DOI: 10.1002/2017JC013294
Scopus记录号: 2-s2.0-85041168208
论文题名: Impacts of the Mesoscale Ocean-Atmosphere Coupling on the Peru-Chile Ocean Dynamics: The Current-Induced Wind Stress Modulation
作者: Oerder V. ; Colas F. ; Echevin V. ; Masson S. ; Lemarié F.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 2 起始页码: 812
结束页码: 833
语种: 英语
英文关键词: Eastern Boundary Upwelling Systems
; mesoscale eddies
; ocean-atmosphere interaction
; wind stress
; wind work
Scopus关键词: air-sea interaction
; atmosphere-ocean system
; coastal zone
; Ekman pumping
; energy dissipation
; kinetic energy
; mesoscale eddy
; oceanic circulation
; upwelling
; wave-current interaction
; wind stress
; Chile
; Pacific Ocean
; Pacific Ocean (East)
; Peru
英文摘要: The ocean dynamical responses to the surface current-wind stress interaction at the oceanic mesoscale are investigated in the South-East Pacific using a high-resolution regional ocean-atmosphere coupled model. Two simulations are compared: one includes the surface current in the wind stress computation while the other does not. In the coastal region, absolute wind velocities are different between the two simulations but the wind stress remains very similar. As a consequence, the mean regional oceanic circulation is almost unchanged. On the contrary, the mesoscale activity is strongly reduced when taking into account the effect of the surface current on the wind stress. This is caused by a weakening of the eddy kinetic energy generation near the coast by the wind work and to intensified offshore eddy damping. We show that, above coherent eddies, the current-stress interaction generates eddy damping through Ekman pumping and eddy kinetic energy dissipation through wind work. This alters significantly the coherent eddy vertical structures compared with the control simulation, weakening the temperature and vorticity anomalies and increasing strongly the vertical velocity anomalies associated to eddies. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114489
Appears in Collections: 气候减缓与适应
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作者单位: LOCEAN-IPSL, IRD/CNRS/Sorbonne Universités (UPMC)/MNHM, UMR7159, Paris, France; Instituto Milenio de Oceanografía, Universidad de Concepción, Concepción, Chile; INRIA, Université Grenoble-Alpes, CNRS, LJK, Grenoble, France
Recommended Citation:
Oerder V.,Colas F.,Echevin V.,et al. Impacts of the Mesoscale Ocean-Atmosphere Coupling on the Peru-Chile Ocean Dynamics: The Current-Induced Wind Stress Modulation[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(2)