Indian monsoon variability on millennial-orbital timescales
The Indian summer monsoon (ISM) monsoon is critical to billions of people living in the region. Yet, significant debates remain on primary ISM drivers on millennial-orbital timescales. Here, we use speleothem oxygen isotope (δ18O) data from Bittoo cave, Northern India to reconstruct ISM variability...
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ftpubmed:oai:pubmedcentral.nih.gov:4829866 2023-05-15T13:46:08+02:00 Indian monsoon variability on millennial-orbital timescales Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spötl, Christoph Edwards, R. Lawrence Zhang, Haiwei Li, Xianglei Yi, Liang Ning, Youfeng Cai, Yanjun Lui, Weiguo Lui Breitenbach, Sebastian F. M. 2016-04-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829866/ http://www.ncbi.nlm.nih.gov/pubmed/27071753 https://doi.org/10.1038/srep24374 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829866/ http://www.ncbi.nlm.nih.gov/pubmed/27071753 http://dx.doi.org/10.1038/srep24374 Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep24374 2016-04-24T00:12:24Z The Indian summer monsoon (ISM) monsoon is critical to billions of people living in the region. Yet, significant debates remain on primary ISM drivers on millennial-orbital timescales. Here, we use speleothem oxygen isotope (δ18O) data from Bittoo cave, Northern India to reconstruct ISM variability over the past 280,000 years. We find strong coherence between North Indian and Chinese speleothem δ18O records from the East Asian monsoon domain, suggesting that both Asian monsoon subsystems exhibit a coupled response to changes in Northern Hemisphere summer insolation (NHSI) without significant temporal lags, supporting the view that the tropical-subtropical monsoon variability is driven directly by precession-induced changes in NHSI. Comparisons of the North Indian record with both Antarctic ice core and sea-surface temperature records from the southern Indian Ocean over the last glacial period do not suggest a dominant role of Southern Hemisphere climate processes in regulating the ISM variability on millennial-orbital timescales. Text Antarc* Antarctic ice core PubMed Central (PMC) Antarctic Indian Scientific Reports 6 1 |
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Article Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spötl, Christoph Edwards, R. Lawrence Zhang, Haiwei Li, Xianglei Yi, Liang Ning, Youfeng Cai, Yanjun Lui, Weiguo Lui Breitenbach, Sebastian F. M. Indian monsoon variability on millennial-orbital timescales |
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Article |
description |
The Indian summer monsoon (ISM) monsoon is critical to billions of people living in the region. Yet, significant debates remain on primary ISM drivers on millennial-orbital timescales. Here, we use speleothem oxygen isotope (δ18O) data from Bittoo cave, Northern India to reconstruct ISM variability over the past 280,000 years. We find strong coherence between North Indian and Chinese speleothem δ18O records from the East Asian monsoon domain, suggesting that both Asian monsoon subsystems exhibit a coupled response to changes in Northern Hemisphere summer insolation (NHSI) without significant temporal lags, supporting the view that the tropical-subtropical monsoon variability is driven directly by precession-induced changes in NHSI. Comparisons of the North Indian record with both Antarctic ice core and sea-surface temperature records from the southern Indian Ocean over the last glacial period do not suggest a dominant role of Southern Hemisphere climate processes in regulating the ISM variability on millennial-orbital timescales. |
format |
Text |
author |
Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spötl, Christoph Edwards, R. Lawrence Zhang, Haiwei Li, Xianglei Yi, Liang Ning, Youfeng Cai, Yanjun Lui, Weiguo Lui Breitenbach, Sebastian F. M. |
author_facet |
Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spötl, Christoph Edwards, R. Lawrence Zhang, Haiwei Li, Xianglei Yi, Liang Ning, Youfeng Cai, Yanjun Lui, Weiguo Lui Breitenbach, Sebastian F. M. |
author_sort |
Kathayat, Gayatri |
title |
Indian monsoon variability on millennial-orbital timescales |
title_short |
Indian monsoon variability on millennial-orbital timescales |
title_full |
Indian monsoon variability on millennial-orbital timescales |
title_fullStr |
Indian monsoon variability on millennial-orbital timescales |
title_full_unstemmed |
Indian monsoon variability on millennial-orbital timescales |
title_sort |
indian monsoon variability on millennial-orbital timescales |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829866/ http://www.ncbi.nlm.nih.gov/pubmed/27071753 https://doi.org/10.1038/srep24374 |
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Antarctic Indian |
geographic_facet |
Antarctic Indian |
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Antarc* Antarctic ice core |
genre_facet |
Antarc* Antarctic ice core |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829866/ http://www.ncbi.nlm.nih.gov/pubmed/27071753 http://dx.doi.org/10.1038/srep24374 |
op_rights |
Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
op_doi |
https://doi.org/10.1038/srep24374 |
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Scientific Reports |
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