【摘要】 利用嘉陵江流域的降雨资料,以数字高程模型为出发点,研究影响降水的因素,用DEM数据和有限的降水资料推求无资料地区的降水状况,由此计算流域面雨量。并与算术平均法、泰森多边形法、等雨量线法的计算结果进行对比分析,以此研究基于地形因子相关插补法的面雨量计算方法在嘉陵江流域的适应性,结果表明加入地形因素的流域面雨量计算方法适合此流域的面雨量估算。更多还原

【Abstract】 This paper adopts the rainfall data jialing river basin,and taking the digital elevation model as the starting point to research the influence factors of precipitation.With DEM data and limited precipitation data,it derives the precipitation situation of the areas without data and so to calculate the Basin Area Rainfull the surface precipitation river basin.And compared with the arithmetic average method,tyson polygon method,and line method for analysis,the results show that the calculation results of the related interpolation method based on the terrain factors are closed to the line method and be suitable for the estimates of area rainful for the river basin.更多还原