Arid
DOI10.1177/0959683616652711
Precipitation evolution of Central Asia during the last 5000 years
Wolff, Christian1,2,3; Plessen, Birgit3; Dudashvilli, Alexey S.4; Breitenbach, Sebastian F. M.5; Cheng, Hai6,7; Edwards, Lawrence R.7; Strecker, Manfred R.2
通讯作者Wolff, Christian
来源期刊HOLOCENE
ISSN0959-6836
EISSN1477-0911
出版年2017
卷号27期号:1页码:142-154
英文摘要

Central Asia is located at the confluence of large-scale atmospheric circulation systems. However, the number of Holocene climate records is still low in most parts of this region and insufficient to allow detailed discussion and comparisons to disentangle the complex climate history and interplays between the different climatic systems. Here, we present the first stalagmite record from arid Central Asia (south-western Kyrgyzstan) by using O-18, C-13, and micro x-ray fluorescence (mu XRF)-sulfur data spanning the last 5000 years. The cave hosting stalagmite Uluu-2 is ideally suited to identify past shifts in seasonal variations in precipitation in this part of the world. Comparison of instrumental and paleo-isotopic studies demonstrates that the Uluu-2 speleothem isotope composition faithfully records climate changes and responds to shifts in the proportion of moisture derived from mid-latitude Westerlies during the winter/spring season. The reconstructions suggest that the area was characterized by a dry climate from 4700 to 3900 yr BP, interrupted by a wet episode around 4200 yr BP. Further drier conditions also occurred between 4000 and 3500 yr BP. Wetter conditions were re-established at ca. 2500 yr BP, after another dry episode between 3000 and 2500 yr BP. With the exception of two short dry events (1150 and 1300 yr BP), the period after 1700 yr BP shows moderate to wet conditions. Regional comparisons suggest that the strength and position of the Westerly winds control climatic shifts in arid Central Asia, leading to complex local responses.


英文关键词Central Asia North Atlantic Oscillation precipitation reconstruction Siberian High speleothem stable isotope Westerlies
类型Article
语种英语
国家Germany ; Kyrgyzstan ; England ; Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000391442600013
WOS关键词STABLE-ISOTOPE COMPOSITION ; EASTERN PAMIRS TAJIKISTAN ; NORTH-ATLANTIC CLIMATE ; LATE HOLOCENE HISTORY ; ARID CENTRAL-ASIA ; LAKE SON KUL ; TIEN-SHAN ; ARAL SEA ; MOISTURE EVOLUTION ; SOUTHWEST ASIA
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/199420
作者单位1.Max Planck Inst Chem, Climate Geochem Dept, Hahn Meitner Weg 1, D-55128 Mainz, Germany;
2.Univ Potsdam, Inst Earth & Environm Sci, Potsdam, Germany;
3.GFZ German Res Ctr Geosci, Sect Climate Dynam & Landscape Dev 5 2, Helmholtz Ctr Potsdam, Potsdam, Germany;
4.CAIAG, Bishkek, Kyrgyzstan;
5.Univ Cambridge, Dept Earth Sci, Cambridge, England;
6.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China;
7.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA
推荐引用方式
GB/T 7714
Wolff, Christian,Plessen, Birgit,Dudashvilli, Alexey S.,et al. Precipitation evolution of Central Asia during the last 5000 years[J],2017,27(1):142-154.
APA Wolff, Christian.,Plessen, Birgit.,Dudashvilli, Alexey S..,Breitenbach, Sebastian F. M..,Cheng, Hai.,...&Strecker, Manfred R..(2017).Precipitation evolution of Central Asia during the last 5000 years.HOLOCENE,27(1),142-154.
MLA Wolff, Christian,et al."Precipitation evolution of Central Asia during the last 5000 years".HOLOCENE 27.1(2017):142-154.
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