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青藏高原近40年的降水变化及水汽输送分析
引用本文:缪启龙,张磊,丁斌.青藏高原近40年的降水变化及水汽输送分析[J].气象与减灾研究,2007,30(1):14-18.
作者姓名:缪启龙  张磊  丁斌
作者单位:南京信息工程大学,江苏省气候灾害重点实验室,江苏,南京,210044
基金项目:江苏省气象灾害重点实验室资助项目(编号:KLME05004)
摘    要:利用中国青藏高原地区1961—2000年56个气象站的逐月降水资料,分析了青藏高原地区1961—2000年的降水量变化趋势及水汽输送。结果表明,青藏高原40 a降水量呈增加趋势,线性增长率为1.12 mm/a。高原南区年降水量呈增加的趋势,线性增长率为1.97 mm/a;北区年降水量变化较小。青藏高原降水量在1978年由少雨期转为多雨期,青藏高原夏季降水与孟加拉湾的水汽输送及副高的水汽输送关系密切。

关 键 词:青藏高原  降水变化  突变  水汽输送
文章编号:1007-9033(2007)01-0014-05
修稿时间:2007-01-12

Analysis of Precipitation Changes and Water Vapor in the Tibetan Plateau during the Last Four Decades
MIAO Qi-long,ZHANG Lei,DING Bin.Analysis of Precipitation Changes and Water Vapor in the Tibetan Plateau during the Last Four Decades[J].Meteorology and Disaster Reduction Research,2007,30(1):14-18.
Authors:MIAO Qi-long  ZHANG Lei  DING Bin
Abstract:The precipitation changes and water vapor of the Tibetan Plateau during 1961-2000 were analyzed by using monthly data from 56 stations, the result shows that the annual precipitation of the Tibetan Plateau behaves upward trend, and the linear growth rate is 1.12 mm per year. The Southern Plateau precipitation shows upward trend, the linear rate is 1.97 mm per year, while the Northern Plateau suggests little change. And we find that the precipitation was catastrophe in 1978. The water vapor of the Bengal Gulf and subtropical high was related to the Plateau summer rainfall.
Keywords:The Tibetan Plateau  Precipitation change  Catastrophe  Water vapor  
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