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Analysis of variability and trends of extreme rainfall events over India using 104 years of gridded daily rainfall data

Rajeevan, M and Bhate, J and Jaswal, AK (2008) Analysis of variability and trends of extreme rainfall events over India using 104 years of gridded daily rainfall data. Geophysical Research Letters, 35 (18).

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Abstract

In this study, using 104 years (1901-2004) of high resolution daily gridded rainfall data, variability and long-term trends of extreme rainfall events over central India have been examined. Frequency of extreme rainfall events shows significant inter-annual and inter-decadal variations in addition to a statistically significant long term trend of 6 per decade. Detailed analysis shows that inter-annual, inter-decadal and long-term trends of extreme rainfall events are modulated by the SST variations over the tropical Indian Ocean. The present study supports the hypothesis that the increasing trend of extreme rainfall events in the last five decades could be associated with the increasing trend of sea surface temperatures and surface latent heat flux over the tropical Indian Ocean. In the global warming scenario, the coherent relationship between Indian Ocean SST and extreme rainfall events suggest an increase in the risk of major floods over central India.

Item Type: Article
Additional Information: Copyright of this article belongs to American Geophysical Union.
Uncontrolled Keywords: Global warming; Military operations; Submarine geophysics, Coherent relationships; Daily rainfalls; Extreme rainfalls; High resolutions; Indian oceans; Long terms; Rainfall datums; Sea surface temperatures; Surface latent heat fluxes, Atmospheric temperature, decadal variation; global warming; latent heat flux; rainfall; sea surface temperature; trend analysis, Indian Ocean; Indian Ocean (Tropical)
Subjects: Meteorology and Climatology
Depositing User: Administrator ePrints@MoES
Date Deposited: 11 Jun 2016 09:03
Last Modified: 11 Jun 2016 09:03
URI: http://moeseprints.incois.gov.in/id/eprint/4040

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