An Overview of Tropical Cyclone Formation over the Bay of Bengal

Author: Nasreen Akter
DOI: doi.org/10.70279/bmj-v1-i1-1092
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Tropical Cyclone is characterized by a warm-core low pressure system at the center called eye. It is often accompanied with strong gusty winds, torrential rains and storm surges which create great damage to life and property. The outer rain bands of the eye are made up of convective cells embedded in straight form rain. The horizontal shape of an outer rain band is generally prominent with equiangular spiral geometry but in the Bay of Bengal the eastern side band of the cyclone Sidr (2007) was a long, quasi-straight shape in the meridional direction that remained stationary relative to the cyclone center. In fact, the Bay of Bengal experiences many differences in forming tropical cyclone. The formation of TC is bimodal and the post-monsoon cyclone frequency is almost double than that of pre-monsoon cyclone. Again, pre-monsoon environments are more favorable for cyclogenesis. So, it is very important to improve the understanding of the cyclone characteristics and monitor their intensity in the Bay of Bengal.