Data/hora: 10/06/2024 08:12:43

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Reconstructability of 3-Dimensional Upper Ocean Circulation from SWOT Sea Surface Height Measurements	
Autores: 	Qiu, Bo; Chen, Shuiming; Klein, Patrice; Ubelmann, Clement; Fu, Lee-lueng; Sasaki, Hideharu.	
Data: 	2016-03	
Ano: 	2016	
Palavras-chave: 	Variability; Models and modeling; General circulation models; Vertical motion; Circulation/ Dynamics; Quasigeostrophic models; Mesoscale processes; Observational techniques and algorithms; Oceanic variability; Altimetry.	
Resumo: 	Utilizing the framework of effective surface quasi-geostrophic (eSQG) theory, we explored the potential of reconstructing the 3D upper ocean circulation structures, including the balanced vertical velocity (w) field, from high-resolution sea surface height (SSH) data of the planned SWOT satellite mission. Specifically, we utilized the 1/30°, submesoscale-resolving, OFES model output and subjected it through the SWOT simulator that generates the along-swath SSH data with expected measurement errors. Focusing on the Kuroshio Extension region in the North Pacific where regional Rossby numbers range from 0.22 to 0.32, we found that the eSQG dynamics constitutes an effective framework for reconstructing the 3D upper ocean circulation field. Using the modeled SSH data as input, the eSQG-reconstructed relative vorticity (ζ) and w fields are found to reach a correlation of 0.7–0.9 and 0.6–0.7, respectively, in the 1,000m upper ocean when compared to the original model output. Degradation due to the SWOT sampling and measurement errors in the input SSH data for the ζ and w reconstructions is found to be moderate, 5–25% for the 3D ζ field and 15-35% for the 3D w field. There exists a tendency for this degradation ratio to decrease in regions where the regional eddy variability (or Rossby number) increases.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00309/42032/41331.pdf

DOI:10.1175/JPO-D-15-0188.1

https://archimer.ifremer.fr/doc/00309/42032/	
Editor: 	Amer Meteorological Soc	
Formato: 	application/pdf	
Fonte: 	Journal Of Physical Oceanography (0022-3670) (Amer Meteorological Soc), 2016-03 , Vol. 46 , N. 3 , P. 947-963	
Fonte: 	2016 American Meteorological Society

info:eu-repo/semantics/openAccess

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