GMS is a comprehensive software package for developing computer simulations of groundwater problems. GMS is the most sophisticated and comprehensive groundwater modeling pre- and post-processor available today. GMS is used at thousands of sites including federal, state, private and, international sites.

GMS provides tools for every phase of a groundwater simulation including site characterization, model development, post-processing, calibration, and visualization. GMS is the only system which supports TINs, solids, borehole data, 2D & 3D geostatistics, and both finite element and finite difference models in 2D & 3D. Currently supported models include MODFLOW, MODPATH, MT3D, RT3D, FEMWATER, and SEEP2D.

GMS is distributed commercially through Environmental Modeling Systems Incorporated (EMS-I). EMS-I also sponsors regularly scheduled training courses featuring GMS. If you are interested in downloading, evaluating, or purchasing GMS, please visit the EMS-I site.

Sample code for creating GMS Data Sets: Fortran, C