不同地形对山区降水垂直分布规律的影响  

Effects of Different Topographies on Vertical Distribution Law of Precipitation in Mountain Region

作　　者：穆振侠[1] 姜卉芳[1] 党建新[2] 李芳[1] 王娟[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆油田公司准东采油厂水务公司,阜康831511

出　　处：《新疆农业大学学报》2010年第1期66-71,共6页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金项目(50669006);新疆维吾尔自治区高校科研计划科学研究重点项目(XJEDU2006I21);新疆水利水电工程重点学科基金资助(xjzdxk-2002-10-05)

摘　　要：山区降水垂直分布规律的差异性造成动植物种群分布的差异性,由于目前布设稀疏的水文气象站点限制了对降水垂直分布规律的研究。考虑到TRMM/TMI卫星降水资料对天山西部山区降水有一定的探测能力,因此选取不同地形对迎风坡和背风坡加以区分并考虑水汽来源方向及其他影响因素探讨了不同地形山区降水垂直分布规律。通过分析发现受地形、风速、风向、水汽来源方向等因素的影响,山区降水的垂直分布规律表现为多种型式,其递增率或递减率并不均一,但总体上艾比湖流域降水的递增率背风坡大于迎风坡,而伊犁河流域最大降水递增率出现在迎风坡,最小递增率出现在背风坡。The difference of the vertical distribution law of mountain precipitation results in the otherness of different distribution of population of animal and plants. At present,the reaearch on the vertical distri- bution law of mountain precipitation is restricted because of just few hydrometeological forcast stations. It could provide.a certain possibility for detecting the precipitation variation in the west part of Tianshan mountain by TRMM/TMI satellite monitor data,so the impact the different topographies were selected to separate the windward side from the sheltered side,and the vertical direction of water vapor and other in- fluencing factors were discussed. The vertical distribution law of precipitation in the mountain region had various types, whose increase rate or decrease rate were different from each other. In a general way,the in- crease rate of precipitation of sheltered side of a whole Aibi lake area was greater than that of windward side. But the greatest increase rate of precipitation in Ili River valley occurred in the windward side, the least increase rate occurred in the sheltered side.

关 键 词：TRMM/TMI 降水 地形 垂直规律 海拔高度 

分 类 号：TV125[水利工程—水文学及水资源]