in the inter-model spread of cloud feedback[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(1)
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