Chapter
Apr 26, 2012
GIS-Based 1-d Diffusive Wave Overland Flow Model
Authors: A. Kalyanapu [email protected], S. Burian [email protected], and T. McPherson [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Abstract
This paper presents a GIS-based 1-d distributed overland flow model and summarizes an application to simulate a flood event. The model estimates infiltration using the Green-Ampt approach and routes excess rainfall using the 1-d diffusive wave approximation. The model was designed to use readily available topographic, soils, and land use/land cover data and rainfall predictions from a meteorological model. An assessment of model performance was performed for a small catchment and a large watershed, both in urban environments. Simulated runoff hydrographs were compared to observations for a selected set of validation events. Results confirmed the model provides reasonable predictions in a short period of time.
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© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Department of Civil and Environmental Engineering, University of Utah, 122 S. Central Campus Drive, Suite 104, Salt Lake City, UT 84112;. E-mail: [email protected]
Department of Civil and Environmental Engineering, University of Utah, 122 S. Central Campus Drive, Suite 104, Salt Lake City, UT 84112. E-mail: [email protected]
Systems Engineering and Integration, Decisions Applications Division, Los Alamos National Laboratory, MS F607, Los Alamos National Laboratory, Los Alamos NM 87545;. E-mail: [email protected]
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