IOCAS-IR  > 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, Lina1,2,3; Li, Yuanlong1,2,3; Liu, Chuanyu1,2,3; Wang, Fan1,2,3; Wang, Jianing1,2,3
2019-12-30
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Pages10
Corresponding AuthorWang, Fan(fwang@qdio.ac.cn)
AbstractProminent 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.
Keywordsubsurface mooring observation intraseasonal variability of zonal currents the western tropical Pacific Madden-Julian oscillation the North Subsurface Countercurrent the North Equatorial Subsurface Current
DOI10.1029/2019GL085606
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41730534] ; National Natural Science Foundation of China[41706018] ; National Natural Science Foundation of China[91958204] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; Scientific and Technological Innovation Project[2016ASKJ12] ; Key Research Program of Frontier Sciences[QYZDB-SSW-DQC030] ; Aoshan Talents Program[2017ASTCP-ES03] ; NSFC Innovative Group Grant[41421005] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; National Key Research and Development Program[2017YFA0603201]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000504818600001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164119
Collection海洋环流与波动重点实验室
Corresponding AuthorWang, Fan
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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