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Volcanic eruptions and their effects on soi, sst andandian summer monsoon rainfall

Joshi, IS (2010) Volcanic eruptions and their effects on soi, sst andandian summer monsoon rainfall. Disaster Advances, 3 (4). pp. 582-585.

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Abstract

Recent studies have pointed out the modification of Climate by aerosols released in the stratosphere by strong volcanic eruptions. The values of percentage departures of rainfall for India as a whole for each monsoon season (June-September) and volcanoesjiaving volcanic explosivity index(VEI)4 or more, for a period of 1010 years(1901-2009), are investigated to examine the effects of the eruptions on the rainfall activity over India, An attempt has also been made in the present study to investigate the effects of volcanic eruptions on southern oscillation index(SOI) and sea surface temperatures(SST). Hie present study has suggested deficient rainfall during first and the year following year of volcanic eruption in 17 out of 22 years and -Ve SOI in 14 out of 22 years in Indian summer monsoon . The present study also suggested an increase in sea surface temperatures in 12 out of 22 years following the volcanic eruption.

Item Type: Article
Additional Information: Copyright of this article belongs to Disaster Advances
Uncontrolled Keywords: explosive volcanism; monsoon; rainfall; sea surface temperature; soil surface; Southern Oscillation; stratosphere; volcanic eruption, India
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 29 May 2015 08:58
Last Modified: 29 May 2015 08:58
URI: http://moeseprints.incois.gov.in/id/eprint/777

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