Dynamics of Amphan Cyclone and associated changes in ocean, land meteorological and atmospheric parameters

The low-pressure system developed in the Bay of Bengal and Andaman Sea during March-October, often forms tropical cyclones, depending upon intensity widespread destruction occurs areas where landfall takes place along Indian coastal region. On 20 May, 2020, cyclone Amphan hit coast at Bakkhali, West Bengal, afternoon (1330 IST). 19 strengthened into a super cyclonic storm, with strong wind speed up to 220 km/h. This affected large population India Bangladesh. More than twenty-two thousand houses were damaged millions people shifted safe due spread COVID-19, rescue missions quite challenging. most eastern states India, heavy rainfall occurred causing floods track cyclones. Using multi-satellite, ground Argo floats data, we have analyzed meteorological atmospheric parameters May 2020. Our detailed analysis shows pronounced changes (CO mole fraction, total ozone column) ocean (chlorophyll concentration, dissolved oxygen, salinity, sea surface sub-surface temperature) before after cyclone. Changes such as caused by its change moves over land.