Relationships between δ18O in summer precipitation and temperature and moisture trajectories at Muztagata, western China

被引:1
作者
Wusheng Yu
Tandong Yao
Lide Tian
Zhen Li
Weizhen Sun
Yu Wang
机构
[1] Institute of Tibetan Plateau Research,Laboratory of Environment and Process on Tibetan Plateau
[2] Chinese Academy of Sciences,Key Laboratory of Cryosphere and Environment, Jointly Established by Cold and Arid Regions Environmental and Engineering Research Institute and Institute of Tibetan Plateau Research
[3] Chinese Academy of Sciences and Chinese Academy of Meteorological Sciences,undefined
[4] China Meteorological Administration,undefined
来源
Science in China Series D | 2006年 / 49卷
关键词
Muztagata; O; precipitation; temperature; moisture transport;
D O I
暂无
中图分类号
学科分类号
摘要
Based on summer observations of stable isotope of precipitation at Muztagata, western China, during 2002-2003, this paper presents the relationship between δ18O in precipitation and air temperature, and discusses the effect of moisture transport on δ18O in precipitation. Results show that air temperature correlates positively with δ18O in precipitation, and the temperature effect controls the δ18O of precipitation in this area. The Muztagata region exhibits high δ18O values in summer precipitation, similar to those shown at stations in adjacent regions. According to the results of our model set up to trace the moisture trajectories, the westerlies and local moisture circulation contribute to variations of oxygen isotopes in precipitation. In addition, the impacts of the moisture transport distance, the moisture transport level, and the incursion of the polar air mass also influence the variations of δ18O in precipitation. The moisture origins and transport mechanisms also contribute to the variation of δ18O in precipitation at Muztagata.
引用
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页码:27 / 35
页数:8
相关论文
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