Research on Automatic Interpolation Techniques of Kriging Method Based on ArcPy

• 1、School of Information Engineering,China University of Geosciences(Beijing),Beijing 100083

Abstract：With the improvement of the theories and methods of Geographic Information Science and the continuous enrichment and development of computer software technology, the software of geographic information industry has developed rapidly, and has been widely used in the research of geographic information and remote sensing, which has expanded the service capacity and scope of geographic information industry, but also exposed some problems. For example, in production practice and research, data processing based on GIS software is complicated and error prone, which is mainly manifested in the problems of scale matching and accuracy matching within tolerance, and the fusion and verification of multi-source and asynchronous data; The storage of spatial database wastes a lot of manpower and material resources; There is an urgent need for performance optimization of automation technology in the big data scenario; There are some problems in using geographic information industry software to make thematic maps for specific purposes, such as high production cost, strong professionalism, high work intensity, inconsistent mapping format, etc; Repeated operation, low efficiency; It takes a long time to edit the serial number manually, which is prone to errors, inconsistent standards and other problems. Aiming at the low efficiency of spatial interpolation, this paper selects the real estate price data of six districts in Beijing as an example data, and studies the technical implementation of automatic interpolation based on arcpy site package and arctoolbox toolbox. The results show that Kriging interpolation based on second-hand house price transaction data can shorten the interpolation time by about 4 times compared with traditional ArcGIS manual interpolation when considering 4 Kriging methods, 11 semivariograms and 21 steps, which is expected to be popularized and used in Kriging interpolation research. At the same time, it supplements case verification for similar development based on arcpy package.

Keywords： Automatic interpolation ArcPy Kriging method