Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China
Variations in atmospheric circulation across the last deglaciation in the northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap in our understanding of Asian climate. Here we reconstruct continental air temperatures for northeast China across the la...
Published in: | Geology |
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2017
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Online Access: | https://hdl.handle.net/1983/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://research-information.bris.ac.uk/en/publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://doi.org/10.1130/G39401.1 https://research-information.bris.ac.uk/ws/files/136793193/1031.pdf http://www.scopus.com/inward/record.url?scp=85032296046&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 2024-04-28T08:10:55+00:00 Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China Zheng, Yanhong Pancost, Richard D. Liu, Xiaodong Wang, Zhangzhang Naafs, B. D.A. Xie, Xiaoxun Liu, Zhao Yu, Xuefeng Yang, Huan 2017-11-01 application/pdf https://hdl.handle.net/1983/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://research-information.bris.ac.uk/en/publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://doi.org/10.1130/G39401.1 https://research-information.bris.ac.uk/ws/files/136793193/1031.pdf http://www.scopus.com/inward/record.url?scp=85032296046&partnerID=8YFLogxK eng eng https://research-information.bris.ac.uk/en/publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 info:eu-repo/semantics/openAccess Zheng , Y , Pancost , R D , Liu , X , Wang , Z , Naafs , B D A , Xie , X , Liu , Z , Yu , X & Yang , H 2017 , ' Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China ' , Geology , vol. 45 , no. 11 , pp. 1031-1034 . https://doi.org/10.1130/G39401.1 article 2017 ftubristolcris https://doi.org/10.1130/G39401.1 2024-04-10T00:01:20Z Variations in atmospheric circulation across the last deglaciation in the northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap in our understanding of Asian climate. Here we reconstruct continental air temperatures for northeast China across the last deglaciation (past 16 k.y.), based on the distribution of bacterial branched glycerol dialkyl glycerol tetraethers in a sequence of the Hani peat (Jilin Province, northeast China). Our results indicate large (as much as 10 °C) oscillations in temperature in northeast China across the deglaciation, oscillations significantly larger than observed in other temperature records from low-latitude or same-latitude East Asia, but consistent with climate model simulations. This enhanced magnitude, as well as the timing of temperature variations, provides evidence for atmospheric teleconnections with high latitudes; in particular, we suggest that highlatitude cooling associated with Arctic ice expansion and changes in Atlantic Meridional Overturning Circulation enhanced the intensity and lowered the temperature of Eurasian mid-latitude westerlies and northwesterly winds over East Asia during the last glacial, delivering cold air masses to northeast China. During the deglaciation the westerlies and therefore delivery of cold air masses weakened, amplifying the deglacial warming in this region. We conclude that changes in North Atlantic climate had a particularly strong impact on the northernmost parts of the East Asian monsoon-influenced area. Article in Journal/Newspaper Arctic North Atlantic University of Bristol: Bristol Research Geology 45 11 1031 1034 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Variations in atmospheric circulation across the last deglaciation in the northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap in our understanding of Asian climate. Here we reconstruct continental air temperatures for northeast China across the last deglaciation (past 16 k.y.), based on the distribution of bacterial branched glycerol dialkyl glycerol tetraethers in a sequence of the Hani peat (Jilin Province, northeast China). Our results indicate large (as much as 10 °C) oscillations in temperature in northeast China across the deglaciation, oscillations significantly larger than observed in other temperature records from low-latitude or same-latitude East Asia, but consistent with climate model simulations. This enhanced magnitude, as well as the timing of temperature variations, provides evidence for atmospheric teleconnections with high latitudes; in particular, we suggest that highlatitude cooling associated with Arctic ice expansion and changes in Atlantic Meridional Overturning Circulation enhanced the intensity and lowered the temperature of Eurasian mid-latitude westerlies and northwesterly winds over East Asia during the last glacial, delivering cold air masses to northeast China. During the deglaciation the westerlies and therefore delivery of cold air masses weakened, amplifying the deglacial warming in this region. We conclude that changes in North Atlantic climate had a particularly strong impact on the northernmost parts of the East Asian monsoon-influenced area. |
format |
Article in Journal/Newspaper |
author |
Zheng, Yanhong Pancost, Richard D. Liu, Xiaodong Wang, Zhangzhang Naafs, B. D.A. Xie, Xiaoxun Liu, Zhao Yu, Xuefeng Yang, Huan |
spellingShingle |
Zheng, Yanhong Pancost, Richard D. Liu, Xiaodong Wang, Zhangzhang Naafs, B. D.A. Xie, Xiaoxun Liu, Zhao Yu, Xuefeng Yang, Huan Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
author_facet |
Zheng, Yanhong Pancost, Richard D. Liu, Xiaodong Wang, Zhangzhang Naafs, B. D.A. Xie, Xiaoxun Liu, Zhao Yu, Xuefeng Yang, Huan |
author_sort |
Zheng, Yanhong |
title |
Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
title_short |
Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
title_full |
Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
title_fullStr |
Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
title_full_unstemmed |
Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China |
title_sort |
atmospheric connections with the north atlantic enhanced the deglacial warming in northeast china |
publishDate |
2017 |
url |
https://hdl.handle.net/1983/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://research-information.bris.ac.uk/en/publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 https://doi.org/10.1130/G39401.1 https://research-information.bris.ac.uk/ws/files/136793193/1031.pdf http://www.scopus.com/inward/record.url?scp=85032296046&partnerID=8YFLogxK |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
Zheng , Y , Pancost , R D , Liu , X , Wang , Z , Naafs , B D A , Xie , X , Liu , Z , Yu , X & Yang , H 2017 , ' Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China ' , Geology , vol. 45 , no. 11 , pp. 1031-1034 . https://doi.org/10.1130/G39401.1 |
op_relation |
https://research-information.bris.ac.uk/en/publications/785f8684-52c6-4b4c-af58-b6f5f97c1461 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1130/G39401.1 |
container_title |
Geology |
container_volume |
45 |
container_issue |
11 |
container_start_page |
1031 |
op_container_end_page |
1034 |
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1797578581731180544 |