气候变化领域集成服务门户(CCPortal): On the role of the Atlantic Ocean in forcing tropic cyclones in the Arabian Sea

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DOI	10.1016/j.atmosres.2019.01.016
	On the role of the Atlantic Ocean in forcing tropic cyclones in the Arabian Sea
	Zhang W.; Villarini G.
发表日期	2019
ISSN	0169-8095
起始页码	120
结束页码	124
卷号	220
英文摘要	This study examines the impacts of tropical South Atlantic sea surface temperature (SST) anomalies on the frequency of the Arabian Sea tropical cyclones (TCs) during the pre-monsoon season (May–June) using observations and climate model experiments. There is a statistically significant association between the Atlantic SST anomalies and the frequency of Arabian Sea TCs during May–June of 1979–2016 based on the observations. These results can be explained from a physical perspective through the classic Matsuno-Gill responses to the Atlantic SST forcing, leading to changes in vertical wind shear in the Arabian Sea. The reduced vertical wind shear related to the Atlantic SST warming is associated with anomalous upper-level westerlies and lower-level easterlies. The physical mechanisms identified in the observations are strongly supported by a suite of experiments with an atmospheric general circulation model. Overall, the experiments reproduce the observed Matsuno-Gill responses, which are responsible for changes in vertical wind shear, lending confidence to the strong impacts of the Atlantic SST anomalies on the frequency of pre-monsoon Arabian Sea TCs. © 2019 Elsevier B.V.
英文关键词	Arabian Sea; Atlantic Ocean; Teleconnections; Tropical cyclones
语种	英语
scopus关键词	Atmospheric thermodynamics; Climate models; Hurricanes; Storms; Surface waters; Tropics; Arabian sea; Atlantic Ocean; Atmospheric general circulation models; Model experiments; Physical mechanism; Teleconnections; Tropical cyclone; Vertical wind shear; Oceanography; atmospheric forcing; atmospheric general circulation model; sea surface temperature; teleconnection; temperature anomaly; tropical cyclone; wind shear; Arabian Sea; Atlantic Ocean; Indian Ocean
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162333
作者单位	IIHR-Hydroscience & Engineering, The University of Iowa, Iowa City, IA, United States
推荐引用方式 GB/T 7714	Zhang W.,Villarini G.. On the role of the Atlantic Ocean in forcing tropic cyclones in the Arabian Sea[J],2019,220.
APA	Zhang W.,&Villarini G..(2019).On the role of the Atlantic Ocean in forcing tropic cyclones in the Arabian Sea.Atmospheric Research,220.
MLA	Zhang W.,et al."On the role of the Atlantic Ocean in forcing tropic cyclones in the Arabian Sea".Atmospheric Research 220(2019).