气候变化领域集成服务门户(CCPortal): Interdecadal change in the relationship between the tropical easterly jet and tropical sea surface temperature anomalies in boreal summer

CCPortal

DOI	10.1007/s00382-019-04801-5
	Interdecadal change in the relationship between the tropical easterly jet and tropical sea surface temperature anomalies in boreal summer
	Huang S.; Wen Z.; Chen Z.; Li X.; Chen R.; Guo Y.
发表日期	2019
ISSN	0930-7575
起始页码	2119
结束页码	2131
卷号	53 期号:2020-03-04
英文摘要	The interdecadal change in the relationship between the tropical easterly jet (TEJ) and the tropical sea surface temperature anomalies (SSTAs) in boreal summer is studied. It is found that TEJ’s relationship with the SSTAs reverses over the tropical eastern Atlantic (EA), while enhances obviously over the tropical eastern Pacific (EP) after 1981. During 1960–1980, an Atlantic Niño-like SSTA over the EA can weaken the TEJ through the upper westerly anomaly of the anomalous Walker circulation between EA and tropical Indian Ocean. In the meantime, a Pacific El Niño-like SSTA over the EP can also diminish the TEJ intensity via a Kelvin wave response east to the diabatic heating induced by enhanced precipitation in situ. Observations and model experiments show that the EA and EP SSTAs can contribute to the TEJ variability in a joint or independent manner. During 1981–2001, as the associated Pacific El Niño-like SSTA is enlarged in the magnitude and the spatial extension, it exerts a stronger impact on the TEJ variability. Different from the pre-1980 period, the SSTA over the EA featured by an Atlantic Niña-like instead of Niño-like pattern could weaken the TEJ, which doesn’t work without the co-existence of the EP SSTA. Such Atlantic Niña-like SSTA develops in the previous spring and strengthens the warm SSTA over the EP in summer, and then affects the TEJ indirectly. The interdecadal change of the TEJ-SST relationship is likely related to the changes of the variability and spatial configuration of the tropical SSTAs. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Interdecadal change; Kelvin wave response; Tropical easterly jet; Tropical SST anomalies; Walker circulation
语种	英语
scopus关键词	decadal variation; easterly wave; jet stream; Kelvin wave; sea surface temperature; summer; temperature anomaly; tropical environment; Walker circulation
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146109
作者单位	Center for Monsoon and Environment Research and School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China; Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, 200433, China; Jiangsu Collaborative Innovation Center for Climate Change, Nanjing, China; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
推荐引用方式 GB/T 7714	Huang S.,Wen Z.,Chen Z.,et al. Interdecadal change in the relationship between the tropical easterly jet and tropical sea surface temperature anomalies in boreal summer[J],2019,53(2020-03-04).
APA	Huang S.,Wen Z.,Chen Z.,Li X.,Chen R.,&Guo Y..(2019).Interdecadal change in the relationship between the tropical easterly jet and tropical sea surface temperature anomalies in boreal summer.Climate Dynamics,53(2020-03-04).
MLA	Huang S.,et al."Interdecadal change in the relationship between the tropical easterly jet and tropical sea surface temperature anomalies in boreal summer".Climate Dynamics 53.2020-03-04(2019).