IDSSE OpenIR  > 深海科学研究部  > 海洋环流观测与数值模拟研究室
Vertical Propagation of Middepth Zonal Currents Associated With Surface Wind Forcing in the Equatorial Indian Ocean
Huang, Ke1; McPhaden, Michael J.2; Wang, Dongxiao1,3; Wang, Weiqiang1,4; Xie, Qiang1,4,5; Chen, Ju1; Shu, Yeqiang1; Wang, Qiang1; Li, Jian1; Yao, Jinglong1
2018-10-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume123Issue:10Pages:7290-7307
AbstractThe vertical propagation of middepth (200-1,500m) zonal velocity in the equatorial Indian Ocean (EIO) and its relationship with surface wind forcing are investigated. We focus on semiannual time scales, using in situ mooring observations and an oceanic reanalysis product that can reasonably well reproduce the structure and magnitude of the observed middepth zonal velocity in the EIO. The pronounced semiannual cycle in observed middepth zonal currents indicates a clear upward phase propagation with particularly robust signatures at depths of 500-1,000m between 3 degrees S to 3 degrees N, 70 to 85 degrees E. The main characteristics of the middepth currents are consistent with vertically propagating first-meridional-mode Rossby wave at semiannual period. Theory suggests that equatorial Kelvin waves, forced by zonal wind variations in the western half of the basin, transfer energy downward and eastward, reflecting into Rossby waves at the eastern boundary. These reflected Rossby waves transfer energy downward and westward, contributing greatly to observed phase propagation at middepths in the EIO.
Keywordmiddepth zonal current vertical propagation wind-driven equatorial waves energy ray equatorial Indian Ocean
DOI10.1029/2018JC013977
Funding OrganizationMinistry of Ocean Development (MOD) ; National Institute of Oceanography (NIO), Government of India ; Strategic Priority Research Program of Chinese Academy of Sciences ; Innovative research group of National Natural Science Foundation of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Open Fund of Key Laboratory of Ocean Circulation and Waves ; Guangzhou Science and Technology Foundation ; Open Fund of the State Key Laboratory of Tropical Oceanography ; Fundamental Research Funds for the Central Universities ; NOAA
Language英语
Funding ProjectMinistry of Ocean Development (MOD) ; National Institute of Oceanography (NIO), Government of India ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20060500] ; Innovative research group of National Natural Science Foundation of China[41521005] ; Major State Research Development Program of China[2016YFC1402603] ; Major State Research Development Program of China[2017YFC1405100] ; Major State Research Development Program of China[2016YFC1401401] ; National Natural Science Foundation of China[41676013] ; National Natural Science Foundation of China[41776003] ; National Natural Science Foundation of China[41706027] ; Natural Science Foundation of Guangdong Province[2016A030310015] ; Open Fund of Key Laboratory of Ocean Circulation and Waves[KLOCW1604] ; Guangzhou Science and Technology Foundation[201804010133] ; Open Fund of the State Key Laboratory of Tropical Oceanography[LTOZZ1702] ; Fundamental Research Funds for the Central Universities[20720160108] ; NOAA
WOS KeywordINTERANNUAL VARIABILITY ; WESTERN PACIFIC ; DEEP CURRENTS ; ROSSBY-WAVE ; ATLANTIC ; CIRCULATION ; DRIVEN ; JETS ; UNDERCURRENT ; REANALYSIS
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000451274900018
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6391
Collection深海科学研究部_海洋环流观测与数值模拟研究室
深海科学研究部
Corresponding AuthorWang, Dongxiao; Wang, Weiqiang
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA
3.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Guangdong, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China
5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
Recommended Citation
GB/T 7714
Huang, Ke,McPhaden, Michael J.,Wang, Dongxiao,et al. Vertical Propagation of Middepth Zonal Currents Associated With Surface Wind Forcing in the Equatorial Indian Ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(10):7290-7307.
APA Huang, Ke.,McPhaden, Michael J..,Wang, Dongxiao.,Wang, Weiqiang.,Xie, Qiang.,...&Yao, Jinglong.(2018).Vertical Propagation of Middepth Zonal Currents Associated With Surface Wind Forcing in the Equatorial Indian Ocean.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(10),7290-7307.
MLA Huang, Ke,et al."Vertical Propagation of Middepth Zonal Currents Associated With Surface Wind Forcing in the Equatorial Indian Ocean".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.10(2018):7290-7307.
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