摘要
青藏高原的天气系统对降水中氧同位素比率的大小有重要影响。在西风槽的影响下,降水中δ(18)O与温度呈正相关关系;在切变线和高原低涡系统的影响下,高原季风区降水中δ(18)O与降水量和温度呈负相关。非季风区降水中δ(18)O与温度仍呈正相关。
Weather systems have significant effect on δ ̄(18)O in precipitation on Tibetan Plateau.Generally, under the influence of westerly trough, the change of δ ̄(18)O in the Plateau is sychronous with that of temperature. Under the influence of shearing line and plateau low-eddy, the change features of δ ̄(18)O in the monsoon regions of the Plateau are similar to that in coast stations or island stations in the low latitudes where there is marked negative correlated relation between δ ̄(18)O and precipitation or temperature, while the variation characteristics of δ ̄(18)O in the non-monsoon regions of the Plateau are alike with those in the continental stations in the mid-high latitudes where remarkable positive correlated relation between δ ̄(18)O and temperature is found.
出处
《冰川冻土》
CSCD
北大核心
1995年第2期125-131,共7页
Journal of Glaciology and Geocryology
基金
国家攀登计划资助
国家自然科学基金