%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES %A Delcroix, Thierry %A Boulanger, Jean-Philippe %A Masia, François %A Menkès, Christophe %T Geosat-derived sea level and surface current anomalies in the Equatorial Pacific during the 1986-1989 El Nino and La Nina %D 1994 %L fdi:42330 %G ENG %J Journal of Geophysical Research %@ 0148-0227 %K EL NINO ; NIVEAU MARIN ; COURANT GEOSTROPHIQUE ; ONDE ROSSBY ; ANOMALIE ; VARIATION INTERANNUELLE ; DONNEES SATELLITE ; ANALYSE DE DONNEES %K PACIFIQUE TROPICAL %N C12 %P 25,093-25,107 %U https://www.documentation.ird.fr/hor/fdi:42330 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/42330.pdf %V 99 %W Horizon (IRD) %X Equatorial wave dynamics are essential in most oceanic models for reproducing aspects of the El Nino-Southern Oscillation (ENSO) phenomenon. In this paper, observational evidence of first baroclinic equatorial Kelvin and first symetric meridional Rossby waves is found in Geosat-derived sea level anomalies (SLA) and surface zonal current anomalies (ZCA) in the Equatorial Pacific ocean during the 1986-1987 El Nino and the ensuing 1988-1989 La Nina. This was made possible after extensive quality control and specific processing of the recently improved Geosat geophysical data records pertaining to the 17-day Exact Repeat Mission. In particular, the processing was made so that the Geosat-derived ZCA best fit near-surface zonal currents from three Equatorial moorings at 165°E, 140°W, and 110°W. (D'après résumé d'auteur) %$ 032DYNEAU