Oerder V. auteur aut IRD Colas François auteur aut IRD Echevin Vincent auteur aut IRD Masson S. auteur aut IRD Lemarie F. auteur aut IRD text journalArticle eng text/pdf born digital access The ocean dynamical responses to the surface current-wind stress interaction at the oceanic mesoscale are investigated in the South-East Pacific using a high-resolution regional ocean-atmosphere coupled model. Two simulations are compared: one includes the surface current in the wind stress computation while the other does not. In the coastal region, absolute wind velocities are different between the two simulations but the wind stress remains very similar. As a consequence, the mean regional oceanic circulation is almost unchanged. On the contrary, the mesoscale activity is strongly reduced when taking into account the effect of the surface current on the wind stress. This is caused by a weakening of the eddy kinetic energy generation near the coast by the wind work and to intensified offshore eddy damping. We show that, above coherent eddies, the current-stress interaction generates eddy damping through Ekman pumping and eddy kinetic energy dissipation through wind work. This alters significantly the coherent eddy vertical structures compared with the control simulation, weakening the temperature and vorticity anomalies and increasing strongly the vertical velocity anomalies associated to eddies. specialized wind stress ocean-atmosphere interaction mesoscale eddies wind work Eastern Boundary Upwelling Systems PACIFIQUE PEROU CHILI 032 020 123 2 812-833 2018 2169-9275 https://www.documentation.ird.fr/hor/fdi:010072688 10.1002/2017jc013294 2169-9275 [F B010072688] https://www.documentation.ird.fr/hor/fdi:010072688 https://www.documentation.ird.fr/intranet/publi/2018/04/010072688.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-05-04 2023-07-11 fdi:010072688 fre