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...
Published in: | Earth and Planetary Science Letters |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/427496/ https://eprints.soton.ac.uk/427496/1/Zhang_etal_EPSL_accepted2018.pdf |
id |
ftsouthampton:oai:eprints.soton.ac.uk:427496 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:427496 2023-07-30T04:05:06+02:00 Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation Zhang, Enlou Chang, Jie Schulmeister, James Langdon, Peter Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji 2019-03-01 text https://eprints.soton.ac.uk/427496/ https://eprints.soton.ac.uk/427496/1/Zhang_etal_EPSL_accepted2018.pdf en English eng https://eprints.soton.ac.uk/427496/1/Zhang_etal_EPSL_accepted2018.pdf Zhang, Enlou, Chang, Jie, Schulmeister, James, Langdon, Peter, Sun, Weiwei, Cao, Yanmin, Yang, Xiangdong and Shen, Ji (2019) Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation. Earth and Planetary Science Letters, 509, 78-87. (doi:10.1016/j.epsl.2018.12.024 <http://dx.doi.org/10.1016/j.epsl.2018.12.024>). cc_by_nc_nd_4 Article PeerReviewed 2019 ftsouthampton https://doi.org/10.1016/j.epsl.2018.12.024 2023-07-09T22:27:15Z 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 University of Southampton: e-Prints Soton Southern Ocean Indian Earth and Planetary Science Letters 509 78 87 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
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 Schulmeister, James Langdon, Peter Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji |
spellingShingle |
Zhang, Enlou Chang, Jie Schulmeister, James Langdon, Peter Sun, Weiwei Cao, Yanmin Yang, Xiangdong Shen, Ji Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation |
author_facet |
Zhang, Enlou Chang, Jie Schulmeister, James Langdon, Peter 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 |
publishDate |
2019 |
url |
https://eprints.soton.ac.uk/427496/ https://eprints.soton.ac.uk/427496/1/Zhang_etal_EPSL_accepted2018.pdf |
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 |
https://eprints.soton.ac.uk/427496/1/Zhang_etal_EPSL_accepted2018.pdf Zhang, Enlou, Chang, Jie, Schulmeister, James, Langdon, Peter, Sun, Weiwei, Cao, Yanmin, Yang, Xiangdong and Shen, Ji (2019) Summer temperature fluctuations in Southwestern China during the end of the LGM and the last deglaciation. Earth and Planetary Science Letters, 509, 78-87. (doi:10.1016/j.epsl.2018.12.024 <http://dx.doi.org/10.1016/j.epsl.2018.12.024>). |
op_rights |
cc_by_nc_nd_4 |
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_ |
1772816812871778304 |