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Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19
India as a hotspot for air pollution has heavy black carbon (BC) and dust (DU) loadings. BC has been identified to significantly impact the Indian climate. However, whether BC-climate interactions regulate Indian DU during the premonsoon season is unclear. Here, using long-term Reanalysis data, we s...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8983761/ https://www.ncbi.nlm.nih.gov/pubmed/35383203 http://dx.doi.org/10.1038/s41467-022-29468-1 |
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author | Wei, Linyi Lu, Zheng Wang, Yong Liu, Xiaohong Wang, Weiyi Wu, Chenglai Zhao, Xi Rahimi, Stefan Xia, Wenwen Jiang, Yiquan |
author_facet | Wei, Linyi Lu, Zheng Wang, Yong Liu, Xiaohong Wang, Weiyi Wu, Chenglai Zhao, Xi Rahimi, Stefan Xia, Wenwen Jiang, Yiquan |
author_sort | Wei, Linyi |
collection | PubMed |
description | India as a hotspot for air pollution has heavy black carbon (BC) and dust (DU) loadings. BC has been identified to significantly impact the Indian climate. However, whether BC-climate interactions regulate Indian DU during the premonsoon season is unclear. Here, using long-term Reanalysis data, we show that Indian DU is positively correlated to northern Indian BC while negatively correlated to southern Indian BC. We further identify the mechanism of BC-dust-climate interactions revealed during COVID-19. BC reduction in northern India due to lockdown decreases solar heating in the atmosphere and increases surface albedo of the Tibetan Plateau (TP), inducing a descending atmospheric motion. Colder air from the TP together with warmer southern Indian air heated by biomass burning BC results in easterly wind anomalies, which reduces dust transport from the Middle East and Sahara and local dust emissions. The premonsoon aerosol-climate interactions delay the outbreak of the subsequent Indian summer monsoon. |
format | Online Article Text |
id | pubmed-8983761 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-89837612022-04-22 Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 Wei, Linyi Lu, Zheng Wang, Yong Liu, Xiaohong Wang, Weiyi Wu, Chenglai Zhao, Xi Rahimi, Stefan Xia, Wenwen Jiang, Yiquan Nat Commun Article India as a hotspot for air pollution has heavy black carbon (BC) and dust (DU) loadings. BC has been identified to significantly impact the Indian climate. However, whether BC-climate interactions regulate Indian DU during the premonsoon season is unclear. Here, using long-term Reanalysis data, we show that Indian DU is positively correlated to northern Indian BC while negatively correlated to southern Indian BC. We further identify the mechanism of BC-dust-climate interactions revealed during COVID-19. BC reduction in northern India due to lockdown decreases solar heating in the atmosphere and increases surface albedo of the Tibetan Plateau (TP), inducing a descending atmospheric motion. Colder air from the TP together with warmer southern Indian air heated by biomass burning BC results in easterly wind anomalies, which reduces dust transport from the Middle East and Sahara and local dust emissions. The premonsoon aerosol-climate interactions delay the outbreak of the subsequent Indian summer monsoon. Nature Publishing Group UK 2022-04-05 /pmc/articles/PMC8983761/ /pubmed/35383203 http://dx.doi.org/10.1038/s41467-022-29468-1 Text en © The Author(s) 2022 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Wei, Linyi Lu, Zheng Wang, Yong Liu, Xiaohong Wang, Weiyi Wu, Chenglai Zhao, Xi Rahimi, Stefan Xia, Wenwen Jiang, Yiquan Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title | Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title_full | Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title_fullStr | Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title_full_unstemmed | Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title_short | Black carbon-climate interactions regulate dust burdens over India revealed during COVID-19 |
title_sort | black carbon-climate interactions regulate dust burdens over india revealed during covid-19 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8983761/ https://www.ncbi.nlm.nih.gov/pubmed/35383203 http://dx.doi.org/10.1038/s41467-022-29468-1 |
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