STUDY ON AUTOMATICALLY DISTILLING FOR GROUNDWATER FLOW NUMERICAL SIMULATION PARAMETER BY GIS

摘要

In this paper, the parameters of groundwater flow numerical simulation are compartmentalized three types, point spatial distribution, linear spatial distribution and planar spatial distribution, by the parameter spatial distribution characteristic. Using spatial analysis function of GIS, the technological course that the parameters are automatically distilled is studied. By the topologic analysis of the spatial position relation of point, line and polygon, the spatial position relation of groundwater mining well, monitoring well of groundwater level dynamic, linear and planar surface water system, boundary of simulation area, distribution subdivision of planar parameter and model spatial separated grid are confirmed). The parameters of groundwater flow simulation can be automatically acquired by transforming vector data into raster data each other. Combining with the data file structure of parameter in the groundwater flow finite-difference numerical simulation, the data files of raster structure distilled by GIS are automatically transformed into the data files of model parameter file structure, and the aims that the model parameter files are automatically organized and the efficiency of groundwater flow numerical value simulation is improved are achieved.