Assessment of the Summer South Asian High in Eighteen CMIP5 Models
Bian,H(Bian,He)[1,2]; Hu,WT(Hu,Wenting)[1]
2015
发表期刊ATMOSPHERIC AND OCEANIC SCIENCE LETTERS
卷号8期号:1页码:33-38
文章类型期刊论文
摘要

The South Asian High (SAH) is one of the most important components of the Asian summer monsoon system. To understand the ability of state-of-the-art general circulation models (GCMs) to capture the major characteristics of the SAH, the authors evaluate 18 atmospheric models that participated in the Coupled Model Intercomparison Project Phase 5/Atmospheric Model Intercomparison Project (CMIP5/AMIP). Results show that the multi-model ensemble (MME) mean is able to capture the climatological pattern of the SAH, although its intensity is slightly underestimated. For the interannual variability of the SAH, the MME exhibits good correlation with the reanalysis for the area and intensity index, but poor skill in capturing the east-west oscillation of the SAH. For the interdecadal trend, the MME shows pronounced increasing trends from 1985 to 2008 for the area and intensity indexes, which is consistent with the reanalysis, but fails to capture the westward shift of the SAH center. The individual models show different capacities for capturing climatological patterns, interannual variability, and interdecadal trends of the SAH. Several models fail to capture the climatological pattern, while one model overestimates the intensity of the SAH. Most of the models show good correlations for interannual variability, but nearly half exhibit high root-mean-square difference (RMSD) values. Six models successfully capture the westward shift of the SAH center in the interdecadal trends, while other models fail. The possible causes of the systematic biases involved in several models are also discussed.

关键词South Asian High Cmip5 Asian Summermonsoon Amip
DOI10.3878/AOSL20140069
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9433
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of AtmosphericPhysics, Chinese Academy of Sciences, Beijing 100029, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an710075, China
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Bian,H,Hu,WT. Assessment of the Summer South Asian High in Eighteen CMIP5 Models[J]. ATMOSPHERIC AND OCEANIC SCIENCE LETTERS,2015,8(1):33-38.
APA Bian,H,&Hu,WT.(2015).Assessment of the Summer South Asian High in Eighteen CMIP5 Models.ATMOSPHERIC AND OCEANIC SCIENCE LETTERS,8(1),33-38.
MLA Bian,H,et al."Assessment of the Summer South Asian High in Eighteen CMIP5 Models".ATMOSPHERIC AND OCEANIC SCIENCE LETTERS 8.1(2015):33-38.
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