A4-Year'sStudyonOxygenIsotopeinPrecipitationatTuotuoheMeteorologicalStation,IibetanPlateau

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• 出版年：1998
• 作者：TIAN Li-De；YAO Tan-Dong；YANG Zhi-Hong；PU Jian-Chen
• 单位1：Lboraty of Ice Core and Cold Regions Environment
• 语种：中文
• 作者关键词：Tuotuohe Meteorological Station；precipitation；oxygen stable isotope
• 起始页：438
• 总页数：6
• 刊名：冰川冻土
• 是否内版：否
• 刊频：季刊
• 创刊时间：1979
• 主办单位：中国地理学会中国科学院兰州冰川冻土研究所
• 主编：黄茂桓
• 地址：兰洲市东岗西路260号
• 邮编：730000
• 卷：20
• 期：4
• 核心期刊：中国自然科学核心期刊

摘要

The relationship between δ¹⁸O in precipitation and climatic factors is analyzed based onthe observation of δ₁8O in precipitation and meteorological data in the four years from 1992 to 1995 atTuotuohe Meteorological Station, Tibetan Plateau. Almost all the precipitation on the Tibetan Plateauis concentrated on the warm period of the year,while in the dry cold period, there is only a few precipi-tation events. Because the factors affecting δ₁8O in precipitation is rather complicated and the air tem-perstore does not change too much in the precipitation season，the distribution of δ₁80 in precipitationwith air temperature is therefore scattered. In this paper, the re1ationship between the aversges of eachmeteorological factor and the corresponding δ₁8O inprecipittion is analyzed. The analysis resultsindi-cafe that there is an obvious positive correlation between the monthly δ₁80 and temperature in the 4years； whenever the air temperature increases 1℃,δ₁80 in precipitation will increase 0.56%. No cor-relation can be observed between relative humidity and δ₁8O in precipitation. There still can not find anycorrelation between the annual air temperature and annua δ_l80 in precipitation in the 4 years probablydue to the very short time series of the observation and the little annual air temperature variations.