IOCAS-IR  > 海洋环流与波动重点实验室
Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current
Zhu, Yanan1,2,3; Qiu, Bo3; Lin, Xiaopei1,2; Wang, Fan2,4
2018-09-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume123Issue:9Pages:6449-6462
Corresponding AuthorQiu, Bo(bo@soest.hawaii.edu)
AbstractInterannual variability in the mesoscale eddy field in the Agulhas Return Current (ARC) of 32-42 degrees S and 15-35 degrees E is investigated based on satellite altimeter observations and state estimate from the Estimating the Circulation and Climate of the Ocean, Phase II from 1993 to 2016. It is found that the interannual modulation of eddy kinetic energy in the ARC region is externally mediated by the wind stress forcing that generates the westward propagating sea surface height anomalies across the South Indian Ocean subtropical gyre. The wind-forced sea surface height anomalies influence the upstream Agulhas Current volume transports. By modulating the intensity of barotropic instability of the ARC mean flow centered around the retroflection region, the Agulhas Current inflow variability leads to the downstream interannual eddy kinetic energy fluctuations in the ARC region.
Keywordeddy kinetic energy Agulhas Return Current interannual variability
DOI10.1029/2018JC014333
Indexed BySCI
Language英语
Funding ProjectChina's National Key Research and Development Projects[2016YFA0601803] ; National Natural Science Foundation of China[41490641] ; National Natural Science Foundation of China[41521091] ; National Natural Science Foundation of China[U1606402] ; Qingdao National Laboratory for Marine Science and Technology[2017ASKJ01] ; China Scholarship Council
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000447552600024
PublisherAMER GEOPHYSICAL UNION
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/160433
Collection海洋环流与波动重点实验室
Corresponding AuthorQiu, Bo
Affiliation1.Ocean Univ China, Phys Oceanog Lab, CIMST, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
3.Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA
4.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Yanan,Qiu, Bo,Lin, Xiaopei,et al. Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(9):6449-6462.
APA Zhu, Yanan,Qiu, Bo,Lin, Xiaopei,&Wang, Fan.(2018).Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(9),6449-6462.
MLA Zhu, Yanan,et al."Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.9(2018):6449-6462.
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