GSTDTAP  > 气候变化
DOI10.1007/s00382-016-3107-6
Simplified ISCCP cloud regimes for evaluating cloudiness in CMIP5 models
Jin, Daeho1,2; Oreopoulos, Lazaros2; Lee, Dongmin2,3
2017
发表期刊CLIMATE DYNAMICS
ISSN0930-7575
EISSN1432-0894
出版年2017
卷号48
文章类型Article
语种英语
国家USA
英文摘要

We take advantage of ISCCP simulator data available for many models that participated in CMIP5, in order to introduce a framework for comparing model cloud output with corresponding ISCCP observations based on the cloud regime (CR) concept. Simplified global CRs are employed derived from the co-variations of three variables, namely cloud optical thickness, cloud top pressure and cloud fraction (tau, p (c) , CF). Following evaluation criteria established in a companion paper of ours (Jin et al. 2016), we assess model cloud simulation performance based on how well the simplified CRs are simulated in terms of similarity of centroids, global values and map correlations of relative-frequency-of-occurrence, and long-term total cloud amounts. Mirroring prior results, modeled clouds tend to be too optically thick and not as extensive as in observations. CRs with high-altitude clouds from storm activity are not as well simulated here compared to the previous study, but other regimes containing near-overcast low clouds show improvement. Models that have performed well in the companion paper against CRs defined by joint tau-p (c) histograms distinguish themselves again here, but improvements for previously underperforming models are also seen. Averaging across models does not yield a drastically better picture, except for cloud geographical locations. Cloud evaluation with simplified regimes seems thus more forgiving than that using histogram-based CRs while still strict enough to reveal model weaknesses.


英文关键词CMIP5 evaluation CFMIP COSP ISCCP simulator Cloud assessment Cloud climatology Cloud regime
领域气候变化
收录类别SCI-E
WOS记录号WOS:000392307300007
WOS关键词INSTRUMENT SIMULATORS ; ECMWF
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/35949
专题气候变化
作者单位1.Univ Space Res Assoc, Columbia, MD 21046 USA;
2.NASA, Goddard Space Flight Ctr, Code 613, Greenbelt, MD 20771 USA;
3.Morgan State Univ, Baltimore, MD 21239 USA
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GB/T 7714
Jin, Daeho,Oreopoulos, Lazaros,Lee, Dongmin. Simplified ISCCP cloud regimes for evaluating cloudiness in CMIP5 models[J]. CLIMATE DYNAMICS,2017,48.
APA Jin, Daeho,Oreopoulos, Lazaros,&Lee, Dongmin.(2017).Simplified ISCCP cloud regimes for evaluating cloudiness in CMIP5 models.CLIMATE DYNAMICS,48.
MLA Jin, Daeho,et al."Simplified ISCCP cloud regimes for evaluating cloudiness in CMIP5 models".CLIMATE DYNAMICS 48(2017).
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