Data/hora: 13/06/2024 10:02:14

Provedor de dados: 	5	
País: 	France	
Título: 	Western boundary upwelling dynamics off Oman	
Autores: 	Vic, Clement; Capet, Xavier; Roullet, Guillaume; Carton, Xavier; ,.	
Data: 	2017-05	
Ano: 	2017	
Palavras-chave: 	Oman; Upwelling; Arabian sea; ROMS; Rossby waves; Eddy kinetic energy.	
Resumo: 	Despite its climatic and ecosystemic significance, the coastal upwelling that takes place off Oman is not well understood. A primitive-equation, regional model forced by climatological wind stress is used to investigate its dynamics and to compare it with the better-known Eastern Boundary Upwellings (EBUs). The solution compares favorably with existing observations, simulating well the seasonal cycles of thermal structure, surface circulation (mean and turbulent), and sea-surface temperature (SST). There is a 1.5-month lag between the maximum of the upwelling-favorable wind-stress-curl forcing and the oceanic response (minima in sea-surface height and SST), which we attribute to onshore-propagating Rossby waves. A southwestward-flowing undercurrent (opposite to the direction of the near-surface flow) is also simulated with a core depth of 1000 m, much deeper than found in EBUs (150–200 m). An EKE budget reveals that, in contrast to EBUs, the upwelling jet is more prone to barotropic than baroclinic instability and the contribution of locally-generated instabilities to EKE is higher by an order of magnitude. Advection and redistribution of EKE by standing mesoscale features also play a significant role in EKE budget.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00382/49350/49752.pdf

DOI:10.1007/s10236-017-1044-5

http://archimer.ifremer.fr/doc/00382/49350/	
Editor: 	Springer Heidelberg	
Formato: 	application/pdf	
Fonte: 	Ocean Dynamics (1616-7341) (Springer Heidelberg), 2017-05 , Vol. 67 , N. 5 , P. 585-595	
Fonte: 	The Author(s) 2017. This article is published with open access at Springerlink.com

info:eu-repo/semantics/openAccess

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