气候变化领域集成服务门户(CCPortal): On the westward shift of tropical Pacific climate variability since 2000

CCPortal

DOI	10.1007/s00382-019-04666-8
	On the westward shift of tropical Pacific climate variability since 2000
	Li X.; Hu Z.-Z.; Becker E.
发表日期	2019
ISSN	0930-7575
起始页码	2905
结束页码	2918
卷号	53 期号:2020-05-06
英文摘要	A profound westward shift in atmosphere–ocean variability in the tropical Pacific is observed when 2000–2017 is compared to 1979–1999. This westward displacement is associated with changes in oceanic Kelvin wave activity along the equator, especially a remarkable reduction in the eastern Pacific (175°–145°W). This coincides with a weakening of low-level westerly winds in this region, and a westward shift of low-level easterly winds in the central and eastern tropical Pacific, as well as decreased variability of vertical entrainment, vertical diffusion in the ocean mixed-layer in the eastern Pacific. The observed enhancement of the zonal contrast of the mean state across the tropical Pacific seems to be associated with the westward shift of climate variability along the equator. This systematically westward shift of the atmosphere–ocean variability in the tropical Pacific alters the impact of the tropical Pacific on extra-tropical climate. © 2019, This is a U.S. government work and its text is not subject to copyright protection in the United States; however, its text may be subject to foreign copyright protection.
英文关键词	Oceanic Kelvin wave activity; Westward shift of tropical Pacific variability; Zonal gradient of SST
语种	英语
scopus关键词	air-sea interaction; climate variation; Kelvin wave; sea surface temperature; spatial variation; westerly; zonal wind; Pacific Ocean; Pacific Ocean (Tropical)
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/146010
作者单位	School of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang 310027, China; Climate Prediction Center, NCEP/NWS, NOAA 5830 University Research Court, College Park, MD 20740, United States
推荐引用方式 GB/T 7714	Li X.,Hu Z.-Z.,Becker E.. On the westward shift of tropical Pacific climate variability since 2000[J],2019,53(2020-05-06).
APA	Li X.,Hu Z.-Z.,&Becker E..(2019).On the westward shift of tropical Pacific climate variability since 2000.Climate Dynamics,53(2020-05-06).
MLA	Li X.,et al."On the westward shift of tropical Pacific climate variability since 2000".Climate Dynamics 53.2020-05-06(2019).