DOI: 10.1002/2014GL061770
论文题名: Implications of refined altimetry on estimates of mesoscale activity and eddy-driven offshore transport in the Eastern Boundary Upwelling Systems
作者: Capet A. ; Mason E. ; Rossi V. ; Troupin C. ; Faugère Y. ; Pujol I. ; Pascual A.
刊名: Geophysical Research Letters
ISSN: 0094-9636
EISSN: 1944-9367
出版年: 2014
卷: 41, 期: 21 起始页码: 7602
结束页码: 7610
语种: 英语
英文关键词: AVISO
; Eastern Boundary Upwelling Systems
; eddy kinetic energy
; eddy tracking
; eddy-induced transport
; sea level anomalies
Scopus关键词: Kinetic energy
; Sea level
; AVISO
; Eddy kinetic energy
; Eddy tracking
; eddy-induced transport
; Sea level anomaly
; Upwelling systems
; Kinetics
; algorithm
; altimetry
; atmospheric transport
; biogeochemical cycle
; data set
; eastern boundary current
; estimation method
; kinetic energy
; mesoscale meteorology
; sea level change
英文摘要: We investigate the extent to which the recently upgraded version of the Ssalto/Duacs sea level anomaly product affects the description of mesoscale activity in the Eastern Boundary Upwelling Systems (EBUS). Drifter observations confirm that the new data set released by Archiving, Validation and Interpretation of Satellite Oceanographic data (AVISO) in April 2014 (DT14) offers an enhanced description of mesoscale activity for the four EBUS. DT14 returns significantly higher eddy kinetic energy levels (+80%) within a 300 km coastal band, where mesoscale structures are known to induce important lateral physical and biogeochemical fluxes. When applied to DT14, an automatic eddy detection algorithm detects more eddies in the EBUS (+37%), and lower eddy radius estimates, in comparison with results using the former altimetry product (DT10). We show that despite higher eddy densities, the smaller eddy radii result in westward eddy transport estimates that are smaller than those obtained from DT10 (-12%). Key PointsNew altimetric product returns higher eddy kinetic energy in EBUS (+80%)Eddy tracking detects more abundant, smaller, and faster spinning eddies in EBUSOffshore eddy transport estimates from EBUS to the open ocean are reduced by 12% ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912123145&doi=10.1002%2f2014GL061770&partnerID=40&md5=35986fef1d6e410d78c42cfb0e6d1226
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6900
Appears in Collections: 气候减缓与适应
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作者单位: IMEDEA(CSIC-UIB), Esporles, Spain
Recommended Citation:
Capet A.,Mason E.,Rossi V.,et al. Implications of refined altimetry on estimates of mesoscale activity and eddy-driven offshore transport in the Eastern Boundary Upwelling Systems[J]. Geophysical Research Letters,2014-01-01,41(21).