Recent Research at GFDL on Surface Temperature Trends and Simulations of Tropical Cyclone Activity in the Indian Ocean Region - Monitoring and Prediction of Tropical Cyclones in the Indian Ocean and Climate Change - page 55

Fig. 4: This figure has the same layout of panels as in Fig. 3 but shown
separately for the (a) Dec.-Feb.; (b) Mar.-May; (c) June-Aug.; and
(d) Sept.-Nov. seasons.