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Watershed Models
Hydrology / watershed models listed in this inventory are generally used in the simulation of components of or the entire water cycle. They are primarily used for hydrologic prediction and for understanding hydrologic processes. Specific component processes of the water cycle simulated…
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One-dimensional Transport with EQuilibrium chemistry (OTEQ)
OTEQ is a mathematical simulation model used to characterize the fate and transport of waterborne solutes in streams and rivers. The model is formed by coupling a solute transport model with a chemical equilibrium submodel. The solute transport model is based on OTIS,…
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One-Dimensional Transport with Inflow and Storage (OTIS)
OTIS is a mathematical simulation model used to characterize the fate and transport of waterborne solutes in streams and rivers. OTIS is often used with data from field-scale tracer experiments to quantify the hydro-logic parameters affecting solute transport. Additional applications include analyses of…
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LOAD ESTimator (LOADEST)
LOAD ESTimator (LOADEST) is a FORTRAN program for estimating constituent loads in streams and rivers. Given a time series of stream-flow, additional data variables, and constituent concentration, LOADEST assists the user in developing a regression model for the estimation of constituent load (calibration).…
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CASC2D (CASCade of planes, 2-Dimensional)
CASC2D is a square-grid (raster) hydrologic model that solves the equations of transport of mass, energy, and momentum between model grid cells using a finite difference formulation. The model can be used in the simulation of spatially-varied Hortonian watershed hydrology and erosion/sediment transport. CASC2D can…
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Bochum Water Balance Model (BWBM)
BWBM is a spatially distributed continuous soil moisture accounting and precipitation/snow-melt runoff simulation model. The model is intended for mesoscale (approx. 100-10000 sqkm) watersheds. The model continuously simulates stream flow and all components of the water balance on a spatially distributed basis at…
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ArcGMO
ArcGMO is a deterministic 3D-catchment, multilayer model used to predict components of the water budget in small and large watersheds . The model uses digital maps for describing the spatial characteristics of the research area (elevation, aspect, slope, soil, land use/land cover,…
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Hydrological Simulation Program FORTRAN (HSPF)
HSPF is a process-based watershed model for quantifying runoff and addressing water quality impairments associated with combined point and nonpoint sources. HSPF simulates nonpoint source runoff and pollutant loadings for a watershed and performs flow and water quality routing in stream reaches. HSPF…
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About the Database
Hydrologic modeling is at the heart of modern hydrology, supplying rich information that is vital to addressing resource planning, environmental, and social problems. Recognizing the need for a broad, comprehensive overview of the various types of models, we have have…
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