GIS‐Based Groundwater Modeling
Abstract
Abstract: A geographic information system (GIS) interface to the U.S. Geological Survey (USGS) groundwater flow model MODFLOW is developed. Geologic and hydrologic information is interpolated from borehole geophysical logs and associated pump tests to form a GIS well‐log database. The GIS‐MODFLOW interface targets a modeling area and interpolates the well database to create a three‐dimensional representation of the subsurface environment. An attribute mesh is developed which represents the geometric discretization of the study area and provides a means of relating hydrologic model parameters to each cell in the mesh. Information required for each simulation is automatically extracted from the attribute mesh. A brief introduction to the GIS program ARC/INFO emphasizing the characteristics of the data structure and the macro language is given. A groundwater flow model for a portion of Shelby County, Tennessee, is developed illustrating the advantages of the GIS‐MODFLOW interface and the attribute mesh system. © 1994 Microcomputers in Civil Engineering
Publication Title
Computer‐Aided Civil and Infrastructure Engineering
Recommended Citation
Camp, C., Outlaw, J., & Brown, M. (1994). GIS‐Based Groundwater Modeling. Computer‐Aided Civil and Infrastructure Engineering, 9 (4), 281-293. https://doi.org/10.1111/j.1467-8667.1994.tb00336.x
