Monsoon variability and change

Kulkarni, Ashwini and Koteswara Rao, Kundeti (2023) Monsoon variability and change. In: Social and Economic Impact of Earth Sciences. Springer Nature Singapore, Singapore, pp. 61-75. ISBN 978-981-19-6929-4

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Abstract

India receives 75% of the annual rainfall during the summer monsoon season June through September. The summer monsoon (south-west monsoon) rainfall exhibits variations on all time scales, diurnal to multi-decadal. The year-to-year variability is characterized by excess and deficit monsoons which have a large impact on livelihood of the Indian population, agriculture, health, power sector, irrigation, etc. Hence, to study the variability of the Indian monsoon is of paramount importance. In this chapter, we discuss intra-seasonal and interannual variability of the Indian monsoon using century-long period data. The observed changes and trends in seasonal rainfall have also been examined. In the backdrop of unequivocal warming of the earth’s surface, it is important to study the impact of warming on the amount and pattern of seasonal rainfall. We present spatial distribution of projected changes in seasonal rainfall using IPCC-Coupled Model Inter-comparison Project 5 (CMIP5) model simulations for two Representative Concentration Pathways (RCP), RCP4.5 and RCP8.5, in three time epochs; near term, middle of the century and long term.

Item Type:	Book Section
Authors:	Kulkarni, Ashwini and Koteswara Rao, Kundeti
Editors:	Editors Email ORCID Gahalaut, Vineet K. UNSPECIFIED UNSPECIFIED Rajeevan, M. UNSPECIFIED UNSPECIFIED
Document Language:	Language English
Subjects:	Natural Sciences Natural Sciences > Earth sciences > Geology, hydrology, meteorology > Climatology and weather Technology > Agriculture
Divisions:	Azim Premji University - Bengaluru > School of Climate Change and Sustainability
Full Text Status:	None
URI:	http://publications.azimpremjiuniversity.edu.in/id/eprint/7402
Publisher URL:	https://doi.org/10.1007/978-981-19-6929-4_4

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