Atmospheric dust from a shallow ice core from Tanggula: implications for drought in the central Tibetan Plateau over the past 155 years (SCI)
文献类型:期刊论文
作者 | Wu G. J. ; Zhang C. L. ; Xu B. Q. ; Mao R. ; Joswiak D. ; Wang N. L. ; Yao T. D. |
刊名 | Quaternary Science Reviews
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出版日期 | 2013 |
卷号 | 59页码:57-66 |
ISSN号 | ISBN/0277-3791 |
英文摘要 | The dustiness on the remote Tibetan Plateau and its trend within the ongoing global warming perspective are not well understood. In this study, we present the detailed dust history from 1850 to 2004 AD on an annual timescale from a shallow ice core from Tanggula, central Tibetan Plateau. Two periods of strong dustiness, one at the end of the Little Ice Age (1860-1874) and the other during the period 1930-1954, occurred during low oxygen isotope stage, which is correlated with temperature on multi-year and decadal timescales. The extremely high level of dust flux between 1860 and 1874 was unique - this level has not occurred again during the past century, and the 1930s' dustiness was characterized more by strong wind and dust storms rather than drought, as shown by great grain size but low dust flux. We have used the composite analysis of modern meteorological data to study the possible dustiness mechanism and found that strengthened high-level westerlies over the Tibetan Plateau and intensified low pressure activities in the upward potential source regions, such as Tarim Basin, are the possible causes for high dust flux in Tanggula. Those results have revealed that although the dustiness on the Tibetan Plateau normally occurs in cold conditions, pronounced warming since the 1960s can change the dust pattern and strengthen the dustiness in this remote and high-altitude region, and can thus induce associated environmental issues by creating dustier conditions. (C) 2012 Elsevier Ltd. All rights reserved. |
收录类别 | (SCI) |
公开日期 | 2014-12-19 |
源URL | [http://ir.casnw.net/handle/362004/23140] ![]() |
专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所(未分类)_期刊论文 |
推荐引用方式 GB/T 7714 | Wu G. J.,Zhang C. L.,Xu B. Q.,et al. Atmospheric dust from a shallow ice core from Tanggula: implications for drought in the central Tibetan Plateau over the past 155 years (SCI)[J]. Quaternary Science Reviews,2013,59:57-66. |
APA | Wu G. J..,Zhang C. L..,Xu B. Q..,Mao R..,Joswiak D..,...&Yao T. D..(2013).Atmospheric dust from a shallow ice core from Tanggula: implications for drought in the central Tibetan Plateau over the past 155 years (SCI).Quaternary Science Reviews,59,57-66. |
MLA | Wu G. J.,et al."Atmospheric dust from a shallow ice core from Tanggula: implications for drought in the central Tibetan Plateau over the past 155 years (SCI)".Quaternary Science Reviews 59(2013):57-66. |
入库方式: OAI收割
来源:寒区旱区环境与工程研究所
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