Disentangling increasing compound extremes at regional scale during Indian summer monsoon

Abstract Compound extremes exhibit greater adverse impacts than their univariate counterparts. Studies have reported changes in frequency and the spatial extent of extremes in India; however, investigation of compound extremes is in the infancy state. This study investigates the historical variation...

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Autores principales:	Ravi Kumar Guntu, Ankit Agarwal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/24bf213e767348ee9b44de0e966379b6
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spelling	oai:doaj.org-article:24bf213e767348ee9b44de0e966379b62021-12-02T16:43:42ZDisentangling increasing compound extremes at regional scale during Indian summer monsoon10.1038/s41598-021-95775-02045-2322https://doaj.org/article/24bf213e767348ee9b44de0e966379b62021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95775-0https://doaj.org/toc/2045-2322Abstract Compound extremes exhibit greater adverse impacts than their univariate counterparts. Studies have reported changes in frequency and the spatial extent of extremes in India; however, investigation of compound extremes is in the infancy state. This study investigates the historical variation of compound dry and hot extremes (CDHE) and compound wet and cold extremes (CWCE) during the Indian summer monsoon period from 1951 to 2019 using monthly data. Results are analyzed for 10 identified homogeneous regions for India. Our results unravelled that CDHE (CWCE) frequency has increased (decreased) by 1–3 events per decade for the recent period (1977–2019) relative to the base period (1951–1976). Overall, the increasing (decreasing) pattern of CDHE (CWCE) is high across North-central India, Western India, North-eastern India and South-eastern coastlines. Our findings help in identification of the parts of the country affected by frequent and widespread CDHE during the recent period, which is alarming. More detailed assessments are required to disentangle the complex physical process of compound extremes to improve risk management options.Ravi Kumar GuntuAnkit AgarwalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ravi Kumar Guntu Ankit Agarwal Disentangling increasing compound extremes at regional scale during Indian summer monsoon
description	Abstract Compound extremes exhibit greater adverse impacts than their univariate counterparts. Studies have reported changes in frequency and the spatial extent of extremes in India; however, investigation of compound extremes is in the infancy state. This study investigates the historical variation of compound dry and hot extremes (CDHE) and compound wet and cold extremes (CWCE) during the Indian summer monsoon period from 1951 to 2019 using monthly data. Results are analyzed for 10 identified homogeneous regions for India. Our results unravelled that CDHE (CWCE) frequency has increased (decreased) by 1–3 events per decade for the recent period (1977–2019) relative to the base period (1951–1976). Overall, the increasing (decreasing) pattern of CDHE (CWCE) is high across North-central India, Western India, North-eastern India and South-eastern coastlines. Our findings help in identification of the parts of the country affected by frequent and widespread CDHE during the recent period, which is alarming. More detailed assessments are required to disentangle the complex physical process of compound extremes to improve risk management options.
format	article
author	Ravi Kumar Guntu Ankit Agarwal
author_facet	Ravi Kumar Guntu Ankit Agarwal
author_sort	Ravi Kumar Guntu
title	Disentangling increasing compound extremes at regional scale during Indian summer monsoon
title_short	Disentangling increasing compound extremes at regional scale during Indian summer monsoon
title_full	Disentangling increasing compound extremes at regional scale during Indian summer monsoon
title_fullStr	Disentangling increasing compound extremes at regional scale during Indian summer monsoon
title_full_unstemmed	Disentangling increasing compound extremes at regional scale during Indian summer monsoon
title_sort	disentangling increasing compound extremes at regional scale during indian summer monsoon
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/24bf213e767348ee9b44de0e966379b6
work_keys_str_mv	AT ravikumarguntu disentanglingincreasingcompoundextremesatregionalscaleduringindiansummermonsoon AT ankitagarwal disentanglingincreasingcompoundextremesatregionalscaleduringindiansummermonsoon
_version_	1718383501602979840

Disentangling increasing compound extremes at regional scale during Indian summer monsoon

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