Enhancement of eddy-Ekman pumping inside anticyclonic eddies with wind-parallel extension: Satellite observations and numerical studies in the South China Sea
Li, JM; Qi, YQ; Jing, ZY; Wang, J; jingzhiyou@scsio.ac.cn
2014
发表期刊JOURNAL OF MARINE SYSTEMS
ISSN0924-7963
卷号132页码:150-161
摘要Eddy-Ekman pumping was recently proposed as a potential mechanism to explain the high chlorophyll (Chl) concentrations inside anticyclonic eddies (AEs). In this paper, the influence of eddy-shape changes on the strength of eddy-Ekman pumping is investigated for AEs in the South China Sea (SCS) through multi-satellite data and numerical experiments. The results mainly indicate that wind-parallel (-perpendicular) extensions may enhance (reduce) eddy-Ekman pumping inside AEs. First an AE detected in northern SCS winter shows significant Chl-wind relation and uplifted near-surface isopycnals when its shape extension becomes parallel with the wind direction. In addition, satellite observations indicate significant eddy-Ekman-pumping signals appear in the central-northern SCS during the winter monsoon and in the central-eastern SCS during the winter and summer monsoons, whenever and wherever AEs' shapes show wind-parallel extensions. This regional-seasonal characteristic is further confirmed by the numerical experiments, which display a positive linear relationship between wind-parallel projective length and the strength of eddy-Ekman pumping. This study may contribute to extend the theory of eddy-Ekman pumping with emphasizing the importance of eddy shapes and wind directions, especially in the situations that high spatial-temporal variability appears in eddies and/or the wind field. (C) 2014 Elsevier B.V. All rights reserved.
部门归属[Li, Junmin ; Qi, Yiquan ; Jing, Zhiyou] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Wang, Jia] NOAA Great Lakes Environm Res Lab, Ann Arbor, MI USA
关键词Eddies Ekman Pumping Wind-parallel Extension The South China Sea Monsoons Chlorophylls
学科领域Geology ; Marine & Freshwater Biology ; Oceanography
资助者Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office
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收录类别sci
资助项目LTO
资助者Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11010203, XDA11020201]; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-204, SQ201101]; National Natural Science Foundation of China [U1033003, 41 276022, 41230962]; NOAA Climate Program Office
WOS记录号WOS:000334141400013
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10561
专题热带海洋环境国家重点实验室(LTO)
通讯作者jingzhiyou@scsio.ac.cn
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GB/T 7714
Li, JM,Qi, YQ,Jing, ZY,et al. Enhancement of eddy-Ekman pumping inside anticyclonic eddies with wind-parallel extension: Satellite observations and numerical studies in the South China Sea[J]. JOURNAL OF MARINE SYSTEMS,2014,132:150-161.
APA Li, JM,Qi, YQ,Jing, ZY,Wang, J,&jingzhiyou@scsio.ac.cn.(2014).Enhancement of eddy-Ekman pumping inside anticyclonic eddies with wind-parallel extension: Satellite observations and numerical studies in the South China Sea.JOURNAL OF MARINE SYSTEMS,132,150-161.
MLA Li, JM,et al."Enhancement of eddy-Ekman pumping inside anticyclonic eddies with wind-parallel extension: Satellite observations and numerical studies in the South China Sea".JOURNAL OF MARINE SYSTEMS 132(2014):150-161.
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