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https://doi.org/10.5194/nhess-2020-287
https://doi.org/10.5194/nhess-2020-287
23 Sep 2020
 | 23 Sep 2020
Status: this preprint has been withdrawn by the authors.

Analytical Study of North Indian Oceanic Cyclonic Disturbances with Special Reference to Extremely Severe Cyclonic Storm Fani: Meteorological Variability, India's Preparedness with Terrible Aftermath

Soumen Chatterjee

Abstract. Having a total coastal tract of about 7,516 km with 5,400 km long mainland coastline, India is highly vulnerable to natural hazards like tropical cyclones (TCs). The analysis based on the historical dataset (1891–2019) of TCs over North Indian Ocean (NIO) also claims that the four coastal states (Andhra Pradesh, Odisha, Tamil Nadu and West Bengal) and one union territory (Pondicherry) on the east coast frequently face cyclonic storm than other coastal parts of India. The seasonal distribution (Pre-monsoon, Monsoon and Post-monsoon) of cyclonic storms over the Arabian Sea (AS) and Bay of Bengal (BoB) in last 150 years also help to unfold the fact that the Odisha and West Bengal coast are exposed to TCs mostly during the monsoon season (June to September) encompassing with strong winds, heavy rainfall and high storm surge. The extremely severe cyclonic storm (ESCS) Fani is the rarest summer cyclones, the first one in 43 years to strike the coastal part of Odisha on May 3, 2019 and one of the three worst cyclones in last 150 years with a sustained surface wind speed of 175–180 kmph. Odisha has been affected horribly due to the vulnerability of Fani. Although the death toll was limited within 64 due to rapid evacuation of nearly 1.68 million people, the killer cyclone has caused irreparable damages in social sectors (housing, education and food security), productive sectors (agriculture, fisheries and livestock) and also informative sectors (power, telecommunication, road, water facilities and public buildings). The estimated costs have reached nearly 4.18 billion USD only in Odisha. The southern part of West Bengal has also affected badly due to intense downpour and very high storm surges (2–3 m above mean sea level). To map the flooded areas of Odisha and West Bengal due to intense rainfall (cause inland flooding) and storm surges (cause coastal flooding), the Sentinel-1 SAR GRD dataset has also been used in Google Earth Engine (GEE) environment to link with the deadly cyclone Fani. So, the present study successfully advocates the historical background of TCs over NIO with particular reference to ESCS Fani including its meteorological variability, preparedness and the trail of devastation.

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Soumen Chatterjee

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Soumen Chatterjee
Soumen Chatterjee

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