A clustering analysis of eddies' spatial distribution in the South China Sea
[Yi, J.; Du, Y.; Wang, X.; Zhou, C.] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China; [Wang, X.] Shandong Univ Sci & Technol, Geomat Coll, Qingdao 266510, Peoples R China; [He, Z.] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China; [He, Z.] Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361005, Peoples R China; duyy@lreis.ac.cn
2013
发表期刊OCEAN SCIENCE
ISSN1812-0784
卷号9期号:1页码:171-182
摘要Spatial variation is important for studying the mesoscale eddies in the South China Sea (SCS). To investigate such spatial variations, this study made a clustering analysis on eddies' distribution using the K-means approach. Results showed that clustering tendency of anticyclonic eddies (AEs) and cyclonic eddies (CEs) were weak but not random, and the number of clusters were proved greater than four. Finer clustering results showed 10 regions where AEs densely populated and 6 regions for CEs in the SCS. Previous studies confirmed these partitions and possible generation mechanisms were related. Comparisons between AEs and CEs revealed that patterns of AE are relatively more aggregated than those of CE, and specific distinctions were summarized: (1) to the southwest of Luzon Island, AEs and CEs are generated spatially apart; AEs are likely located north of 14 degrees N and closer to shore, while CEs are to the south and further offshore. (2) The central SCS and Nansha Trough are mostly dominated by AEs. (3) Along 112 degrees E, clusters of AEs and CEs are located sequentially apart, and the pairs off Vietnam represent the dipole structures. (4) To the southwest of the Dongsha Islands, AEs are concentrated to the east of CEs. Overlaps of AEs and CEs in the northeastern and southern SCS were further examined considering seasonal variations. The northeastern overlap represented near-concentric distributions while the southern one was a mixed effect of seasonal variations, complex circulations and topography influences.
部门归属LTO
学科领域Meteorology & Atmospheric Sciences ; Oceanography
资助者This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers.
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资助者This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers. ; This is a contribution to Research Project 41071250 of the National Science Foundation of China and 088RA500KA of the Innovation Projects of the State Key Laboratory of Resource and Environment Information System, Chinese Academy of Sciences. We thank the US Naval Research Laboratory for providing the SSH data set and appreciate the comments from reviews and readers.
WOS记录号WOS:000318228000003
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被引频次:1[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/344004/10940
专题热带海洋环境国家重点实验室(LTO)
通讯作者duyy@lreis.ac.cn
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[Yi, J.,Du, Y.,Wang, X.,et al. A clustering analysis of eddies' spatial distribution in the South China Sea[J]. OCEAN SCIENCE,2013,9(1):171-182.
APA [Yi, J..,Du, Y..,Wang, X..,Zhou, C.] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China.,[Wang, X.] Shandong Univ Sci & Technol, Geomat Coll, Qingdao 266510, Peoples R China.,...&duyy@lreis.ac.cn.(2013).A clustering analysis of eddies' spatial distribution in the South China Sea.OCEAN SCIENCE,9(1),171-182.
MLA [Yi, J.,et al."A clustering analysis of eddies' spatial distribution in the South China Sea".OCEAN SCIENCE 9.1(2013):171-182.
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