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EFFECTS OF THE TOPOGRAPHIC INDEX DISTRIBUTION ON PREDICTED RUNOFF USING GRASS1 |
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| Authors: | Sihem Chairat Jacques W Delleur |
| Abstract: | ABSTRACT: The effects of digital elevation model resolutions and contour lengths on the distribution of the topographic index, a fundamental parameter for the hydrologic model, TOPMODEL, and their influence on the predicted peak flows are investigated in this paper. A small agricultural catchment (3.38 km2) is used to determine the catchment response modeled by TOPMODEL for three rainfall events. |
| Keywords: | topographic index topographic hydrology models runoff GIS |