RISE IN FREQUENCY AND INTENSITY OF CYCLONES IN ARABIAN SEA: UPSC Daily Important Topic | 3 October 2021
RISE IN FREQUENCY AND INTENSITY OF CYCLONES IN ARABIAN SEA
Topic: Geophysiography
A 52% increase was noticed in the frequency of cyclones over the Arabian Sea between 2001 and 2019, and an 8% decrease over the Bay of Bengal.
REASONS
- Surface temparatures in the Arabian Sea have increased rapidly during the past century due to global warming.
- Temparature Now is 1.2˚-1.4˚ C higher than the temparature witnessed four decades ago. These warmer temparatures support active connection, heavy rainfall and intense cyclones.
- The rising temparature is also enavling the Arabian Sea to supply ample energy for the intensification of cyclones.
- The Arabian Sea isd also providing conductive wind shear for cyclones. For instance, a higher level easterly wind drove the depression of cyclone ockhi from the Bay of Bengal to the Arabian Sea.
CONCERNS
- This underlines the increasing risk of disasters hitting the west coast of India if the trend continues to hold over the years.