Distribution of Monsoon Rainfall in India During El Nino Associated Drought Situtations

S A Saseendran; L S Rathore; R K Dutta

doi:10.56093/aaz.v35i1.65199

Authors

S A Saseendran National Centre for Medium Range Weather Forecasting, Department of Science & Technology, Mausam Bhavan Complex, Lodi Road, New Delhi
L S Rathore National Centre for Medium Range Weather Forecasting, Department of Science & Technology, Mallsam Bhavan Complex, Lodi Road, New Delhi
R K Dutta National Centre for Medium Range Weather Forecasting, Department of Science & Technology, Mallsam Bhavan Complex, Lodi Road, New Delhi

https://doi.org/10.56093/aaz.v35i1.65199

Abstract

The temporal and spatial variability of south west monsoon rainfall in India during years of (i) drought associated with El Nino, (ii) drought not associated with El Nino, and (iii) nondrought associated with El Nino during 1901-1990 were studied. The study revealed that August is the most dependable month for rainfall during drought years associated with El Nino. During drought not associated with El Nino, for most of the sub-divisions, June is the most dependable month. During nondrought years, associated with El Nino, the monsoon was found to start sluggishly in June, but subsequently it picked up, in amount of rainfall during July and August. Most of the sub-divisions received normal or excess rainfall during these months. Rainfall scenario at individual sub-divisions can be derived from the results.