Model Simulated Equatorial Convection over the Indian Ocean

High-resolution model depictions of organized deep convection structure in the equatorial Indian Ocean and their associated connection to the atmospheric Rossby and Kelvin modes is examined in this study. These modes were suggested to have a role in the evolution of Madden Julian Oscillation (MJO) by Rui and Wang (1990). We will discuss local air-sea interaction versus moisture convergence driven by the Kelvin and Rossby wave circulations in controlling the deep convection. The model used for this study is the fully coupled air-ocean-wave Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS® ) cycling with the NRL Atmospheric Variational Data Assimilation System and Navy Coupled Ocean Data Assimilation systems every 6 hours. Five months of model data from Aug-Dec 2011 during CINDY/DYNAMO/LASP/AMIE field campaign is analyzed.