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Interdecadal Modulation of ENSO-Related Anomalous Equatorial Intermediate Currents in the Western Pacific by the PDO
Ma, Qiang1,2; Wang, Jianing1,2,3; Wang, Fan1,2,3; Lyu, Yilong1,2; Zhang, Zhixiang1,2
2022-03-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
卷号49期号:6页码:9
通讯作者Wang, Jianing(wjn@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn)
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.
关键词ENSO PDO interdecadal variability intermediate currents western Pacific Ocean
DOI10.1029/2022GL098409
收录类别SCI
语种英语
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
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000775607800001
出版者AMER GEOPHYSICAL UNION
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被引频次:3[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/337002/178679
专题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.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing, 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
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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.
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