Publications des scientifiques de l'IRD

Bourlès Bernard, Arnault Sabine, Provost C. (1992). Toward altimetric data assimilation in a Tropical Atlantic model. Journal of Geophysical Research, 97 (C12), p. 20/271-20/283. ISSN 0148-0227.

Titre du document
Toward altimetric data assimilation in a Tropical Atlantic model
Année de publication
1992
Type de document
Article
Auteurs
Bourlès Bernard, Arnault Sabine, Provost C.
Source
Journal of Geophysical Research, 1992, 97 (C12), p. 20/271-20/283 ISSN 0148-0227
We present three types of experiments of sequential assimilation of altimetric data in a linear tropical Atlantic model, using an analysis technique we developed. In the first experiments we assimilate dynamic height fields calculated from simulated data in order to study the impacts of assimilations. In the second ones we assimilate dynamic height anomaly fields calculated from simulated data, and finally, in the third ones we use sea level anomaly fields obtainend from altimetric data from Geosat. Perturbations are observed in the Eastern part of the basin, due to Kelvin waves artificially generated in the West Equatorial basin, due to Kelvin waves artificially generated in the West Equatorial basin. However, we show that altimetric data may be useful for improving model simulations in the tropics when appropriate assimilation techniques are used. (Résumé d'auteur)
Plan de classement
Dynamique des eaux [032DYNEAU]
Descripteurs
ALTIMETRIE ; DONNEES SATELLITE ; SATELLITE METEOROLOGIQUE ; MODELE MATHEMATIQUE ; HAUTEUR DYNAMIQUE
Localisation
Fonds IRD [F B37884]
Identifiant IRD
fdi:37884
Contact