Research on hydrogeological conditions based on ArcGIS-taking Yongding River's ecological water supplement as an example

With the progress of digitization and the continuous development of GIS, it is convenient for us to better understand, manage and coordinate the geographical information display in engineering application from all levels. This paper introduces the extraction and conversion of geological survey, deep well data and long-term groundwater level monitoring data with ArcGIS mapping technology in the study of hydrogeological conditions in the western part of Beijing, and the standardized drawing of the extracted and transformed data and graphic information. The display and characterization of regional geographic information, analysis of groundwater influencing factors and local fine research are realized, which provides support for research work. By comparing with Sufer and AutoCAD, advantages of ArcGIS software are as follows: 1) It supports multiple data formats and has strong linkage with other software. 2) Rich drawing commands. 3) It has powerful data editing function.