%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Boulanger, Jean-Philippe
%A Durand, E.
%A Duvel, J.P.
%A Menkès, Christophe
%A Delecluse, P.
%A Lengaigne, Mathieu
%A Madec, Gurvan
%A Masson, S.
%T Role of non-linear oceanic processes in the response to westerly wind events : new implications for the 1997 El Nino onset
%D 2003
%L fdi:010080228
%G ENG
%J Geophysical Research Letters
%@ 0094-8276
%K CIRCULATION OCEANIQUE ; COURANT ; EL NINO ; VENT ; TEMPERATURE DE SURFACE
%K ONDE KELVIN
%K PACIFIQUE ; ZONE EQUATORIALE
%M ISI:000168066100050
%N 8
%P 1603-1606
%U https://www.documentation.ird.fr/hor/fdi:010080228
%V 28
%W Horizon (IRD)
%X In March 1997, a strong westerly wind event (WWE) occurred in the western equatorial Pacific prior to the 1997-1998 EL Nino event. It produced downwelling Kelvin waves that interacted non linearly with the surface temperature, salinity and zonal current fronts located at the eastern edge of the warm-fresh pool (EEWP). This non-linear interaction locally increased zonal currents by a factor of three compared to a theoretical linear response, and advected the EEWP at an unexpected rate (-l m/s) to which the ocean-atmosphere coupled system may have been responding rapidly to trigger El Nino conditions.
%$ 032DYNEAU