Atmospheric response to the South Pacific Subtropical Dipole

doi:10.1007/s00382-020-05559-x

IOCAS-IR > 海洋环流与波动重点实验室

	Atmospheric response to the South Pacific Subtropical Dipole
	Zheng, Jian1,2,3 ; Wang, Faming 1,2,3,4
	2021-01-03
发表期刊	CLIMATE DYNAMICS
ISSN	0930-7575
页码	13
通讯作者	Zheng, Jian([email protected])
摘要	Recent studies have suggested a dipolar mode of sea surface temperature variability in the subtropical South Pacific that matures in the austral summer, which is known as the South Pacific Subtropical Dipole (SPSD). In our study, the summer atmospheric response to the SPSD is investigated using observational data and numerical model experiments. Our results show a baroclinic response equatorward of 30 degrees S and a barotropic response poleward of 30 degrees S. The SPSD causes precipitation anomalies over the subtropical South Pacific, and the associated diabatic heating induces a baroclinic response. The mid- and high-latitude barotropic response is similar to the Southern Annual Mode (SAM) and is accompanied by an anomalous shift of storm tracks. The associated anomalous eddy activity is responsible for the SAM-like response. The results of numerical model experiments are consistent with our observations, except for the weak response in the high latitude. In the subtropical South Pacific, the spatial pattern of atmospheric response to the SPSD resembles the atmospheric anomalies that force the SPSD. The subtropical atmospheric response and the SPSD interact with each other and comprise a coupled system.
关键词	Atmospheric response South Pacific Subtropical Dipole Southern Annual Mode Coupled system
DOI	10.1007/s00382-020-05559-x
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[41606018]; Natural Science Foundation of China[41776035]; Funds for Creative Research Groups of China[41421005]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000604528700002
出版者	SPRINGER
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/169912
专题	海洋环流与波动重点实验室
通讯作者	Zheng, Jian
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao 266000, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	海洋环流与波动重点实验室
通讯作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Zheng, Jian,Wang, Faming. Atmospheric response to the South Pacific Subtropical Dipole[J]. CLIMATE DYNAMICS,2021:13.
APA	Zheng, Jian,&Wang, Faming.(2021).Atmospheric response to the South Pacific Subtropical Dipole.CLIMATE DYNAMICS,13.
MLA	Zheng, Jian,et al."Atmospheric response to the South Pacific Subtropical Dipole".CLIMATE DYNAMICS (2021):13.

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