The two-member team from IIT-Gandhinagar found that climate warming and dynamic contributions are 1.5 times more in the case of sub-daily extreme rainfall than daily extreme rainfall. The frequency of sub-daily rainfall extreme has also witnessed a two-fold increase between 1979 and 2015, say researchers from the Indian Institute of Technology-Gandhinagar. The two-member team from IIT-Gandhinagar found that climate warming and dynamic contributions are 1.5 times more in the case of sub-daily extreme rainfall than daily extreme rainfall. For 1 Kelvin temperature increase, the half-hourly rainfall extreme increases by about 10%, while it is only about 6% in the case of daily rainfall extreme. “We found that urban flooding is more prone to sub-daily rainfall extremes.

Source: The Hindu March 03, 2018 01:38 UTC