Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ...
During glacial terminations, massive iceberg discharges and meltwater pulses in the North Atlantic triggered a shutdown of the Atlantic Meridional Overturning Circulation (AMOC). Speleothem calcium carbonate oxygen isotope records (δ18OCc) indicate that the collapse of the AMOC caused dramatic chang...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000519155 http://hdl.handle.net/20.500.11850/519155 |
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ftdatacite:10.3929/ethz-b-000519155 2024-04-28T08:29:56+00:00 Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... Wassenburg, Jasper A. Vonhof, Hubert B. Cheng, Hai Martínez-García, Alfredo Ebner, Pia-Rebecca Li, Xianglei Zhang, Haiwei Sha, Lijuan Tian, Ye Edwards, R. Lawrence Fiebig, Jens Haug, Gerald H. 2021 application/pdf https://dx.doi.org/10.3929/ethz-b-000519155 http://hdl.handle.net/20.500.11850/519155 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 article-journal Text ScholarlyArticle Journal Article 2021 ftdatacite https://doi.org/10.3929/ethz-b-000519155 2024-04-02T12:34:54Z During glacial terminations, massive iceberg discharges and meltwater pulses in the North Atlantic triggered a shutdown of the Atlantic Meridional Overturning Circulation (AMOC). Speleothem calcium carbonate oxygen isotope records (δ18OCc) indicate that the collapse of the AMOC caused dramatic changes in the distribution and variability of the East Asian and Indian monsoon rainfall. However, the mechanisms linking changes in the intensity of the AMOC and Asian monsoon δ18OCc are not fully understood. Part of the challenge arises from the fact that speleothem δ18OCc depends on not only the δ18O of precipitation but also temperature and kinetic isotope effects. Here we quantitatively deconvolve these parameters affecting δ18OCc by applying three geochemical techniques in speleothems covering the penultimate glacial termination. Our data suggest that the weakening of the AMOC during meltwater pulse 2A caused substantial cooling in East Asia and a shortening of the summer monsoon season, whereas the collapse of ... : Nature Geoscience, 14 (12) ... Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
description |
During glacial terminations, massive iceberg discharges and meltwater pulses in the North Atlantic triggered a shutdown of the Atlantic Meridional Overturning Circulation (AMOC). Speleothem calcium carbonate oxygen isotope records (δ18OCc) indicate that the collapse of the AMOC caused dramatic changes in the distribution and variability of the East Asian and Indian monsoon rainfall. However, the mechanisms linking changes in the intensity of the AMOC and Asian monsoon δ18OCc are not fully understood. Part of the challenge arises from the fact that speleothem δ18OCc depends on not only the δ18O of precipitation but also temperature and kinetic isotope effects. Here we quantitatively deconvolve these parameters affecting δ18OCc by applying three geochemical techniques in speleothems covering the penultimate glacial termination. Our data suggest that the weakening of the AMOC during meltwater pulse 2A caused substantial cooling in East Asia and a shortening of the summer monsoon season, whereas the collapse of ... : Nature Geoscience, 14 (12) ... |
format |
Article in Journal/Newspaper |
author |
Wassenburg, Jasper A. Vonhof, Hubert B. Cheng, Hai Martínez-García, Alfredo Ebner, Pia-Rebecca Li, Xianglei Zhang, Haiwei Sha, Lijuan Tian, Ye Edwards, R. Lawrence Fiebig, Jens Haug, Gerald H. |
spellingShingle |
Wassenburg, Jasper A. Vonhof, Hubert B. Cheng, Hai Martínez-García, Alfredo Ebner, Pia-Rebecca Li, Xianglei Zhang, Haiwei Sha, Lijuan Tian, Ye Edwards, R. Lawrence Fiebig, Jens Haug, Gerald H. Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
author_facet |
Wassenburg, Jasper A. Vonhof, Hubert B. Cheng, Hai Martínez-García, Alfredo Ebner, Pia-Rebecca Li, Xianglei Zhang, Haiwei Sha, Lijuan Tian, Ye Edwards, R. Lawrence Fiebig, Jens Haug, Gerald H. |
author_sort |
Wassenburg, Jasper A. |
title |
Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
title_short |
Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
title_full |
Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
title_fullStr |
Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
title_full_unstemmed |
Penultimate deglaciation Asian monsoon response to North Atlantic circulation collapse ... |
title_sort |
penultimate deglaciation asian monsoon response to north atlantic circulation collapse ... |
publisher |
ETH Zurich |
publishDate |
2021 |
url |
https://dx.doi.org/10.3929/ethz-b-000519155 http://hdl.handle.net/20.500.11850/519155 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000519155 |
_version_ |
1797587971247964160 |