水资源与水工程学报2013，Vol.24Issue(1)：130-134,5.
新安江流域降雨量空间插值方法和参数筛选
Spatial interpolation method and parameters screening for precipitation in Xin' anjiang river basin
摘要
Abstract
The paper selected precipitation and geographic terrain data of 48 rainfall gage stations in the Xin'anjiang River basin from 2000 to 2010,and used inverse distance weight(IDW),radial basis function (RBF) ,ordinary Kriging (OK) and residual Kriging(RK) methods to interpolate and screened the best interpolation method and parameter according to the validated results. The results show that in annual scale the precision of RK method witch comprehensively considered the influences of elevation and latitude is the highest, then follows by IDW, OK and RBF; the search strategy of neighbor stations has greater impact on IDW interpolation accuracy; the precision of OK method witch considered anisotropic is higher, but the difference between the models is little. On monthly scale, the interpolation precision of IDW method to rich rainfall month is higher; the interpolation effect of RBF method to less and evenly distributed rainfall month is good; the data is more in accordance with normal distribution, the higher the interpolation accuracy of OK method; RK method is applicable to the month when the correlation between rainfall distribution and geographical factors is good.关键词
空间插值/反距离权重/径向基函数/克里金方法/新安江Key words
spatial interpolation/ inverse distance weight/ radial basis function/ Kriging method/ Xin' anjiang River分类
天文与地球科学引用本文复制引用
何文英,毕孟飞,李泽利,王玉秋..新安江流域降雨量空间插值方法和参数筛选[J].水资源与水工程学报,2013,24(1):130-134,5.基金项目
环保部环境规划院水污染防治综合项目(2012A012) （2012A012）
