Variational features of precipitation δ18O in Northeast Qinghai-Tibet Plateau

被引:19
作者
章新平
施雅风
姚檀栋
机构
[1] Department of Geography,Hunan Normal University,Changsha 410081,China
[2] Lanzhou Institute of Glaciology and Geocryology,Chinese Academy of Sciences,Lanzhou 730000,China
关键词
Northeast Qinghai-Tibet Plateau; oxygen isotope; temperature; precipitation amount; weather system;
D O I
暂无
中图分类号
P426.612 [];
学科分类号
0706 ; 070601 ;
摘要
There is a marked positive correlation between δO in atmospheric precipitation andtemperature in the Northeast Qinghai-Tihet Plateau.The amount effect in Tuotuohe station is notable as thetemperature is greater than or equal to 7.3℃,so is in Xining as 8.3℃.The analytic results show that thesynoptic and climatic significance of different time scales is different,and their degrees are also different.Moreover,the relations between the weather systems in the Northeast Qinghai-Tibet Plateau and δO inprecipitation are analyzed.Under the influence of continental air mass the δO change in the Plateau issynchronous with that of temperature and under the oceanic air mass originated from the Bengal Bay and theArabian Sea there is a marked negative correlation between δO and precipitation amount or temperature in themonsoon region of the Plateau and also positive one between δO and temperature in the non-monsoon region.
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页码:854 / 864
页数:11
相关论文
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[1]  
Climate of Qing-Zang Plateau .2 Yang Xie. Meteorologic Press . 1990