"Annual frequency of cyclonic disturbances (Maximum sustained windspeeds of 17 knots or more), Cyclones (34 knots or more) and Severe Cyclones (48 knots or more) over the Bay of Bengal (BOB), Arabian Sea (AS) and land surface of India" (PDF).
في كومنز صور وملفات عن: موسم أعاصير شمال المحيط الهندي "Annual Frequency of Cyclonic Disturbances (Maximum Wind Speed of 17 Knots or More), Cyclones (34 Knots or More) and Severe Cyclones (48 Knots or More) Over the Bay of Bengal (BOB), Arabian Sea (AS) and Land Surface of India" (PDF).