01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-05-0144 |
| Title of Abstract | Extreme Weather Events (EWEs) in Coastal India: Long-term Trends and mortality pattern over four decades |
| Authors | Waseem P. C.*, Preethi V. P., Shinoj P. |
| Organisation | ICAR⿿Central Marine Fisheries Research Institute, Kochi |
| Address | Research Scholar, ICAR-CMFRI HQ, Kochi Kochi, Kerala, India Pincode: 682018 E-mail: waseempkl95@gmail.com |
| Country | India |
| Presentation | Poster |
| Abstract | This study investigates long-term trends in the occurrence of Extreme Weather Events (EWEs) and its related mortality in the maritime states of India using 42 years of data (1981⿿2023) from India Meteorological Department (IMD). The analysis focuses on three major EWEs: Floods and heavy rains dominate all EWEs (83%) across maritime states, with western coastal states such as Karnataka (98.27%), Kerala (95.34%), and Maharashtra (85%) being the most affected. In eastern coastal states, alongside floods and heavy rains, heatwaves (Odisha: 42%, Andhra Pradesh: 27%, West Bengal: 18%) and cyclones (Andhra Pradesh: 15%, Tamil Nadu: 11%, Odisha: 8%) are more prevalent, making them more vulnerable than their western counterparts. Andhra Pradesh, Odisha, Gujarat, and Maharashtra recorded high mortalities across these events. Floods and heavy rains were the major cause of deaths in most states, except in Odisha (cyclones), Andhra Pradesh (heatwaves), and Telangana (heatwaves). The death-to-event ratio shows cyclones are far more lethal than other events in most coastal states, while floods dominate mortalities in Karnataka and heatwaves in Telangana. Over the two 20-year periods, the percentage change in the frequency of EWEs has increased across all coastal states except West Bengal, while most saw declining mortality rates. Kerala and Tamil Nadu are exceptions, with rising mortality highlighting persistent vulnerabilities. Heatwave-related mortality has increased in recent decades across all states. Events once rare in some states have now become frequent, while others continue to experience increasing frequency due to climate change. This highlights the urgent need for state- and event-specific disaster management plans. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | Extreme weather events, Climate change, flood and heavy rains, Cyclones, Heat waves, Death to event ratio, Mortality rate |
| For Awards | no |