Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM
The Tibetan Plateau (TP) is primarily influenced by the northern hemispheric middle latitude Westerlies and the Indian summer monsoon (ISM). The extent, long-distance effects and potential long-term changes of these two atmospheric circulations are not yet fully understood. Here, we analyse modern a...
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ftpubmed:oai:pubmedcentral.nih.gov:4543934 2023-05-15T17:33:31+02:00 Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM Zhu, Liping Lü, Xinmiao Wang, Junbo Peng, Ping Kasper, Thomas Daut, Gerhard Haberzettl, Torsten Frenzel, Peter Li, Quan Yang, Ruimin Schwalb, Antje Mäusbacher, Roland 2015-08-21 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4543934/ http://www.ncbi.nlm.nih.gov/pubmed/26294226 https://doi.org/10.1038/srep13318 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4543934/ http://www.ncbi.nlm.nih.gov/pubmed/26294226 http://dx.doi.org/10.1038/srep13318 Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2015 ftpubmed https://doi.org/10.1038/srep13318 2015-09-06T00:21:28Z The Tibetan Plateau (TP) is primarily influenced by the northern hemispheric middle latitude Westerlies and the Indian summer monsoon (ISM). The extent, long-distance effects and potential long-term changes of these two atmospheric circulations are not yet fully understood. Here, we analyse modern airborne pollen in a transition zone of seasonally alternating dominance of the Westerlies and the ISM to develop a pollen discrimination index (PDI) that allows us to distinguish between the intensities of the two circulation systems. This index is applied to interpret a continuous lacustrine sedimentary record from Lake Nam Co covering the past 24 cal kyr BP to investigate long-term variations in the atmospheric circulation systems. Climatic variations on the central TP widely correspond to those of the North Atlantic (NA) realm, but are controlled through different mechanisms resulting from the changing climatic conditions since the Last Glacial Maximum (LGM). During the LGM, until 16.5 cal kyr BP, the TP was dominated by the Westerlies. After 16.5 cal kyr BP, the climatic conditions were mainly controlled by the ISM. From 11.6 to 9 cal kyr BP, the TP was exposed to enhanced solar radiation at the low latitudes, resulting in greater water availability. Text North Atlantic PubMed Central (PMC) Indian Scientific Reports 5 1 |
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Article Zhu, Liping Lü, Xinmiao Wang, Junbo Peng, Ping Kasper, Thomas Daut, Gerhard Haberzettl, Torsten Frenzel, Peter Li, Quan Yang, Ruimin Schwalb, Antje Mäusbacher, Roland Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
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The Tibetan Plateau (TP) is primarily influenced by the northern hemispheric middle latitude Westerlies and the Indian summer monsoon (ISM). The extent, long-distance effects and potential long-term changes of these two atmospheric circulations are not yet fully understood. Here, we analyse modern airborne pollen in a transition zone of seasonally alternating dominance of the Westerlies and the ISM to develop a pollen discrimination index (PDI) that allows us to distinguish between the intensities of the two circulation systems. This index is applied to interpret a continuous lacustrine sedimentary record from Lake Nam Co covering the past 24 cal kyr BP to investigate long-term variations in the atmospheric circulation systems. Climatic variations on the central TP widely correspond to those of the North Atlantic (NA) realm, but are controlled through different mechanisms resulting from the changing climatic conditions since the Last Glacial Maximum (LGM). During the LGM, until 16.5 cal kyr BP, the TP was dominated by the Westerlies. After 16.5 cal kyr BP, the climatic conditions were mainly controlled by the ISM. From 11.6 to 9 cal kyr BP, the TP was exposed to enhanced solar radiation at the low latitudes, resulting in greater water availability. |
format |
Text |
author |
Zhu, Liping Lü, Xinmiao Wang, Junbo Peng, Ping Kasper, Thomas Daut, Gerhard Haberzettl, Torsten Frenzel, Peter Li, Quan Yang, Ruimin Schwalb, Antje Mäusbacher, Roland |
author_facet |
Zhu, Liping Lü, Xinmiao Wang, Junbo Peng, Ping Kasper, Thomas Daut, Gerhard Haberzettl, Torsten Frenzel, Peter Li, Quan Yang, Ruimin Schwalb, Antje Mäusbacher, Roland |
author_sort |
Zhu, Liping |
title |
Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
title_short |
Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
title_full |
Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
title_fullStr |
Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
title_full_unstemmed |
Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM |
title_sort |
climate change on the tibetan plateau in response to shifting atmospheric circulation since the lgm |
publisher |
Nature Publishing Group |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4543934/ http://www.ncbi.nlm.nih.gov/pubmed/26294226 https://doi.org/10.1038/srep13318 |
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Indian |
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Indian |
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North Atlantic |
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North Atlantic |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4543934/ http://www.ncbi.nlm.nih.gov/pubmed/26294226 http://dx.doi.org/10.1038/srep13318 |
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Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep13318 |
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