Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau
The Asian summer monsoon and the mid-latitude Westerlies are major atmospheric circulation systems which influence the climate of the Tibetan Plateau (TP), and hence the water resources, ecology, and socioeconomic well-being of the region. The interplay between the monsoon and the Westerlies has bee...
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Online Access: | http://dx.doi.org/10.1177/0959683620913930 http://journals.sagepub.com/doi/pdf/10.1177/0959683620913930 http://journals.sagepub.com/doi/full-xml/10.1177/0959683620913930 |
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crsagepubl:10.1177/0959683620913930 2024-05-19T07:45:16+00:00 Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau Sun, Zhe Yuan, Kan Hou, Xiaohuan Ji, Kejia Li, Can-Ge Wang, Mingda Hou, Juzhi National Natural Science Foundation of China National Key Research & Development Program of China 2020 http://dx.doi.org/10.1177/0959683620913930 http://journals.sagepub.com/doi/pdf/10.1177/0959683620913930 http://journals.sagepub.com/doi/full-xml/10.1177/0959683620913930 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 30, issue 8, page 1163-1173 ISSN 0959-6836 1477-0911 journal-article 2020 crsagepubl https://doi.org/10.1177/0959683620913930 2024-05-02T09:39:50Z The Asian summer monsoon and the mid-latitude Westerlies are major atmospheric circulation systems which influence the climate of the Tibetan Plateau (TP), and hence the water resources, ecology, and socioeconomic well-being of the region. The interplay between the monsoon and the Westerlies has been investigated on glacial–interglacial, millennial, and decadal scales. However, due to the scarcity of high-resolution climate records from the TP, there is a lack of information on the centennial scale, which is more closely related to the development of civilization. Here we present a decadal-resolution precipitation record covering the past ~3600 years from Ngamring Co in the southern TP. The record suggests the gradual weakening of the Indian Summer Monsoon (ISM) with multiple centennial-scale fluctuations, which are synchronous with temperature changes. Precipitation was relatively high during the Medieval Warm Period (MWP) and low during the Little Ice Age (LIA). A wet Roman Warm Period (RWP) and an abrupt dry spell at 2.8 ka are also identified. Comparisons suggest that an intensified Westerlies penetrated the southern TP during dry intervals, such as during the 2.8 ka event, ~1700–1450 cal yr BP, and the LIA; whereas an intensified monsoon prevailed during warm periods such as the MWP. The centennial-scale oscillations of precipitation in the southern TP during the late Holocene suggest the role of the Westerlies in regulating ISM moisture delivery to the region, which likely resulted from variations in the surface temperature of the North Atlantic together with solar activity. Article in Journal/Newspaper North Atlantic SAGE Publications The Holocene 30 8 1163 1173 |
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SAGE Publications |
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English |
description |
The Asian summer monsoon and the mid-latitude Westerlies are major atmospheric circulation systems which influence the climate of the Tibetan Plateau (TP), and hence the water resources, ecology, and socioeconomic well-being of the region. The interplay between the monsoon and the Westerlies has been investigated on glacial–interglacial, millennial, and decadal scales. However, due to the scarcity of high-resolution climate records from the TP, there is a lack of information on the centennial scale, which is more closely related to the development of civilization. Here we present a decadal-resolution precipitation record covering the past ~3600 years from Ngamring Co in the southern TP. The record suggests the gradual weakening of the Indian Summer Monsoon (ISM) with multiple centennial-scale fluctuations, which are synchronous with temperature changes. Precipitation was relatively high during the Medieval Warm Period (MWP) and low during the Little Ice Age (LIA). A wet Roman Warm Period (RWP) and an abrupt dry spell at 2.8 ka are also identified. Comparisons suggest that an intensified Westerlies penetrated the southern TP during dry intervals, such as during the 2.8 ka event, ~1700–1450 cal yr BP, and the LIA; whereas an intensified monsoon prevailed during warm periods such as the MWP. The centennial-scale oscillations of precipitation in the southern TP during the late Holocene suggest the role of the Westerlies in regulating ISM moisture delivery to the region, which likely resulted from variations in the surface temperature of the North Atlantic together with solar activity. |
author2 |
National Natural Science Foundation of China National Key Research & Development Program of China |
format |
Article in Journal/Newspaper |
author |
Sun, Zhe Yuan, Kan Hou, Xiaohuan Ji, Kejia Li, Can-Ge Wang, Mingda Hou, Juzhi |
spellingShingle |
Sun, Zhe Yuan, Kan Hou, Xiaohuan Ji, Kejia Li, Can-Ge Wang, Mingda Hou, Juzhi Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
author_facet |
Sun, Zhe Yuan, Kan Hou, Xiaohuan Ji, Kejia Li, Can-Ge Wang, Mingda Hou, Juzhi |
author_sort |
Sun, Zhe |
title |
Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
title_short |
Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
title_full |
Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
title_fullStr |
Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
title_full_unstemmed |
Centennial-scale interplay between the Indian Summer Monsoon and the Westerlies revealed from Ngamring Co, southern Tibetan Plateau |
title_sort |
centennial-scale interplay between the indian summer monsoon and the westerlies revealed from ngamring co, southern tibetan plateau |
publisher |
SAGE Publications |
publishDate |
2020 |
url |
http://dx.doi.org/10.1177/0959683620913930 http://journals.sagepub.com/doi/pdf/10.1177/0959683620913930 http://journals.sagepub.com/doi/full-xml/10.1177/0959683620913930 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
The Holocene volume 30, issue 8, page 1163-1173 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683620913930 |
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The Holocene |
container_volume |
30 |
container_issue |
8 |
container_start_page |
1163 |
op_container_end_page |
1173 |
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1799485260166070272 |