IOCAS-IR  > 海洋环流与波动重点实验室
Intraseasonal modulation of Wyrtki jet in the eastern Indian Ocean by equatorial waves during spring 2013
Duan, Yongliang1,2; Liu, Hongwei3,4,5; Liu, Lin1,2; Yu, Weidong6,7,8
2020-07-01
Source PublicationACTA OCEANOLOGICA SINICA
ISSN0253-505X
Volume39Issue:7Pages:11-18
Corresponding AuthorLiu, Lin(liul@fio.org.cn)
AbstractA strong spring Wyrtki jet (WJ) presents in May 2013 in the eastern equatorial Indian Ocean. The entire buildup and retreat processes of the spring WJ were well captured by two adjacent Acoustic Doppler Current Profilers mounted on the mooring systems. The observed zonal jet behaved as one intraseasonal event with the significant features of abrupt emergence as well as slow disappearance. Further research illustrate that the pronounced surface westerly wind burst during late-April to mid-May, associated with the active phase of a robust eastward-propagating Madden-Julian oscillation in the tropical Indian Ocean, was the dominant reason for the rapid acceleration of surface WJ. In contrasting, the governing mechanism for the jet termination was equatorial wave dynamics rather than wind forcing. The decomposition analysis of equatorial waves and the corresponding changes in the ocean thermocline demonstrated that strong WJ was produced rapidly by the wind-generated oceanic downwelling equatorial Kelvin wave and was terminated subsequently by the westward-propagating equatorial Rossby wave reflecting from eastern boundaries of the Indian Ocean.
KeywordWyrtki jet equatorial wave dynamics Madden-Julian oscillation tropical Indian Ocean
DOI10.1007/s13131-020-1576-2
Indexed BySCI
Language英语
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000564961000002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/168484
Collection海洋环流与波动重点实验室
Corresponding AuthorLiu, Lin
Affiliation1.Minist Nat Resources, Inst Oceanog 1, Ctr Ocean & Climate Res, Qingdao 266061, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Reg Oceanog & Numer Modeling, Qingdao 266061, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean & Climate Dynam, Qingdao 266071, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
6.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai Campus, Zhuhai 519082, Peoples R China
7.Sun Yat Sen Univ, Minist Educ, Key Lab Trop Atmosphere Ocean Syst, Zhuhai 519082, Peoples R China
8.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China
Recommended Citation
GB/T 7714
Duan, Yongliang,Liu, Hongwei,Liu, Lin,et al. Intraseasonal modulation of Wyrtki jet in the eastern Indian Ocean by equatorial waves during spring 2013[J]. ACTA OCEANOLOGICA SINICA,2020,39(7):11-18.
APA Duan, Yongliang,Liu, Hongwei,Liu, Lin,&Yu, Weidong.(2020).Intraseasonal modulation of Wyrtki jet in the eastern Indian Ocean by equatorial waves during spring 2013.ACTA OCEANOLOGICA SINICA,39(7),11-18.
MLA Duan, Yongliang,et al."Intraseasonal modulation of Wyrtki jet in the eastern Indian Ocean by equatorial waves during spring 2013".ACTA OCEANOLOGICA SINICA 39.7(2020):11-18.
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