A climate threshold at the eastern edge of the Tibetan plateau

Xiuju Liu, Steven M. Colman, Erik T. Brown, Zhisheng An, Weijian Zhou, A. J Timothy Jull, Yongsong Huang, Peng Cheng, Weiguo Liu, Hai Xu

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Proxy records of summer monsoon moisture at Lake Qinghai on the northeastern Tibetan Plateau reveal a late Quaternary climate history that is subtly different from that of speleothems from southern and eastern China. Total organic carbon and authigenic carbonate in two independently analyzed and dated cores indicate (1) relative stability and aridity during the glacial interval, (2) small variations during the Bølling-Allerød and the Younger Dryas intervals, (3) comparatively abrupt change at the late Pleistocene/Holocene transition, and (4) relatively high variability during a wet early Holocene. Taken together, the data suggest that a climate threshold exists for penetration of Asian monsoon rainfall onto the Tibetan Plateau, a threshold that was crossed at the beginning of the Holocene. Conceptually, the threshold simply may be related to the topographic barrier that the eastern margin of the Tibetan Plateau presents to the landward penetration of the monsoon, or it may be related to nonlinearities in the climate system itself, such as sudden shifts in the configuration of the Westerly jet stream. Different mechanisms for producing a threshold are not mutually exclusive and may have combined to affect the dynamics of the Asian monsoon. In any case, the threshold is related to the presence of the Tibetan Plateau, which has a profound influence on the Asia monsoon system. Key Points Proxy records at Lake Qinghai reveal a different climate history A climate threshold exists for penetration of Asian monsoon rainfall The threshold is related to the presence of the Tibetan Plateau

Original languageEnglish (US)
Pages (from-to)5598-5604
Number of pages7
JournalGeophysical Research Letters
Volume41
Issue number15
DOIs
StatePublished - Aug 16 2014

Fingerprint

monsoons
climate
plateaus
plateau
monsoon
thresholds
penetration
Holocene
lakes
barriers (landforms)
histories
intervals
rainfall
jet stream
speleothem
lake
Younger Dryas
aridity
history
westerly

Keywords

  • Asian Monsoon
  • Lake Qinghai

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Geophysics

Cite this

Liu, X., Colman, S. M., Brown, E. T., An, Z., Zhou, W., Jull, A. J. T., ... Xu, H. (2014). A climate threshold at the eastern edge of the Tibetan plateau. Geophysical Research Letters, 41(15), 5598-5604. https://doi.org/10.1002/2014GL060833

A climate threshold at the eastern edge of the Tibetan plateau. / Liu, Xiuju; Colman, Steven M.; Brown, Erik T.; An, Zhisheng; Zhou, Weijian; Jull, A. J Timothy; Huang, Yongsong; Cheng, Peng; Liu, Weiguo; Xu, Hai.

In: Geophysical Research Letters, Vol. 41, No. 15, 16.08.2014, p. 5598-5604.

Research output: Contribution to journalArticle

Liu, X, Colman, SM, Brown, ET, An, Z, Zhou, W, Jull, AJT, Huang, Y, Cheng, P, Liu, W & Xu, H 2014, 'A climate threshold at the eastern edge of the Tibetan plateau', Geophysical Research Letters, vol. 41, no. 15, pp. 5598-5604. https://doi.org/10.1002/2014GL060833
Liu, Xiuju ; Colman, Steven M. ; Brown, Erik T. ; An, Zhisheng ; Zhou, Weijian ; Jull, A. J Timothy ; Huang, Yongsong ; Cheng, Peng ; Liu, Weiguo ; Xu, Hai. / A climate threshold at the eastern edge of the Tibetan plateau. In: Geophysical Research Letters. 2014 ; Vol. 41, No. 15. pp. 5598-5604.
@article{78d7fd6c9cc84671bc2ca162cb9e2ac4,
title = "A climate threshold at the eastern edge of the Tibetan plateau",
abstract = "Proxy records of summer monsoon moisture at Lake Qinghai on the northeastern Tibetan Plateau reveal a late Quaternary climate history that is subtly different from that of speleothems from southern and eastern China. Total organic carbon and authigenic carbonate in two independently analyzed and dated cores indicate (1) relative stability and aridity during the glacial interval, (2) small variations during the B{\o}lling-Aller{\o}d and the Younger Dryas intervals, (3) comparatively abrupt change at the late Pleistocene/Holocene transition, and (4) relatively high variability during a wet early Holocene. Taken together, the data suggest that a climate threshold exists for penetration of Asian monsoon rainfall onto the Tibetan Plateau, a threshold that was crossed at the beginning of the Holocene. Conceptually, the threshold simply may be related to the topographic barrier that the eastern margin of the Tibetan Plateau presents to the landward penetration of the monsoon, or it may be related to nonlinearities in the climate system itself, such as sudden shifts in the configuration of the Westerly jet stream. Different mechanisms for producing a threshold are not mutually exclusive and may have combined to affect the dynamics of the Asian monsoon. In any case, the threshold is related to the presence of the Tibetan Plateau, which has a profound influence on the Asia monsoon system. Key Points Proxy records at Lake Qinghai reveal a different climate history A climate threshold exists for penetration of Asian monsoon rainfall The threshold is related to the presence of the Tibetan Plateau",
keywords = "Asian Monsoon, Lake Qinghai",
author = "Xiuju Liu and Colman, {Steven M.} and Brown, {Erik T.} and Zhisheng An and Weijian Zhou and Jull, {A. J Timothy} and Yongsong Huang and Peng Cheng and Weiguo Liu and Hai Xu",
year = "2014",
month = "8",
day = "16",
doi = "10.1002/2014GL060833",
language = "English (US)",
volume = "41",
pages = "5598--5604",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "15",

