用克里格插值法建立DEM模型

The Establishment of DEM Model Using the Kriging Interpolation Method

本文通过对某地区局部高程数据空间特征的地统计分析，并利用分析所得结果对克里格插值模型的相关参数进行设置，与经典的反距离加权模型的结果进行比较证明，使用克里格插值法插值结果精度较高，而且在图形特征上更适合用来表达地形地貌，同时也证明了使用克里格插值法建立DEM的可行性。

Local elevation data in a region is geostatistical analyzed in this paper, and related parameters in the model of Kriging Interpolation is set up according to the analysis results. Compared with the classical inverse distance weighted model, the interpolation accuracy is improved, and Kringing Interpolation is more suitable for expressing topography on graphics features. Moreover it proves that this method is effective.