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. La-saison-cyclonique, sud-ouest de l'océan Indien est connue pour sa forte activité cyclonique avec 7 tempêtes nommées, corrélée à une phase positive de l'El Niño Southern Oscillation (ENSO) et du Dipôle de l'océan Indien (IOD), phénomènes explicités dans la partie 2.1.3 de la thèse. Toutes ces 7 tempêtes se sont intensifiées pour devenir des cyclones tropicaux : 4 cyclones de catégorie 4 et Indlala), 2 cyclones de catégorie 3 (Gamède et Jaya) et un cyclone de catégorie 1 (Humba), 2006.

E. Au-début-de-cette-saison-du-cycle, L. Correspondant-À-un-fort-Épisode-de, and . Niña, maximum à la fin 2011 et s'atténuant ensuite. Les figures A.10 à A.18 donnent les résultats correspondants par la décomposition spectrale de la fonction ? et des 8 variables environnementales. Par rapport à la saison 2006-2007, on remarque tout d'abord sur la figure A.10 les valeurs relativement faibles de l'indice ? avec un contrôle marqué (PVE = 39%) par les ondes ER. L'évolution bilinéaire joue un rôle moins important (PVE = 11%), en relation avec le réchauffement tardif de la SST sur l'Indien Sud-ouest (figure A.12 a et b) associé au retrait des conditions La Niña. La TB associée est cependant anormalement chaude (convection moins fréquente) à l'ouest du bassin (figure A.11 a et b) La formation de Bingiza et Cherono en deuxième moitié de saison semble être liée au passage de deux ondes ER avec une signature très nette sur le tourbillon (figures A