Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean
<jats:title>Abstract</jats:title><jats:p>Variability and trends of the south Asian monsoon at different time scales makes the region susceptible to climate-related natural disasters such as droughts and floods. Because of its importance, different studies have examined the climatic...
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ftzbmed:oai:frl.publisso.de:frl:6466410 2024-01-07T09:46:41+01:00 Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean Hari, Vittal Pathak, Amey Koppa, Akash 2020 https://repository.publisso.de/resource/frl:6466410 https://doi.org/10.1007/s00382-020-05577-9 eng eng https://repository.publisso.de/resource/frl:6466410 https://doi.org/10.1007/s00382-020-05577-9 https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370671690206441#!, 56(7-8):2149-2161 Article Indian summer monsoon rainfall South Atlantic Ocean Arabian Sea cyclones Zeitschriftenartikel 2020 ftzbmed https://doi.org/10.1007/s00382-020-05577-9 2023-12-10T23:07:30Z <jats:title>Abstract</jats:title><jats:p>Variability and trends of the south Asian monsoon at different time scales makes the region susceptible to climate-related natural disasters such as droughts and floods. Because of its importance, different studies have examined the climatic factors responsible for the recent changes in monsoon strength. Here, using observations and climate model experiments we show that monsoon strength is driven by the variations of south Atlantic Ocean sea surface temperature (SASST). The mechanism by which SASST is modulating the monsoon could be explained through the classical Matsuno-Gill response, leading to changes in the characteristics of vertical wind shear in the Arabian Sea. The decline in the vertical wind shear to the warming of SASST is associated with anomalous lower (upper)-level easterlies (westerlies). This further leads to a strong increase in the frequency of the Arabian Sea cyclones; and also prohibits the transport of moisture to the Indian landmass, which eventually reduces the strength of monsoon. The conditions in the SASST which drove these responses are aggravated by greenhouse gas emission, revealing the prominent role played by anthropogenic warming. If, with proper mitigation, these emissions are not prevented, further increases in the SASST is expected to result in increased Arabian sea cyclones and reduced monsoon strength.</jats:p> Article in Journal/Newspaper South Atlantic Ocean PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Indian Climate Dynamics 56 7-8 2149 2161 |
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Open Polar |
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PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Article Indian summer monsoon rainfall South Atlantic Ocean Arabian Sea cyclones |
spellingShingle |
Article Indian summer monsoon rainfall South Atlantic Ocean Arabian Sea cyclones Hari, Vittal Pathak, Amey Koppa, Akash Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
topic_facet |
Article Indian summer monsoon rainfall South Atlantic Ocean Arabian Sea cyclones |
description |
<jats:title>Abstract</jats:title><jats:p>Variability and trends of the south Asian monsoon at different time scales makes the region susceptible to climate-related natural disasters such as droughts and floods. Because of its importance, different studies have examined the climatic factors responsible for the recent changes in monsoon strength. Here, using observations and climate model experiments we show that monsoon strength is driven by the variations of south Atlantic Ocean sea surface temperature (SASST). The mechanism by which SASST is modulating the monsoon could be explained through the classical Matsuno-Gill response, leading to changes in the characteristics of vertical wind shear in the Arabian Sea. The decline in the vertical wind shear to the warming of SASST is associated with anomalous lower (upper)-level easterlies (westerlies). This further leads to a strong increase in the frequency of the Arabian Sea cyclones; and also prohibits the transport of moisture to the Indian landmass, which eventually reduces the strength of monsoon. The conditions in the SASST which drove these responses are aggravated by greenhouse gas emission, revealing the prominent role played by anthropogenic warming. If, with proper mitigation, these emissions are not prevented, further increases in the SASST is expected to result in increased Arabian sea cyclones and reduced monsoon strength.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Hari, Vittal Pathak, Amey Koppa, Akash |
author_facet |
Hari, Vittal Pathak, Amey Koppa, Akash |
author_sort |
Hari, Vittal |
title |
Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
title_short |
Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
title_full |
Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
title_fullStr |
Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
title_full_unstemmed |
Dual response of Arabian Sea cyclones and strength of Indian monsoon to Southern Atlantic Ocean |
title_sort |
dual response of arabian sea cyclones and strength of indian monsoon to southern atlantic ocean |
publishDate |
2020 |
url |
https://repository.publisso.de/resource/frl:6466410 https://doi.org/10.1007/s00382-020-05577-9 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
http://lobid.org/resources/99370671690206441#!, 56(7-8):2149-2161 |
op_relation |
https://repository.publisso.de/resource/frl:6466410 https://doi.org/10.1007/s00382-020-05577-9 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s00382-020-05577-9 |
container_title |
Climate Dynamics |
container_volume |
56 |
container_issue |
7-8 |
container_start_page |
2149 |
op_container_end_page |
2161 |
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1787428561301274624 |