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 (delta O-18) data from Bittoo cave, Northern India to reconstruct ISM variab...
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Online Access: | http://ir.ieecas.cn/handle/361006/5756 https://doi.org/10.1038/srep24374 |
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ftchinacascieeca:oai:ir.ieecas.cn:361006/5756 2023-06-11T04:06:25+02:00 Indian monsoon variability on millennial-orbital timescales Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spoetl, 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://ir.ieecas.cn/handle/361006/5756 https://doi.org/10.1038/srep24374 英语 eng SCIENTIFIC REPORTS http://ir.ieecas.cn/handle/361006/5756 doi:10.1038/srep24374 Science & Technology ICE-AGE TERMINATIONS PAST 800,000 YEARS SUMMER-MONSOON CLIMATE VARIABILITY ASIAN MONSOON HULU CAVE RECORD CORE PRECIPITATION GREENLAND Science & Technology - Other Topics Multidisciplinary Sciences Article 期刊论文 2016 ftchinacascieeca https://doi.org/10.1038/srep24374 2023-05-08T13:23:00Z 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 (delta O-18) 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 delta O-18 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. Article in Journal/Newspaper Antarc* Antarctic Greenland ice core Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Antarctic Greenland Indian Hulu ENVELOPE(8.610,8.610,62.837,62.837) Scientific Reports 6 1 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Science & Technology ICE-AGE TERMINATIONS PAST 800,000 YEARS SUMMER-MONSOON CLIMATE VARIABILITY ASIAN MONSOON HULU CAVE RECORD CORE PRECIPITATION GREENLAND Science & Technology - Other Topics Multidisciplinary Sciences |
spellingShingle |
Science & Technology ICE-AGE TERMINATIONS PAST 800,000 YEARS SUMMER-MONSOON CLIMATE VARIABILITY ASIAN MONSOON HULU CAVE RECORD CORE PRECIPITATION GREENLAND Science & Technology - Other Topics Multidisciplinary Sciences Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spoetl, 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 |
topic_facet |
Science & Technology ICE-AGE TERMINATIONS PAST 800,000 YEARS SUMMER-MONSOON CLIMATE VARIABILITY ASIAN MONSOON HULU CAVE RECORD CORE PRECIPITATION GREENLAND Science & Technology - Other Topics Multidisciplinary Sciences |
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 (delta O-18) 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 delta O-18 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 |
Article in Journal/Newspaper |
author |
Kathayat, Gayatri Cheng, Hai Sinha, Ashish Spoetl, 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 Spoetl, 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 |
publishDate |
2016 |
url |
http://ir.ieecas.cn/handle/361006/5756 https://doi.org/10.1038/srep24374 |
long_lat |
ENVELOPE(8.610,8.610,62.837,62.837) |
geographic |
Antarctic Greenland Indian Hulu |
geographic_facet |
Antarctic Greenland Indian Hulu |
genre |
Antarc* Antarctic Greenland ice core |
genre_facet |
Antarc* Antarctic Greenland ice core |
op_relation |
SCIENTIFIC REPORTS http://ir.ieecas.cn/handle/361006/5756 doi:10.1038/srep24374 |
op_doi |
https://doi.org/10.1038/srep24374 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
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1768378362313572352 |