Research of interpolation methods to construct elevation surface based on ArcGIS

Geostatistical interpolation includes a variety of interpolation methods, but not all of the principle and applicability of interpolation methods are the same. So, this research based on Geostatistical Analyst in ArcGIS9.3 and elevation data, uses three interpolation methods: Ordinary Kriging, Logistic Normal Kriging and Universal Kriging to construst elevation surface. Then, measuring the accuracy of interpolation according to four indicators. Finally, this research draws the following conclusions: Universal Kriging is most suitable for the area.