中文摘要：

作为在地球上的最高、很广泛的高原，西藏的高原有强壮的热力学的效果，它在高原而且温度和自己的降水模式附近影响地区性的气候不仅。然而由于散布气象学的车站，它的空间降水模式和，特别机制在后面糟糕被理解。空间地一致的导出卫星的降水数据的可获得性使在高原得到精确降水模式可能，它能帮助份量上在降水模式上探索集体举起效果的效果和机制。这份报纸充分利用 TMPA 3B43 V7 每月的降水数据追踪降水的轨道并且识别了四条线路(东方，东南，向南西方方向) 沿着哪个潮湿沉重的空气群众移动进高原。我们做了降水模式沿着线路是对从潮湿来源和地志的障碍的距离的这四条潮湿沉重的空气群众交通线路的结果相互影响的假设。到那么，我们开发 multivariate 有作为到这的依赖变量和地形学的障碍，四潮湿作为独立变量采购的年度吝啬的降水的空间分发的线性回归模型。结果证明我们的模型能在高原解释吝啬的年度降水模式的大约 70% 空间变化；回归分析也证明东南潮湿来源(孟加拉的海湾) 贡献大多数(32.56%) 到高原的降雨模式；东方和南方来源将近有一样的贡献， 23.59% 和 23.48% 分别地；当西方来源最不作出贡献时，仅仅 20.37% 。这研究的调查结果能极大地在空间降水模式上改进我们集体举起效果的理解。

英文摘要：

As the highest and most extensive plateau on earth, the Tibetan Plateau has strong thermo- dynamic effect, which not only affects regional climate around the plateau but precipitation patterns of scattered meteorological also temperature and itself. However, due to stations, its spatial precipitation pattern and, especially, the mechanism behind are poorly understood. The availability of spatially consistent satellite-derived precipitation data makes it possible to get accurate precipitation pattern in the plateau, which could help quantitatively explore the effect and mechanism of mass elevation effect on precipitation pattern. This paper made full use of TMPA 3B43 V7 monthly precipitation data to track the trajectory of precipitation and identified four routes （east, southeast, south, west directions） along which moisture-laden air masses move into the plateau. We made the assumption that precipitation pattern is the result interplay of these four moisture- laden air masses transportation routes against the distances from moisture sources and the topographic barriers along the routes. To do so, we developed a multivariate linear regression model with the spatial distribution of annual mean precipitation as the dependent variable and the topographical barriers to these four moisture sources as independent variables. The result shows that our model could explain about 7o% of spatial variation of mean annual precipitation pattern in the plateau; the regression analysis also shows that the southeast moisture source （the Bay of Bengal） contributes the most （32.56%） to the rainfall pattern of the plateau; the east and the south sources have nearly the same contribution, 23.59% and 23.48%, respectively; while the west source contributes the least, only 2o.37%. The findings of this study can greatly improve our understanding of mass elevation effect on spatial precipitation pattern.