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 include (1) Precipitation – condensed atmospheric water falling to earth (2) Evaporation – phase transition of a… Read More →
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, a model that considers the physical processes of advection, dispersion, lateral inflow, and transient storage. The… Read More →
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 non-conservative solutes that are subject to sorption processes and/or first-order decay. The governing equation underlying the model… Read More →
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). Explanatory variables within the regression model include various functions of stream-flow, decimal time, and additional user-specified data… Read More →
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 be run in a single-event mode, or in continuous mode. Continuous simulations can be run for… Read More →
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 a daily time step. Model Description: BOCHUM.pdf Contact: dgaren@wcc.nrcs.usda.gov or Andreas.Schumann@ruhr-uni-bochum.de ___________________________________________________________________________________________________________________________________
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, groundwater depth) and time series of precipitation, air temperature, air humidity, global radiation or sun duration and wind… Read More →
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 can be used to estimate nonpoint source loads from various land uses as well as fate… Read More →
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 compiled an up-to-date inventory of several highly popular and useful models to produce this groundbreaking… Read More →