文章基本信息

标题：The CGILS experimental design to investigate low cloud feedbacks in general circulation models by using single‐column and large‐eddy simulation models
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作者：Minghua Zhang ; Christopher S. Bretherton ; Peter N. Blossey 等
期刊名称：Journal of Advances in Modeling Earth Systems
电子版ISSN：1942-2466
出版年度：2012
卷号：4
期号：4
页码：1-15
DOI：10.1029/2012MS000182
出版社：John Wiley & Sons, Ltd.
摘要：A surrogate climate change is designed to investigate low cloud feedbacks in the northeastern Pacific by using Single Column Models (SCMs), Cloud Resolving Models (CRMs), and Large Eddy Simulation models (LES), as part of the CGILS study (CFMIP‐GASS Intercomparison of LES and SCM models). The constructed large‐scale forcing fields, including subsidence and advective tendencies, and their perturbations in the warmer climate are shown to compare well with conditions in General Circulation Models (GCMs), but they are free from the impact of any GCM parameterizations. The forcing fields in the control climate are also shown to resemble the mean conditions in the ECMWF‐Interim Reanalysis. Applications of the forcing fields in SCMs are presented. It is shown that the idealized design can offer considerable insight into the mechanisms of cloud feedbacks in the models. Caveats and advantages of the design are also discussed.
关键词：cloud feedbacks