气候变化领域集成服务门户(CCPortal): Impact of the South China sea summer monsoon on the indian ocean dipole in CMIP5 models

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DOI	10.1175/JCLI-D-20-0582.1
	Impact of the South China sea summer monsoon on the indian ocean dipole in CMIP5 models
	Zhang Y.; Li J.; Zheng F.; Yu M.; Feng J.; Sun C.
发表日期	2021
ISSN	08948755
起始页码	1963
结束页码	1981
卷号	34 期号:5
英文摘要	The impact of the South China Sea summer monsoon (SCSSM) on the Indian Ocean dipole (IOD) has been systematically investigated in observations. This study focuses on the ability of climate models participating in phase 5 of the Coupled Model Intercomparison Project (CMIP5) to reproduce the observed relationship between the SCSSM and IOD and the relevant physical mechanisms. All 23 models reproduce significant correlations between the SCSSM and IOD during boreal summer [June-August (JJA)], whereas the influence of the SCSSM on the IOD varies considerably across the CMIP5 models. To explore the causes, all models are divided into two groups. Models that successfully simulated both the correlations between the SCSSM and JJA IOD and of the SCSSM and JJA IOD with precipitation over the western North Pacific and Maritime Continent are classified as Type I, and these produce stronger low-level wind anomalies over the tropical southeastern Indian Ocean. The stronger low-level wind anomalies enhance local sea surface temperature (SST) anomalies via positive wind-evaporation-SST (WES) and wind-thermocline-SST (Bjerknes) feedbacks. This corresponds to a strengthening of IOD events due to the increased zonal gradient of SST anomalies over the tropical Indian Ocean. In contrast, Type II models perform poorly in representing the relationship between the SCSSM and JJA IOD or relevant physical processes, corresponding to weaker WES and Bjerknes feedbacks, and produce weaker IOD events. These results demonstrate that the better the model simulation of the critical physical processes, the larger contribution of the SCSSM to the IOD. © 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmosphere-ocean interaction; Indian Ocean; Interannual variability; Model evaluation/performance; Monsoons
语种	英语
scopus关键词	Atmospheric thermodynamics; Climate models; Surface waters; Tropics; Coupled Model Intercomparison Project; Indian Ocean dipole; Indian ocean dipoles; Maritime Continent; Sea surface temperature anomalies; South China Sea summer monsoon; Tropical Indian ocean; Western North Pacific; Oceanography; air-sea interaction; annual variation; atmospheric modeling; climate modeling; CMIP; Indian Ocean Dipole; monsoon; summer; Indian Ocean; Pacific Ocean; South China Sea
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178695
作者单位	Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Physical Oceanography, Institute for Advanced Ocean Studies, Ocean University of China, Qingdao, China; Laboratory for Ocean Dynamics and Climate, Pilot Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
推荐引用方式 GB/T 7714	Zhang Y.,Li J.,Zheng F.,et al. Impact of the South China sea summer monsoon on the indian ocean dipole in CMIP5 models[J],2021,34(5).
APA	Zhang Y.,Li J.,Zheng F.,Yu M.,Feng J.,&Sun C..(2021).Impact of the South China sea summer monsoon on the indian ocean dipole in CMIP5 models.Journal of Climate,34(5).
MLA	Zhang Y.,et al."Impact of the South China sea summer monsoon on the indian ocean dipole in CMIP5 models".Journal of Climate 34.5(2021).