Journal of Hydrologic Engineering · 2015 · 14 citations · 19 references
Natural ResourcesEarth SciencesHydrologyHydrologic ModelingSediment TransportWatershed HydrologyRiver Basin HydrologySediment PropertiesSediment Transport In RiversSediment Transport ModelingSuspended Load TransportWatershed ModelingModel Robustness TestingReach RoutingSediment Transport ProcessesSoil Erosion ModellingSoil Erosion ProcessesSurface ErosionSurface Erosion MechanismsSuspended Sediment Transport
A sediment transport module added to the Hydrologic Engineering Center’s Hydrologic Modeling System (HEC–HMS) Version 4.0 computes surface erosion, reach routing, and reservoir trap efficiency. The HEC–HMS sediment transport module was applied to the Upper North Bosque River Watershed (UNBRW) in central Texas, a well-instrumented watershed with good parameterization and calibration data, to test model robustness. The UNBRW is 98% rural including rangeland, forage, and dairy waste application fields. Simulation results were compared to observed average daily total suspended solid (TSS) data at five gauge locations. The HEC–HMS results matched observed TSS across the UNBRW (<1% error at all gauges) during model calibration and maintained modest residuals (−31 to 12% error) during the validation period. The HEC–HMS also performed well compared to published results through two other commonly used models.
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