Observed Deep-Reaching Signatures of the Madden-Julian Oscillation in the Ocean Circulation of the Western Tropical Pacific

doi:10.1029/2019GL085606

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

	Observed Deep-Reaching Signatures of the Madden-Julian Oscillation in the Ocean Circulation of the Western Tropical Pacific
	Song, Lina 1,2,3; Li, Yuanlong 1,2,3; Liu, Chuanyu 1,2,3; Wang, Fan 1,2,3; Wang, Jianing 1,2,3
刊名	GEOPHYSICAL RESEARCH LETTERS
	2019-12-30
页码	10
关键词	subsurface mooring observation intraseasonal variability of zonal currents the western tropical Pacific Madden-Julian oscillation the North Subsurface Countercurrent the North Equatorial Subsurface Current
ISSN号	0094-8276
DOI	10.1029/2019GL085606
英文摘要	Prominent intraseasonal variability (ISV) of ocean currents was detected by two subsurface moorings deployed at 140 degrees E, 2 degrees N, and 4.7 degrees N during 2014-2018 and shown to be largely induced by westerly wind bursts (WWBs) associated with passages of Madden-Julian oscillations (MJOs). The North Equatorial Countercurrent between 60 and 200 m is enhanced (attenuated) by 6-8 cm/s prior (subsequent) to the WWB. Current anomalies below 300 m are as large as 2-3 cm/s, close in magnitude to the mean velocities of the North Equatorial Subsurface Current and North Subsurface Countercurrent. The ISV in the upper 600 m shows a vertical dipole structure at 2 degrees N and vertically coherent anomalies at 4.7 degrees N. Further analysis combining satellite data reveals local recirculation structures generated by wind-forced Rossby waves. Ocean model experiments confirm the importance of the MJO's wind forcing in causing these subsurface ocean ISVs.
资助项目	National Natural Science Foundation of China[41730534] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; NSFC Innovative Group Grant[41421005] ; National Natural Science Foundation of China[41706018] ; Scientific and Technological Innovation Project[2016ASKJ12] ; National Natural Science Foundation of China[91958204] ; Key Research Program of Frontier Sciences[QYZDB-SSW-DQC030] ; Aoshan Talents Program[2017ASTCP-ES03] ; National Key Research and Development Program[2017YFA0603201]
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000504818600001
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/164118]
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, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Shandong, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Song, Lina,Li, Yuanlong,Liu, Chuanyu,et al. Observed Deep-Reaching Signatures of the Madden-Julian Oscillation in the Ocean Circulation of the Western Tropical Pacific[J]. GEOPHYSICAL RESEARCH LETTERS,2019:10.
APA	Song, Lina,Li, Yuanlong,Liu, Chuanyu,Wang, Fan,&Wang, Jianing.(2019).Observed Deep-Reaching Signatures of the Madden-Julian Oscillation in the Ocean Circulation of the Western Tropical Pacific.GEOPHYSICAL RESEARCH LETTERS,10.
MLA	Song, Lina,et al."Observed Deep-Reaching Signatures of the Madden-Julian Oscillation in the Ocean Circulation of the Western Tropical Pacific".GEOPHYSICAL RESEARCH LETTERS (2019):10.