Linking Seasonal-to-Interannual Variability of Intermediate Currents in the Southwest Tropical Pacific to Wind Forcing and ENSO

doi:10.1029/2021GL092440

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Linking Seasonal-to-Interannual Variability of Intermediate Currents in the Southwest Tropical Pacific to Wind Forcing and ENSO
	Wang, Jianing 1,4,5; Ma, Qiang 1,5; Wang, Fan 1,4,5; Zhang, Dongxiao 2,3
刊名	GEOPHYSICAL RESEARCH LETTERS
	2021-03-16
卷号	48 期号:5 页码:11
关键词	ENSO interannual variability intermediate currents Rossby and Kelvin waves seasonal variability Southwest Pacific Ocean
ISSN号	0094-8276
DOI	10.1029/2021GL092440
通讯作者	Wang, Fan(fwang@qdio.ac.cn)
英文摘要	Seasonal-to-interannual variability of intermediate circulations in the southwest tropical Pacific is key to interhemisphere and interbasin water mass exchange and is shown to be interconnected with wind forcing and the El Nino-Southern Oscillation (ENSO) based on numerical model results validated by mooring observations. The Lower Equatorial Intermediate Current and the intermediate part of the New Guinea Coastal Undercurrent show clear seasonal variability and a significant interannual response to ENSO at a 7-12-month lag, both of which are induced by Rossby waves. Baroclinic modes 1 and 2 of the direct wind-forced Rossby waves contribute mainly to the seasonal variability. In contrast, the Rossby waves from baroclinic modes 2 and 4 and the reflection of Kelvin waves are the main contributors to the variability on ENSO time scales. The presence of the southwest tropical Pacific coastline enhances the intermediate seasonal variance and the interannual relationship between intermediate currents and ENSO.
资助项目	National Natural Science Foundation of China[91958204] ; National Natural Science Foundation of China[41776022] ; National Natural Science Foundation of China[41730534] ; National Natural Science Foundation of China[41421005] ; National Natural Science Foundation of China[42006003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS034] ; China Ocean Mineral Resources Research and Development Association Program[DY135-E2-3-02] ; Joint Institute for the Study of the Atmosphere and Ocean (JISAO) under NOAA[NA15OAR4320063]
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000627892100026
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/170326]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Wang, Fan
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA 3.Univ Washington, Cooperat Inst Climate Ocean & Ecosyst Studies, Seattle, WA 98195 USA 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jianing,Ma, Qiang,Wang, Fan,et al. Linking Seasonal-to-Interannual Variability of Intermediate Currents in the Southwest Tropical Pacific to Wind Forcing and ENSO[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48(5):11.
APA	Wang, Jianing,Ma, Qiang,Wang, Fan,&Zhang, Dongxiao.(2021).Linking Seasonal-to-Interannual Variability of Intermediate Currents in the Southwest Tropical Pacific to Wind Forcing and ENSO.GEOPHYSICAL RESEARCH LETTERS,48(5),11.
MLA	Wang, Jianing,et al."Linking Seasonal-to-Interannual Variability of Intermediate Currents in the Southwest Tropical Pacific to Wind Forcing and ENSO".GEOPHYSICAL RESEARCH LETTERS 48.5(2021):11.