Three-dimensional oceanic eddy analysis in the Southern California Bight from a numerical product
Dong, CM; Lin, XY; Liu, Y; Nencioli, F; Chao, Y; Guan, YP; Chen, D; Dickey, T; McWilliams, JC; cdong@atmos.ucla.edu
2012
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN0148-0227
卷号117页码:C00H14
摘要With eight islands, complex coastlines and bottom topography, strong wind curls, and frequent upwelling fronts, the Southern California Bight (SCB) is an area with strong eddy activity. By applying an automated eddy detection scheme to a 12 year high-resolution numerical product of the oceanic circulation in the SCB, a three-dimensional eddy data set is developed. It includes information for each eddy's location, polarity, intensity, size, boundary, and moving path at nine vertical levels. Through a series of statistical analyses applied to the eddy data set, three-dimensional statistical characteristics of mesoscale and submeoscale eddy variations in the SCB are elucidated; these shed light on how eddies are generated, evolve, and terminate. A significant percentage of eddies is found to be generated around islands and headlands along the coastline, which indicates that islands in the SCB play a vital role in eddy generation. Three types of eddies, based on shape, are identified from the numerical product: bowl, lens, and cone. A dynamic analysis shows that some submesoscale eddies with finite local Rossby numbers tend to be ageostrophic balanced while mesoscale eddies are in geostrophic balance. The present research results are useful for the interpretation of data sets obtained during the interdisciplinary Santa Barbara Channel Radiance in a Dynamic Ocean (RaDyo) field experiment conducted on September 3-25, 2008.
部门归属[Dong, Changming; McWilliams, James C.] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA; [Lin, Xiayan; Liu, Yu; Guan, Yuping] Chinese Acad Sci, State Key Lab Trop Oceanog, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Lin, Xiayan; Liu, Yu] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China; [Nencioli, Francesco] Univ Aix Marseille 2, Lab Oceanog Phys & Biogeochim, UMR CNRS IRD 6535, Ctr Oceanol Marseille, F-13288 Marseille 9, France; [Chao, Yi] CALTECH, NASA Jet Prop Lab, Pasadena, CA 91109 USA; [Chao, Yi] Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA; [Chen, Dake] SIO SOA, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China; [Dickey, Tommy] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA
学科领域Oceanography
语种英语
资助项目LTO
WOS记录号WOS:000298932000002
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10219
专题热带海洋环境国家重点实验室(LTO)
通讯作者cdong@atmos.ucla.edu
推荐引用方式
GB/T 7714
Dong, CM,Lin, XY,Liu, Y,et al. Three-dimensional oceanic eddy analysis in the Southern California Bight from a numerical product[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2012,117:C00H14.
APA Dong, CM.,Lin, XY.,Liu, Y.,Nencioli, F.,Chao, Y.,...&cdong@atmos.ucla.edu.(2012).Three-dimensional oceanic eddy analysis in the Southern California Bight from a numerical product.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,117,C00H14.
MLA Dong, CM,et al."Three-dimensional oceanic eddy analysis in the Southern California Bight from a numerical product".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 117(2012):C00H14.
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