Eddy characteristics in the South Indian Ocean as inferred from surface drifters
Zheng, S.; Du, Y.; Li, J.; Cheng, X.; duyan@scsio.ac.cn
2015
发表期刊OCEAN SCIENCE
卷号11期号:3页码:361-371
文章类型1812-0784
摘要Using a geometric eddy identification method, cyclonic and anticyclonic eddies from submesoscale to mesoscale in the South Indian Ocean (SIO) have been statistically investigated based on 2082 surface drifters from 1979 to 2013. A total of 19 252 eddies are identified, 60% of them anticyclonic eddies. For the submesoscale eddies (radius r < 10 km), the ratio of cyclonic eddies (3183) to anticyclonic eddies (7182) is 1 to 2. In contrast, the number of anticyclonic and cyclonic eddies with radius r >= 10 km is almost equal. Mesoscale and submesoscale eddies show different spatial distributions. Eddies with radius r >= 100 km mainly appear in the Leeuwin Current, a band along 25 degrees S, Mozambique Channel, and Agulhas Current, areas characterized by large eddy kinetic energy. The submesoscale anticyclonic eddies are densely distributed in the subtropical basin in the central SIO. The number of mesoscale eddies shows statistically significant seasonal variability, reaching a maximum in October and minimum in February.
部门归属[Zheng, S.; Du, Y.; Cheng, X.] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Li, J.] Naval Inst Hydrog Surveying & Charting, Tianjin 300061, Peoples R China ; LTO
学科领域Meteorology & Atmospheric Sciences ; Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15123
专题热带海洋环境国家重点实验室(LTO)
通讯作者duyan@scsio.ac.cn
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GB/T 7714
Zheng, S.,Du, Y.,Li, J.,et al. Eddy characteristics in the South Indian Ocean as inferred from surface drifters[J]. OCEAN SCIENCE,2015,11(3):361-371.
APA Zheng, S.,Du, Y.,Li, J.,Cheng, X.,&duyan@scsio.ac.cn.(2015).Eddy characteristics in the South Indian Ocean as inferred from surface drifters.OCEAN SCIENCE,11(3),361-371.
MLA Zheng, S.,et al."Eddy characteristics in the South Indian Ocean as inferred from surface drifters".OCEAN SCIENCE 11.3(2015):361-371.
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