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Monsoon and EQUINOO:Validation of the Educated Guess for the Season of 2019


Affiliations
1 Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru 500 012, India
2 Indian National Centre for Ocean Information Services, Hyderabad 500 090, India
 

The summer monsoon of 2019 was rather unusual in terms of the all-India rainfall, with 32.8% deficit in June followed by rainfall being 4.6%, 15.4% and 52.3% above average for July, August and September respectively, resulting in the June–September rainfall being 10% above average (http://imdpune.gov.in/), on the borderline of excess rainfall. In an earlier study1, we had analysed the performance of monsoon in June and July, and the important factors determining the interannual variation, viz. the El Niño Southern Oscillation (ENSO) and the Equatorial Indian Ocean Oscillation (EQUINOO).
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  • Monsoon and EQUINOO:Validation of the Educated Guess for the Season of 2019

Abstract Views: 408  |  PDF Views: 137

Authors

Sulochana Gadgil
Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru 500 012, India
P. A. Francis
Indian National Centre for Ocean Information Services, Hyderabad 500 090, India
P. N. Vinayachandran
Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru 500 012, India

Abstract


The summer monsoon of 2019 was rather unusual in terms of the all-India rainfall, with 32.8% deficit in June followed by rainfall being 4.6%, 15.4% and 52.3% above average for July, August and September respectively, resulting in the June–September rainfall being 10% above average (http://imdpune.gov.in/), on the borderline of excess rainfall. In an earlier study1, we had analysed the performance of monsoon in June and July, and the important factors determining the interannual variation, viz. the El Niño Southern Oscillation (ENSO) and the Equatorial Indian Ocean Oscillation (EQUINOO).

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DOI: https://doi.org/10.18520/cs%2Fv117%2Fi11%2F1782-1784