人民长江2017，Vol.48Issue(10)：33-39,64,8.DOI:10.16232/j.cnki.1001-4179.2017.10.008
青藏高原东南缘复杂地形条件下降水特征分析
Precipitation characteristics in complex terrains in southeast margin of Qinghai-Tibet Plateau
摘要
Abstract
Mountain hazards such as debris flows are frequent in the southeastern margin of Qinghai-Tibet Plateau, but the area is lack of accurate precipitation data.In order to evaluate the rainfall in the data-lack area, we divide the study area into 6 regions according to its hydrographic watershed and provide a precipitation vertical distribution formula based on statistic data including average annual precipitation, altitude, slope aspect, gradient, etc.from 60 meteorological stations in the 6 regions between 1981 and 2010.It is founded that the annual rainfall is well related to the altitude, slope aspect and gradient.The formula is then verified with the data in Lawagou Watershed in the Jinsha River Bain and Jiangzuigou Watershed in the Dadu River Basin.The results show that the formula can obtain a clear vertical distribution of rainfall for the area lack of meteorological stations and is generally applicable to calculating precipitation in the southeastern margin of Qinghai-Tibet Plateau, which can provide references for the warning and prevention of the mountainous hazards.关键词
山地灾害/垂直气候特征/降水垂直分布/青藏高原东南缘Key words
mountain hazard/vertical climate characteristics/precipitation vertical distribution/Qinghai-Tibet Plateau分类
天文与地球科学引用本文复制引用
董丹丹,苏鹏程,孙铭,陈权亮..青藏高原东南缘复杂地形条件下降水特征分析[J].人民长江,2017,48(10):33-39,64,8.基金项目
中国科学院科技服务网络计划(STS计划)项目(KFJ-EW-STS-094) （STS计划）
四川省科技计划项目(2015SZ0214) （2015SZ0214）
中国科学院西部之光重点项目(Y5R2040040). （Y5R2040040）
