The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O
The difficulty in constraining the large-scale Asian summer monsoon (ASM) variability in the Chinese monsoon region (CMR) during glacial Termination II lies in our limited knowledge of the western part, primarily due to sparse paleoclimate records. To get a better picture of the ASM during Terminati...
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Online Access: | https://hdl.handle.net/10356/174261 https://doi.org/10.1016/j.quascirev.2023.108193 |
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ftnanyangtu:oai:dr.ntu.edu.sg:10356/174261 2024-04-21T08:08:11+00:00 The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O Jia, Wei Zhang, Pingzhong Wang, Xianfeng He, Shaoneng Liu, Guangxin Shi, Hongyu Cai, Binggui Yuan, Shufang Zhang, Wenfei Deng, Ruitao Zhang, Leilei Gao, Tao Sun, Qibin Cheng, Hai Ning, Youfeng Edwards, R. Lawrence Asian School of the Environment Earth Observatory of Singapore 2023 application/pdf https://hdl.handle.net/10356/174261 https://doi.org/10.1016/j.quascirev.2023.108193 en eng MOE2019-T2-1-174 Quaternary Science Reviews Jia, W., Zhang, P., Wang, X., He, S., Liu, G., Shi, H., Cai, B., Yuan, S., Zhang, W., Deng, R., Zhang, L., Gao, T., Sun, Q., Cheng, H., Ning, Y. & Edwards, R. L. (2023). The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O. Quaternary Science Reviews, 313, 108193-. https://dx.doi.org/10.1016/j.quascirev.2023.108193 0277-3791 https://hdl.handle.net/10356/174261 doi:10.1016/j.quascirev.2023.108193 2-s2.0-85163145887 313 108193 © 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Earth and Environmental Sciences Western China Asian summer monsoon Journal Article 2023 ftnanyangtu https://doi.org/10.1016/j.quascirev.2023.108193 2024-03-27T15:29:57Z The difficulty in constraining the large-scale Asian summer monsoon (ASM) variability in the Chinese monsoon region (CMR) during glacial Termination II lies in our limited knowledge of the western part, primarily due to sparse paleoclimate records. To get a better picture of the ASM during Termination II, we examined a precisely dated stalagmite δ18O record between 133.1 and 127.0 kyr B.P. from Wanxiang Cave located at the ASM's northern edge in western China. In combination with published δ18O data from this cave, we have identified the ‘Weak Monsoon Interval’ (WMI) in the Wanxiang δ18O record and confirmed that the Heinrich 11 cold event in the North Atlantic caused the weakened ASM over the CMR via reorganization of the large-scale ocean-atmospheric circulation. However, the post-WMI change in δ18O is gradual, in contrast with the abrupt shift shown in the other cave records from southern and northeastern China. The rapid northward migration of the westerly jet relative to the Qinghai-Tibet Plateau is probably responsible for this discrepancy. This northward-positioned westerly jet prevented the more 18O-depleted moisture from the Indian Ocean from reaching the study site. Simultaneously, it facilitated the earlier northward movement of the East Asian summer monsoon (EASM) rainband that carries positive precipitation δ18O to obscure the abrupt decrease in our δ18O record. After the onset of the last interglacial, no obvious Younger Dryas (YD)-like event was recorded in Wanxiang Cave. This result is consistent with most stalagmite δ18O records in the CMR and further suggests a minimal impact of the YD-like event on ASM variabilities. The relatively large amplitude of δ18O variations observed in Wanxiang Cave between the late penultimate glacial and the last interglacial corresponds to a dominant control of the Indian summer monsoon (ISM), whereas smaller δ18O amplitudes were recorded in cave sites mainly under the influence of both ISM and EASM. Therefore, we posit that the heterogeneity of the hydroclimate in ... Article in Journal/Newspaper North Atlantic DR-NTU (Digital Repository at Nanyang Technological University, Singapore) Quaternary Science Reviews 313 108193 |
institution |
Open Polar |
collection |
DR-NTU (Digital Repository at Nanyang Technological University, Singapore) |
op_collection_id |
ftnanyangtu |
language |
English |
topic |
Earth and Environmental Sciences Western China Asian summer monsoon |
spellingShingle |
Earth and Environmental Sciences Western China Asian summer monsoon Jia, Wei Zhang, Pingzhong Wang, Xianfeng He, Shaoneng Liu, Guangxin Shi, Hongyu Cai, Binggui Yuan, Shufang Zhang, Wenfei Deng, Ruitao Zhang, Leilei Gao, Tao Sun, Qibin Cheng, Hai Ning, Youfeng Edwards, R. Lawrence The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
