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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
Source PublicationOCEAN SCIENCE
ISSN1812-0784
Volume9Issue:1Pages:171-182
AbstractSpatial 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.
DepartmentLTO
Subject AreaMeteorology & Atmospheric Sciences ; Oceanography
Funding OrganizationThis 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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Language英语
Funding OrganizationThis 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 IDWOS:000318228000003
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10940
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorduyy@lreis.ac.cn
Recommended Citation
GB/T 7714
[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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