Monsoonal droughts in India – A recent assessment
Journal Title: Papers on Global Change IGBP - Year 2015, Vol 22, Issue 22
Abstract
Drought frequencies during the years 1901–2010 were investigated over three spatial units – All India, 5 Homogeneous Regions (HR) and 36 Meteorological subdivisions (MSs). The All-India rainfall trend is in fact indicative of no trend, while the Northeast HR (NER) shows a signifi cant decrease. Furthermore, a signifi cant decrease in rainfallis to be observed over Himachal Pradesh, Madhya Pradesh, Maharashtra and the Southern Peninsular region, and a signifi cant increase over West Bengal, Punjab, Haryana, Coastal Karnataka, North Interior Karnataka and Rayalaseema. There have been 21 All-India drought years during the last century, of which 13 were linked to El Niño. When compared with HRs, the WCR is highly prone to El Niño while the NER is not affected by this global tele-connection. Western Uttar Pradesh, Eastern Rajasthan, Uttarakhand, Vidharbha and Telangana shared 11–10 drought occasions with El Niño. Maximum frequencies of droughts (21) were reported for East Madhya Pradesh within the WCR and Orissa within the Central Northeast Region (CNER), while Andaman, Nicobar and Rayalaseema experienced minimum drought episodes (12) over the last century.
Authors and Affiliations
Manjunatha S. Tyalagadi, Alaka Gadgil, Gaggam Krishnakumar
Keywords
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- EP ID EP349540
- DOI 10.1515/igbp-2015-0013
- Views 177
- Downloads 0
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