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GSSHA - Gridded Surface Subsurface Hydrologic Analysis
Representation of Illinois flood from a 100 year storm in progress. Color represents water depth, blue being the deepest.
Representation of Illinois flood from a 100 year storm in progress. Color represents water depth, blue being the deepest.
Enlarge: 703x490(139kb)
Gridded Surface Subsurface Hydrologic Analysis (GSSHA) is a grid-based two-dimensional hydrologic model. Features include 2D overland flow, 1D stream flow, 1D infiltration, 2D groundwater, and full coupling between the groundwater, vadoze zone, streams, and overland flow. GSSHA can run in both single event and long-term modes. The fully coupled groundwater to surfacewater interaction allows GSSHA to model both Hortonian and Non-Hortonian basins.

New features of version 2.0 include support for small lakes and detention basins, wetlands, improved sediment transport, and an improved stream flow model.

GSSHA has been successfully used to predict soil moistures as well as runoff and flooding.

 In Depth
 GSSHA Overview    GSSHA Features    GSSHA Downloads and Registration    GSSHA Documentation    GSSHA Bibliography  

Coastal and Hydraulics Laboratory - Engineer Research and Development Center
Waterways Experiment Station - Vicksburg, Mississippi
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