Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO

doi:10.1029/2022GL098409

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

	Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO
	Ma, Qiang 1,3; Wang, Jianing 1,2,3; Wang, Fan 1,2,3; Lyu, Yilong 1,3; Zhang, Zhixiang 1,3
刊名	GEOPHYSICAL RESEARCH LETTERS
	2022-03-28
卷号	49 期号:6 页码:9
关键词	ENSO PDO interdecadal variability intermediate currents western Pacific Ocean
ISSN号	0094-8276
DOI	10.1029/2022GL098409
通讯作者	Wang, Jianing(wjn@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn)
英文摘要	As the most prominent decadal variability in the Pacific Ocean, the Pacific Decadal Oscillation (PDO) can influence the El Nino-Southern Oscillation-related atmospheric and upper oceanic motions. Based on results from ocean reanalysis products and linear continuously stratified model experiments, we reveal that the PDO can further extend its interdecadal modulation effect to the equatorial intermediate currents below the thermocline. For the maximum El Nino-related intermediate eastward transport anomaly in the western Pacific, its magnitude during the warm PDO is nearly twice as large as that during the cold PDO, and its occurrence time in the warm PDO leads that in the cold PDO by about 2 months. Such modulation is achieved through westward and downward propagation of the reflected Kelvin-to-Rossby waves, triggered by enhanced and eastward-displaced anomalous westerly wind. The decisive wind forcing region for the modulation is located over the equatorial central Pacific of 5 degrees S-5 degrees N and 180 degrees-140 degrees W.
资助项目	National Natural Science Foundation of China[42006003] ; National Natural Science Foundation of China[42106009] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS034]
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000775607800001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/178678]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Wang, Jianing; Wang, Fan
作者单位	1.Pilot Natl Lab Marine Sci & Technol Qingdao, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Ma, Qiang,Wang, Jianing,Wang, Fan,et al. Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(6):9.
APA	Ma, Qiang,Wang, Jianing,Wang, Fan,Lyu, Yilong,&Zhang, Zhixiang.(2022).Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO.GEOPHYSICAL RESEARCH LETTERS,49(6),9.
MLA	Ma, Qiang,et al."Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO".GEOPHYSICAL RESEARCH LETTERS 49.6(2022):9.