基于移动趋势面的降水面雨量分析

Area Rainfall Analysis Based on Mobile Trend Surface Analysis

在分析现有面雨量计算方法及降水站点相互关系的基础上,采用移动趋势面分析法对已知站点降水进行拟合,建立区域降水三维模型。并通过某地区62个雨量站点的年降雨量进行了实例演示,通过比较已知站点实际降雨量和拟合降雨量,发现最大相对误差为8%,平均相对误差为5.1%,不仅满足实际需要,而且形象直观地反映该地区降水量变化趋势。

Based on the current calculation technique of surface rainfall and the interaction of rainfall station,the rainfall station precipitation was fitted using mobile trend surface, coastitute 3D modeling of region precipitation and validate the 3D modeling in a region with 62 rainfall stations. By comparing the rainfall value and fitting value,the result indicates that the maximum relative error is 8% and the average relative error is 5.1% ,the result not only satisfy the practice requirement but also reflect the rainfall trend visually.