Your search found 2 records
1 Richards, C. J.; Roaza, H.; Roaza, R. M.. 1993. Integrating geographic information systems and MODFLOW for ground water resource assessments. Water Resources Bulletin, 29(5):847-853.
(Location: IWMI-HQ Call no: PER Record No: H014072)
The Floridan Aquifer is the primary source of water in the coastal area of Santa Rosa Country, Florida. In order to optimize well field design and analyze aquifer stress problems, the USGS MODFLOW code (McDonald and Harbaugh, 1988) is applied to develop a numerical computer model of the aquifer. The Geographical Information System (GIS) Is the primary tool used in the development of the model grid, performance of the modeling procedure, and model analysis. The GIS is used in generating multiple grids in which to simulate both regional scale and local scale flow. The grid topology is recorded in geographic coordinates which facilitates georeferencing and orientation of the grid to base maps and data coverages. The GIS allows data transfer from various coverages to the nodes of the block centered grid where hydrogeologic information is stored as attributes to the grid coverage. From this grid coverage, pertinent information is querried within the GIS environment and used to generate the input files for the MODFLOW simulation. The MODFLOW execution, simulated heads and drawdown are imported into the grid coverage where residual error and recharge rates can be calculated. Contoured surfaces are then created for selected data sets including simulated heads, drawdown, residual error, and recharge rates. Model calibration is conducted utilizing the GIS to generate the process data sets associated with model simulations.
2 Roaza, H.; Roaza, R. M.; Wagner, J. R. 1993. Integrating geographic information systems in ground-water applications using numerical modeling techniques. Water Resources Bulletin, 29(6):981-988.
(Location: IWMI-HQ Call no: PER Record No: H014511)
Powered by DB/Text WebPublisher, from
