CUSB Environmental Sciences Head Dr. P.P. Sarthi receives project on Cyclonic Storm

To study the cyclonic disturbances over the Bay of Bengal under climate change, Dr. Pradhan Parth Sarthi, Head, Centre for Environmental Sciences, Central University of South Bihar (CUSB) has received a major research project funding under Climate Modelling Network Programme of Department of Science and Technology (DST), Govt of India. This is the second research project of Dr. Sarthi under this programme. Earlier, this programme was initiated by DST in 2012 and selected seven researchers were selected as Climate Modelling experts, Dr. Prath Sarthi was one of them.  

Providing more details Dr. Sarthi said that under this project, intensity, frequency, wind speed and rainfall of cyclonic disturbances will be studied for past time periods as well as under climate change using sophisticated mathematical models at high speed computer at CUSB, Patna. Such study is important to take crucial decision on disaster and drought conditions during non-monsoon and monsoon seasons over Bihar and Jharkhand. For this purpose, CUSB is collaborated with Cyclone Warning Division of India Meteorological Department (IMD), New Delhi. Such study may be utilized by Department of Disasters, Govt of Bihar.

Dr. Sarthi briefed that in India, Cyclonic Storms generally form during non-monsoon seasons over oceanic surfaces of the Bay of Bengal and the Arabian Sea and move towards Indian land mass. Whenever such cyclonic storms form over Bay of Bengal, it moves towards north westerly direction and enters inland areas of Bihar through Jharkhand. The cloudy weather associated with cyclonic storm produces wide spread rainfall over Bihar region and moderate to high wind normally uprooted kachha houses, electricity and telephone poles and brings communication failure. Therefore cyclonic storm is important for Bihar region. The cyclonic disturbances over the Bay of Bengal during for the period of 1891-2008 have already showed a significant decreasing trend. Cyclonic Storms of lower intensity, known as Monsoon Depression, forms during Summer Monsoon Season over Bay of Bengal. Such depressions are of horizontal diameter of ~ 2000 km and after formation over the northern Bay of Bengal move north westward across the Indo-Gangetic plains, bringing good amount of rainfall over eastern states including Bihar and Jharkhand during summer monsoon season and compensate the deficit of summer monsoon rainfall over this region. Dr. Parth Sarthi told that trends in depression during 1979-2012 have considerably decreased. 



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