Indian Weather Events inducing Climate Changes in the Tropics

We study the link between sudden wind and rain events over the Indian ocean using QuikSCAT and TRMM satellite data and an Indian Ocean-Atmosphere-Land model. Comparing the results forced by daily- or monthly- averaged values, we find that the sudden events significantly affect the ocean from bi-weekly to annual changes, with consequences on the Pacific warm pool and beyond. By classifying TRMM data into weather regimes we find that the northward propagation of the Indian ocean signals up to the Bengladesh is linked to the eastward propagation of the MJOs around the Planet.