Estimating the North-Atlantic mean surface-topography by inversion of hydrographic and lagrangian data

The non-linear inverse model described in Mercier et al. (1992) is used to estimate the mean surface topography of the North Atlantic and its formal error. The surface is based on a large hydrographic and Lagrangian data set and has spatial resolution of 2-degrees in latitude by 2.5-degrees in longi...

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Bibliographic Details
Main Authors: Le Traon, Pierre-yves, Mercier, Herle
Format: Article in Journal/Newspaper
Language:English
Published: Gauthier Villars 1992
Subjects:
Online Access:https://archimer.ifremer.fr/doc/00079/18977/17955.pdf
https://archimer.ifremer.fr/doc/00079/18977/
Description
Summary:The non-linear inverse model described in Mercier et al. (1992) is used to estimate the mean surface topography of the North Atlantic and its formal error. The surface is based on a large hydrographic and Lagrangian data set and has spatial resolution of 2-degrees in latitude by 2.5-degrees in longitude. The formal error is between 4 and 8 cm. Contrary to previous estimations, this takes into account the errors with regard both to the density field and to the estimation of the velocity field at a reference level.