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Increase in spatial spread of extreme warm day temperature events: Regional to national perspective for India (1951-2014)
, Sehgal V.K., Dhakar R., Varghese E., Das D.K.
Published in KRISHI Publication
2020
Volume: 118
   
Issue: 12
Pages: 1930 - 1938
Abstract
This study analysed gridded temperature dataset for last six decades over India and its different agro-climatic zones to determine the changes in land area affected by extreme warm day temperatures. The re-sults indicated an unequivocal increase in the area in-fluenced by different levels of extreme warm days over the country; the rate was significantly higher during the last three decades. The increase in land ar-ea affected by extreme-of-extreme temperature events occurred at a higher rate compared to the low-frequency extremes. Statistical tests indicated clear change in the probability distribution of the land area affected by extremes, signifying that comparatively high-frequency extremes are occurring over larger ar-eas. The results showed regional dissimilarity, with five agro-climatic zones (ACZ-02, 09, 10, 11, 12) show-ing increase in land area under most levels of extremes, and three agro-climate zones (ACZ-08, 13, 14) show-ing increase in land area for a few extreme levels. © 2020, Indian Academy of Sciences.
About the journal
JournalCurrent Science
PublisherKRISHI Publication
Open AccessNo