topic_facet |
Earth and Environmental Sciences Western China Asian summer monsoon |
description |
The difficulty in constraining the large-scale Asian summer monsoon (ASM) variability in the Chinese monsoon region (CMR) during glacial Termination II lies in our limited knowledge of the western part, primarily due to sparse paleoclimate records. To get a better picture of the ASM during Termination II, we examined a precisely dated stalagmite δ18O record between 133.1 and 127.0 kyr B.P. from Wanxiang Cave located at the ASM's northern edge in western China. In combination with published δ18O data from this cave, we have identified the ‘Weak Monsoon Interval’ (WMI) in the Wanxiang δ18O record and confirmed that the Heinrich 11 cold event in the North Atlantic caused the weakened ASM over the CMR via reorganization of the large-scale ocean-atmospheric circulation. However, the post-WMI change in δ18O is gradual, in contrast with the abrupt shift shown in the other cave records from southern and northeastern China. The rapid northward migration of the westerly jet relative to the Qinghai-Tibet Plateau is probably responsible for this discrepancy. This northward-positioned westerly jet prevented the more 18O-depleted moisture from the Indian Ocean from reaching the study site. Simultaneously, it facilitated the earlier northward movement of the East Asian summer monsoon (EASM) rainband that carries positive precipitation δ18O to obscure the abrupt decrease in our δ18O record. After the onset of the last interglacial, no obvious Younger Dryas (YD)-like event was recorded in Wanxiang Cave. This result is consistent with most stalagmite δ18O records in the CMR and further suggests a minimal impact of the YD-like event on ASM variabilities. The relatively large amplitude of δ18O variations observed in Wanxiang Cave between the late penultimate glacial and the last interglacial corresponds to a dominant control of the Indian summer monsoon (ISM), whereas smaller δ18O amplitudes were recorded in cave sites mainly under the influence of both ISM and EASM. Therefore, we posit that the heterogeneity of the hydroclimate in ... |
author2 |
Asian School of the Environment Earth Observatory of Singapore |
format |
Article in Journal/Newspaper |
author |
Jia, Wei Zhang, Pingzhong Wang, Xianfeng He, Shaoneng Liu, Guangxin Shi, Hongyu Cai, Binggui Yuan, Shufang Zhang, Wenfei Deng, Ruitao Zhang, Leilei Gao, Tao Sun, Qibin Cheng, Hai Ning, Youfeng Edwards, R. Lawrence |
author_facet |
Jia, Wei Zhang, Pingzhong Wang, Xianfeng He, Shaoneng Liu, Guangxin Shi, Hongyu Cai, Binggui Yuan, Shufang Zhang, Wenfei Deng, Ruitao Zhang, Leilei Gao, Tao Sun, Qibin Cheng, Hai Ning, Youfeng Edwards, R. Lawrence |
author_sort |
Jia, Wei |
title |
The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
title_short |
The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
title_full |
The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
title_fullStr |
The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
title_full_unstemmed |
The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O |
title_sort |
spatio-temporal pattern of asian summer monsoon during glacial termination ii recorded by chinese stalagmite δ18o |
publishDate |
2023 |
url |
https://hdl.handle.net/10356/174261 https://doi.org/10.1016/j.quascirev.2023.108193 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
MOE2019-T2-1-174 Quaternary Science Reviews Jia, W., Zhang, P., Wang, X., He, S., Liu, G., Shi, H., Cai, B., Yuan, S., Zhang, W., Deng, R., Zhang, L., Gao, T., Sun, Q., Cheng, H., Ning, Y. & Edwards, R. L. (2023). The spatio-temporal pattern of Asian summer monsoon during glacial Termination II recorded by Chinese stalagmite δ18O. Quaternary Science Reviews, 313, 108193-. https://dx.doi.org/10.1016/j.quascirev.2023.108193 0277-3791 https://hdl.handle.net/10356/174261 doi:10.1016/j.quascirev.2023.108193 2-s2.0-85163145887 313 108193 |
op_rights |
© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
op_doi |
https://doi.org/10.1016/j.quascirev.2023.108193 |
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Quaternary Science Reviews |
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313 |
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108193 |
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