DOI: 10.1016/j.quascirev.2016.07.027
Scopus记录号: 2-s2.0-84979752637
论文题名: Multi-decadal periods of enhanced aeolian activity on the north-eastern Tibet Plateau during the last 2ka
作者: Stauch G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 149 起始页码: 91
结束页码: 101
语种: 英语
英文关键词: Aeolian sediments
; Holocene
; North-eastern Tibet
; Palaeoclimate
Scopus关键词: Catchments
; Sediments
; Aeolian sediments
; Eastern Tibetan plateau
; Holocenes
; Medieval climate anomalies
; North-eastern Tibet
; Palaeoclimate
; Semi-arid environments
; Stimulated luminescence
; Climate change
; climate conditions
; climate variation
; decadal variation
; eolian deposit
; eolian process
; Little Ice Age
; paleoclimate
; proxy climate record
; speleothem
; westerly
; China
; Qinghai-Xizang Plateau
; Xizang
英文摘要: The north-eastern Tibetan Plateau is regarded as key area for the understanding of the Holocene paleoclimate in central Asia. During the last decade a special emphasis has been placed on multi-decadal to millennial scale climate fluctuations, especially in the context of the recent climate change. However, most reconstructions are based on lake sediments, tree rings and speleothems whereas only little information from terrestrial archives is included. This study presents multi-decadal scale climate fluctuations based on optical stimulated luminescence (OSL) ages from aeolian sediments from three catchment areas. Six phases of enhanced aeolian accumulation during the last 2000 years, each lasting around 80–200 years were identified. The first three phases (1630–1725 CE, 1450–1530 CE and 1250–1350 CE) occurred during the Little Ice Age; the other three (750–950 CE, 390–540 CE, 50–225 CE) during the so-called dark ages cooling. Aeolian processes were strongly reduced during the medieval climate anomaly. A comparison with other proxy records indicates that the formation of aeolian archives on the north-eastern Tibetan Plateau during the late Holocene is facilitated by cool and dry climate conditions during times of weaker Asian Summer Monsoon and probably enhanced westerlies. The results show that short term climate fluctuations can be reconstructed from non-continuous and heterogeneous terrestrial archives in a semi-arid environment, provided a sufficient number of OSL ages from aeolian sediments is available. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59473
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geography, RWTH Aachen University, Templergraben 55, Aachen, Germany
Recommended Citation:
Stauch G.. Multi-decadal periods of enhanced aeolian activity on the north-eastern Tibet Plateau during the last 2ka[J]. Quaternary Science Reviews,2016-01-01,149