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Disentangling increasing compound extremes at regional scale during Indian summer monsoon
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 compo...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8360945/ https://www.ncbi.nlm.nih.gov/pubmed/34385529 http://dx.doi.org/10.1038/s41598-021-95775-0 |
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author | Guntu, Ravi Kumar Agarwal, Ankit |
author_facet | Guntu, Ravi Kumar Agarwal, Ankit |
author_sort | Guntu, Ravi Kumar |
collection | PubMed |
description | 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 | Online Article Text |
id | pubmed-8360945 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-83609452021-08-13 Disentangling increasing compound extremes at regional scale during Indian summer monsoon Guntu, Ravi Kumar Agarwal, Ankit Sci Rep Article 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. Nature Publishing Group UK 2021-08-12 /pmc/articles/PMC8360945/ /pubmed/34385529 http://dx.doi.org/10.1038/s41598-021-95775-0 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Guntu, Ravi Kumar Agarwal, Ankit Disentangling increasing compound extremes at regional scale during Indian summer monsoon |
title | 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_short | Disentangling increasing compound extremes at regional scale during Indian summer monsoon |
title_sort | disentangling increasing compound extremes at regional scale during indian summer monsoon |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8360945/ https://www.ncbi.nlm.nih.gov/pubmed/34385529 http://dx.doi.org/10.1038/s41598-021-95775-0 |
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