Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation
We present a sub-centennial resolution summer temperature record from the SE Tibetan Plateau (Tiancai Lake, SW China, 3900 m a.s.l.) derived from a chironomid stratigraphy covering the last c.19.5 ka. The record highlights the interaction between tropical and high-latitude climate forcing through th...
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:e9f6f09 2023-05-15T17:25:25+02:00 Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation Zhang, Enlou Chang, Jie Shulmeister, James Langdon, Pete Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji 2019-03-01 https://espace.library.uq.edu.au/view/UQ:e9f6f09 eng eng Elsevier BV doi:10.1016/j.epsl.2018.12.024 issn:0012-821X orcid:0000-0001-9684-6550 orcid:0000-0001-5863-9462 2016YFA0600502 41272380 41572337 Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics 1901 Earth and Planetary Sciences (miscellaneous) 1906 Geochemistry and Petrology 1908 Geophysics 1912 Space and Planetary Science Journal Article 2019 ftunivqespace https://doi.org/10.1016/j.epsl.2018.12.024 2020-12-08T05:23:15Z We present a sub-centennial resolution summer temperature record from the SE Tibetan Plateau (Tiancai Lake, SW China, 3900 m a.s.l.) derived from a chironomid stratigraphy covering the last c.19.5 ka. The record highlights the interaction between tropical and high-latitude climate forcing through the changes in atmospheric circulation during the last deglaciation. The scale of the last glacial maximum (LGM) cooling is consistent with other tropical mountain regions at c.5 °C and a rapid recovery of temperatures at 19.0 ka is related to changes in adiabatic lapse rates at the end of the glaciation. The overall pattern of change shows that North Atlantic deglaciation climate events (the Heinrich 1 and Younger Dryas cooling events and the Bølling–Allerød warm period) are all recorded, but the influence of the events decline as the deglaciation progresses. We relate these patterns to North Atlantic Deep water ventilating the Southern Ocean and to the consequent movements of the Intertropical Convergence Zone (ITCZ) in the Indian Ocean Basin as transmitted through changes in the southern mid-latitude circulation. Article in Journal/Newspaper North Atlantic Deep Water North Atlantic Southern Ocean The University of Queensland: UQ eSpace Southern Ocean Indian Earth and Planetary Science Letters 509 78 87 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics 1901 Earth and Planetary Sciences (miscellaneous) 1906 Geochemistry and Petrology 1908 Geophysics 1912 Space and Planetary Science |
spellingShingle |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics 1901 Earth and Planetary Sciences (miscellaneous) 1906 Geochemistry and Petrology 1908 Geophysics 1912 Space and Planetary Science Zhang, Enlou Chang, Jie Shulmeister, James Langdon, Pete Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
topic_facet |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics 1901 Earth and Planetary Sciences (miscellaneous) 1906 Geochemistry and Petrology 1908 Geophysics 1912 Space and Planetary Science |
description |
We present a sub-centennial resolution summer temperature record from the SE Tibetan Plateau (Tiancai Lake, SW China, 3900 m a.s.l.) derived from a chironomid stratigraphy covering the last c.19.5 ka. The record highlights the interaction between tropical and high-latitude climate forcing through the changes in atmospheric circulation during the last deglaciation. The scale of the last glacial maximum (LGM) cooling is consistent with other tropical mountain regions at c.5 °C and a rapid recovery of temperatures at 19.0 ka is related to changes in adiabatic lapse rates at the end of the glaciation. The overall pattern of change shows that North Atlantic deglaciation climate events (the Heinrich 1 and Younger Dryas cooling events and the Bølling–Allerød warm period) are all recorded, but the influence of the events decline as the deglaciation progresses. We relate these patterns to North Atlantic Deep water ventilating the Southern Ocean and to the consequent movements of the Intertropical Convergence Zone (ITCZ) in the Indian Ocean Basin as transmitted through changes in the southern mid-latitude circulation. |
format |
Article in Journal/Newspaper |
author |
Zhang, Enlou Chang, Jie Shulmeister, James Langdon, Pete Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji |
author_facet |
Zhang, Enlou Chang, Jie Shulmeister, James Langdon, Pete Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji |
author_sort |
Zhang, Enlou |
title |
Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
title_short |
Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
title_full |
Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
title_fullStr |
Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
title_full_unstemmed |
Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
title_sort |
summer temperature fluctuations in southwestern china during the end of the lgm and the last deglaciation |
publisher |
Elsevier BV |
publishDate |
2019 |
url |
https://espace.library.uq.edu.au/view/UQ:e9f6f09 |
geographic |
Southern Ocean Indian |
geographic_facet |
Southern Ocean Indian |
genre |
North Atlantic Deep Water North Atlantic Southern Ocean |
genre_facet |
North Atlantic Deep Water North Atlantic Southern Ocean |
op_relation |
doi:10.1016/j.epsl.2018.12.024 issn:0012-821X orcid:0000-0001-9684-6550 orcid:0000-0001-5863-9462 2016YFA0600502 41272380 41572337 |
op_doi |
https://doi.org/10.1016/j.epsl.2018.12.024 |
container_title |
Earth and Planetary Science Letters |
container_volume |
509 |
container_start_page |
78 |
op_container_end_page |
87 |
_version_ |
1766116846393622528 |