OASIS : le couplage océan-atmosphère

EnglishThe preliminary trials of a climate simulation using a coupled ocean atmosphere model have been made possible by the building of a universal coupler called OASIS. This tool has allowed the merging, in a common format, of the two general circulation models, developed independently by two French laboratoires. The first experiment allowed the simulation of the dynamics of the tropical Pacific Ocean when coupled to the global atmospheric circulation for a period of ten years. A true numerical laboratory is now established to conduct further coupled experiments. francaisLe coup d'envoi d'une serie d'experiences climatiques simulant le systeme couple ocean-atmosphere a ete donne, grâce a la construction d'un coupleur universel baptise Oasis. Cet outil a permis d'integrer, dans une meme structure informatique, deux modeles de circulation generale developpes independamment par deux laboratoires francais. La premiere experience scientifique a permis de simuler la dynamique de l'ocean Pacifique tropical couple a la circulation atmospherique globale, sur une periode longue de dix ans. Un veritable laboratoire numerique est maintenant en place pour conduire d'autres experiences couplees.