Delcroix Thierry auteur aut IRD Eldin Gérard auteur aut IRD McPhaden M.J. auteur aut IRD Morlière Alain auteur aut IRD text journalArticle eng text/pdf reformatted digital access In February-April 1991, episodes of 2 to 8 m s-1 westerly winds of 3 to 11 days' duration occurred in the Western Pacific warm pool. Resulting modifications of the upper ocean in current and hydrology are quantified using data from an equatorial mooring at 165°E and from three cruises within 30 days of one another along 165°E. During westerly wind bursts (WWB) stronger tha m s-1, the upper 50 m becomes isothermal to within O.1°C and sea surface temperature (SST) drops by 0.3.-0.4°C between 5°S and 2.5°N. Conversely, STT starts warming and the upper 50 m restratifies in 4-5 days after the end of WWB. In contrasts to previous observations, salinity between 0 and 50 m appears almost unaffected by WWB; it freshens by 0.4 practical salinity unit in March within an area of 1°-2° of latitude aroud the equator but not necessarily in direct response to WWB. As for zonal circulation, surface equatorial flow accelerates eastward jets both develop from 2°N to 2°S in the upper and lower halves of the temperature mixed layer, respectively. Changes in zonal mass transport in this layer were as much as 30 Sv between 2.5°S and 2.5°N from one cruise to the next. (Résumé d'auteur) specialized INTERACTION OCEAN ATMOSPHERE VENT CIRCULATION OCEANIQUE MASSE D'EAU CIRCULATION ZONALE HYDROLOGIE MARINE ANALYSE DE DONNEES TEMPERATURE DE SURFACE SALINITE ALIZE PACIFIQUE EQUATORIAL OUEST 032DYNEAU 98 C9 16,379-16,385 1993 0148-0227 https://www.documentation.ird.fr/hor/fdi:39869 10.1029/93JC01261 0148-0227 [F B39869] https://www.documentation.ird.fr/hor/fdi:39869 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39869.pdf IRD - Base Horizon / Pleins textes 1994-08-05 2015-07-02 fdi:39869 fre