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EFFECTS OF THE TOPOGRAPHIC INDEX DISTRIBUTION ON PREDICTED RUNOFF USING GRASS 1
Author(s) -
Chairat Sihem,
Delleur Jacques W.
Publication year - 1993
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1993.tb03266.x
Subject(s) - surface runoff , digital elevation model , hydrology (agriculture) , environmental science , drainage basin , elevation (ballistics) , index (typography) , catchment hydrology , distribution (mathematics) , contour line , hydrological modelling , soil science , geology , remote sensing , meteorology , mathematics , geography , climatology , cartography , ecology , geometry , mathematical analysis , geotechnical engineering , world wide web , computer science , biology
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 km 2 ) is used to determine the catchment response modeled by TOPMODEL for three rainfall events.