Bourlès Bernard auteur aut IRD Arnault Sabine auteur aut IRD Provost C. auteur aut IRD text journalArticle eng text/pdf reformatted digital access 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) specialized ALTIMETRIE DONNEES SATELLITE SATELLITE METEOROLOGIQUE MODELE MATHEMATIQUE HAUTEUR DYNAMIQUE 032DYNEAU 97 C12 20/271-20/283 1992 0148-0227 https://www.documentation.ird.fr/hor/fdi:37884 10.1029/92JC01507 0148-0227 [F B37884] https://www.documentation.ird.fr/hor/fdi:37884 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_33-34/37884.pdf IRD - Base Horizon / Pleins textes 1993-08-23 2009-05-29 fdi:37884 fre