}

TY - JOUR

T1 - A climate threshold at the eastern edge of the Tibetan plateau

AU - Liu, Xiuju

AU - Colman, Steven M.

AU - Brown, Erik T.

AU - An, Zhisheng

AU - Zhou, Weijian

AU - Jull, A. J Timothy

AU - Huang, Yongsong

AU - Cheng, Peng

AU - Liu, Weiguo

AU - Xu, Hai

PY - 2014/8/16

Y1 - 2014/8/16

N2 - Proxy records of summer monsoon moisture at Lake Qinghai on the northeastern Tibetan Plateau reveal a late Quaternary climate history that is subtly different from that of speleothems from southern and eastern China. Total organic carbon and authigenic carbonate in two independently analyzed and dated cores indicate (1) relative stability and aridity during the glacial interval, (2) small variations during the Bølling-Allerød and the Younger Dryas intervals, (3) comparatively abrupt change at the late Pleistocene/Holocene transition, and (4) relatively high variability during a wet early Holocene. Taken together, the data suggest that a climate threshold exists for penetration of Asian monsoon rainfall onto the Tibetan Plateau, a threshold that was crossed at the beginning of the Holocene. Conceptually, the threshold simply may be related to the topographic barrier that the eastern margin of the Tibetan Plateau presents to the landward penetration of the monsoon, or it may be related to nonlinearities in the climate system itself, such as sudden shifts in the configuration of the Westerly jet stream. Different mechanisms for producing a threshold are not mutually exclusive and may have combined to affect the dynamics of the Asian monsoon. In any case, the threshold is related to the presence of the Tibetan Plateau, which has a profound influence on the Asia monsoon system. Key Points Proxy records at Lake Qinghai reveal a different climate history A climate threshold exists for penetration of Asian monsoon rainfall The threshold is related to the presence of the Tibetan Plateau

AB - Proxy records of summer monsoon moisture at Lake Qinghai on the northeastern Tibetan Plateau reveal a late Quaternary climate history that is subtly different from that of speleothems from southern and eastern China. Total organic carbon and authigenic carbonate in two independently analyzed and dated cores indicate (1) relative stability and aridity during the glacial interval, (2) small variations during the Bølling-Allerød and the Younger Dryas intervals, (3) comparatively abrupt change at the late Pleistocene/Holocene transition, and (4) relatively high variability during a wet early Holocene. Taken together, the data suggest that a climate threshold exists for penetration of Asian monsoon rainfall onto the Tibetan Plateau, a threshold that was crossed at the beginning of the Holocene. Conceptually, the threshold simply may be related to the topographic barrier that the eastern margin of the Tibetan Plateau presents to the landward penetration of the monsoon, or it may be related to nonlinearities in the climate system itself, such as sudden shifts in the configuration of the Westerly jet stream. Different mechanisms for producing a threshold are not mutually exclusive and may have combined to affect the dynamics of the Asian monsoon. In any case, the threshold is related to the presence of the Tibetan Plateau, which has a profound influence on the Asia monsoon system. Key Points Proxy records at Lake Qinghai reveal a different climate history A climate threshold exists for penetration of Asian monsoon rainfall The threshold is related to the presence of the Tibetan Plateau

KW - Asian Monsoon

KW - Lake Qinghai

UR - http://www.scopus.com/inward/record.url?scp=84905289441&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905289441&partnerID=8YFLogxK

U2 - 10.1002/2014GL060833

DO - 10.1002/2014GL060833

M3 - Article

AN - SCOPUS:84905289441

VL - 41

SP - 5598

EP - 5604

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 15

ER -