Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka
A multi-proxy (d18O, d13C and trace elements) analysis of an absolutely-dated stalagmite in northern China is conducted to reconstruct the East Asian summer monsoon (EASM) intensity and local hydroclimate conditions during the period of 53.8–47.4 ka (BP, before 1950 CE). Our d18O and d13C records, w...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2022
|
Subjects: | |
Online Access: | https://figshare.com/articles/journal_contribution/Strong_coupling_of_the_East_Asian_summer_monsoon_and_hydroclimate_footprints_during_53_47_ka/23308793 |
id |
ftunivsussexfig:oai:figshare.com:article/23308793 |
---|---|
record_format |
openpolar |
spelling |
ftunivsussexfig:oai:figshare.com:article/23308793 2023-06-18T03:41:11+02:00 Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka Wei Huang Jinguo Dong Qingfeng Shao Fucai Duan Yi Wang 2022-07-01T00:00:00Z https://figshare.com/articles/journal_contribution/Strong_coupling_of_the_East_Asian_summer_monsoon_and_hydroclimate_footprints_during_53_47_ka/23308793 unknown 10779/uos.23308793.v1 https://figshare.com/articles/journal_contribution/Strong_coupling_of_the_East_Asian_summer_monsoon_and_hydroclimate_footprints_during_53_47_ka/23308793 Copyright not evaluated Uncategorised value Text Journal contribution 2022 ftunivsussexfig 2023-06-07T23:39:08Z A multi-proxy (d18O, d13C and trace elements) analysis of an absolutely-dated stalagmite in northern China is conducted to reconstruct the East Asian summer monsoon (EASM) intensity and local hydroclimate conditions during the period of 53.8–47.4 ka (BP, before 1950 CE). Our d18O and d13C records, with 24-yr resolution, clearly register the Dansgaard-Oeschger (DO) events 14 and 13. A clear double-peak structure for DO13, as previously detected in the NGRIP ice core, is identified in our d18O and d13C records, for the first time. This strong correspondence at the finer time-scale indicates a sensitive and rapid response of the EASM system to the North Atlantic climate changes through air-sea coupling. Our d18O record shows that the EASM intensity deceased abruptly during latter stage of DO14 (51.1–50.3 ka). This abrupt change is different from other stalagmite d18O records from central and southern China. On the other hand, both the d13C and trace element records, representing local hydroclimatic changes, match well with the d18O record, reflecting an integrated EASM system, on the timescale of the DO cycles. The covariance suggests that the hydrological variation in northern China could be modulated by the movement of the large-scale EASM circulation. Further comparison displays an anti-correlated relationship between the millennial precipitation changes in northern and southeastern China during the period of 51.5–47.4 ka. This anti-correlation is analogous to the “North-South” dipole mode in observed present-day precipitation. Overall, this study advances our understanding of the spatial and temporal evolution of the EASM precipitation on the millennial timescale. Article in Journal/Newspaper ice core NGRIP North Atlantic University of Sussex: Figshare |
institution |
Open Polar |
collection |
University of Sussex: Figshare |
op_collection_id |
ftunivsussexfig |
language |
unknown |
topic |
Uncategorised value |
spellingShingle |
Uncategorised value Wei Huang Jinguo Dong Qingfeng Shao Fucai Duan Yi Wang Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
topic_facet |
Uncategorised value |
description |
A multi-proxy (d18O, d13C and trace elements) analysis of an absolutely-dated stalagmite in northern China is conducted to reconstruct the East Asian summer monsoon (EASM) intensity and local hydroclimate conditions during the period of 53.8–47.4 ka (BP, before 1950 CE). Our d18O and d13C records, with 24-yr resolution, clearly register the Dansgaard-Oeschger (DO) events 14 and 13. A clear double-peak structure for DO13, as previously detected in the NGRIP ice core, is identified in our d18O and d13C records, for the first time. This strong correspondence at the finer time-scale indicates a sensitive and rapid response of the EASM system to the North Atlantic climate changes through air-sea coupling. Our d18O record shows that the EASM intensity deceased abruptly during latter stage of DO14 (51.1–50.3 ka). This abrupt change is different from other stalagmite d18O records from central and southern China. On the other hand, both the d13C and trace element records, representing local hydroclimatic changes, match well with the d18O record, reflecting an integrated EASM system, on the timescale of the DO cycles. The covariance suggests that the hydrological variation in northern China could be modulated by the movement of the large-scale EASM circulation. Further comparison displays an anti-correlated relationship between the millennial precipitation changes in northern and southeastern China during the period of 51.5–47.4 ka. This anti-correlation is analogous to the “North-South” dipole mode in observed present-day precipitation. Overall, this study advances our understanding of the spatial and temporal evolution of the EASM precipitation on the millennial timescale. |
format |
Article in Journal/Newspaper |
author |
Wei Huang Jinguo Dong Qingfeng Shao Fucai Duan Yi Wang |
author_facet |
Wei Huang Jinguo Dong Qingfeng Shao Fucai Duan Yi Wang |
author_sort |
Wei Huang |
title |
Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
title_short |
Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
title_full |
Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
title_fullStr |
Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
title_full_unstemmed |
Strong coupling of the East Asian summer monsoon and hydroclimate footprints during 53–47 ka |
title_sort |
strong coupling of the east asian summer monsoon and hydroclimate footprints during 53–47 ka |
publishDate |
2022 |
url |
https://figshare.com/articles/journal_contribution/Strong_coupling_of_the_East_Asian_summer_monsoon_and_hydroclimate_footprints_during_53_47_ka/23308793 |
genre |
ice core NGRIP North Atlantic |
genre_facet |
ice core NGRIP North Atlantic |
op_relation |
10779/uos.23308793.v1 https://figshare.com/articles/journal_contribution/Strong_coupling_of_the_East_Asian_summer_monsoon_and_hydroclimate_footprints_during_53_47_ka/23308793 |
op_rights |
Copyright not evaluated |
_version_ |
1769006645715664896 |