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Julien Lamouroux¹
P. De Mey², M. Lux¹ and E. Jeansou ¹

(1) NOVELTIS, Parc Technologique du Canal, Ramonville-Saint-Agne, France
(2) CNRS-LEGOS, Toulouse, France

Main authors appear in bold

The GOCE study aims to assess the capabilities and the limits of the use of the GOCE geoid to improve the shelf and coastal ocean low frequency circulations. The approach consists in using the data assimilation techniques into hydrodynamic models to estimate the present and future benefit of altimetry data use. Assimilation indeed allows not only to control the dynamical simulations but also to access model and data error covariances.
In a first step, the study is dedicated to the assessment of the impact of classical altimetry data assimilation in hydrodynamic models in shelf and coastal areas. Three dedicated areas have been selected for the experiment, namely the North East Atlantic and North West European Continental Shelf, the Iberian Shelf and the North-Western Mediterranean Sea.
Results from various diagnostics and metrics will be shown, with a particular emphasis on the Mediterranean zone where the SYMPHONIE model will be coupled to the SOFA code in the Mediterranean configuration described in De Mey and Benkiran (2002). This configuration will use multivariate vertical EOFs derived from model statistics drawn from a reference simulation (as in Auclair et al., 2003).

Poster presentation

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