Data/hora: 11/06/2024 03:19:59

Provedor de dados: 	5	
País: 	France	
Título: 	Wind-induced barotropic oscillations around the Saint Pierre and Miquelon archipelago (North-west Atlantic)	
Autores: 	Bezaud, Marion; Lazure, Pascal; Le Cann, Bernard.	
Data: 	2020-04	
Ano: 	2020	
Palavras-chave: 	Barotropic modelling; Wind induced oscillations; Continental shelf wave; Saint Pierre and Miquelon archipelago; Newfoundland.	
Resumo: 	We investigate the nearly barotropic oscillations recently observed around the Saint Pierre and Miquelon (SPM) archipelago. They were recorded by two ADCPs at about 30 m depth during winter and spring 2014. These oscillations were the dominant signal on the currents with a period of 2 to 4 days. Our analysis shows that these oscillations were triggered by the wind. To investigate these oscillations, a 2D numerical model was implemented at a regional scale. The results from a realistic simulation confirmed the impact of wind forcing on ocean dynamics in the region. They also showed amplification of these oscillations around SPM, particularly in the north-west of the archipelago and near Burin Peninsula. Analyses suggested the influence of continental shelf wave dynamics at a ‘regional’ scale. This regional wave then triggers a ‘local’ scale continental shelf wave propagating anticyclonically around SPM in ∼2 days. Schematic modelling simulations with periodic wind stress forcing and relaxation after a gust of wind show a strong current response in this region with a wind stress periodicity centred around 2 days, which is attributed to resonance in the SPM area.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00606/71803/70291.pdf

DOI:10.1016/j.csr.2020.104062

https://archimer.ifremer.fr/doc/00606/71803/	
Editor: 	Elsevier BV	
Formato: 	application/pdf	
Fonte: 	Continental Shelf Research (0278-4343) (Elsevier BV), 2020-04 , Vol. 195 , P. 104062 (19p.)	
Fonte: 	info:eu-repo/semantics/openAccess

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