Groundwater Models: Converting Research Developments into Practical Applicationsby Peter F. Andersen, GeoTrans Inc, Herndon, VA, USA,
Document Type: Proceeding Paper
Part of: Computer Applications in Water Resources
One method of bridging the gap between code developer and code applier is through separate user-friendly computer programs called preprocessors that prepare data before execution of the main program. They can greatly facilitate data entry because the user is prompted only for data required in the particular simulation. The time-consuming and error-prone procedure of placing data in the correct columns on the correct card images is eliminated because the preprocessor automatically formats the data file. It can also check data for reasonableness and alert the user to potential problems. Some of the most widely used computer codes now have preprocessors available. These include the USGS (United States Geological Survey) two-dimensional groundwater flow code, the new modular USGS three-dimensional flow code, and a proprietary variable density saltwater intrusion code.
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