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Model
GBR Dynamic Sednet QUAL2K EFDC HSPF MIKE HYDRO River NDP SWMM RGWLF AGNPS DLEM ELEMeNT-N AVGWLF GSSHA SWAT SWAT+ CBP-WSM THMB MapShed FVCOM EcoHAT PDP AGNPS-VSA QUAL2Kw MIKE21 GPUOM-WQ PCSWMM L-THIA SWAT - MODFLOW MIKE SHE WEP-N MIKE11 InfoWorks ICM TETIS - N WAM WEPP-WQ DHSVM DYRESM�CAEDYM GLM SWAT-MODFLOW-RT3D WARMF APEX Mike Basin CE-QUAL-W2 SimplyP SEAWAT-MODFLOW GWLF AnnAGNPS Delft3D FM INCA MIKE 21 FM LSPC PCLake InVEST GBNP SUSTAIN SSHBS Delft3D WASP8
Water Body Type
Water body Watershed
Location
Florida Chesapeake Bay Watershed The Great Barrier Reef Other
Watershed Size
Small Medium Large
Predominant Land Use
Forest Urban Agricultural
Water Body Characteristics
Lakes Estuarine Coastal Oceans Rivers Streams Reservoirs
Water Body Size
Small Medium Large
Dimensions
1D 3D 2D
Simulation Type
Continuous model Event-based model
Parameters
Phosphorus DO Flow Velocity Water Levels Reservoir Operations TDS Salinity Q Nitrogen Algae TSS Temperature Sediment Transport Waves Chla TP TN
Time Step
Annual Daily Monthly Sub-daily Minutes Hours Seconds
Model Complexity
Complex Medium Simple
Simulation Objectives
Managing nutrient fluxes in polders Model nitrogen dynamics evaluate combined and sanitary sewer overflows Assess natural and human impacts on water quality BMP locations BMP Evaluations Extreme events evaluation Water resource management Evaluate Water body Hydrodynamics evaluate green infrastructure implementation Assessing agricultural phosphorus loss Climate Change Studies flood control Wave-Current Interaction Large-scale hydrologic modeling Reservoir management NPS nutrient loads evaluation modeling of complex domains Holistic Simulation Evaluate nitrogen loads in cold regions Evaluate groundwater nutrient dynamics assess the effects of land use change Urban stormwater management assess sediment and nutrient transport Watershed management TMDL development flood and drought management Ecosystem Assessments Manage eutrophication and algal blooms evaluate water quality improvement Assess nutrient and carbon fluxes hydropower optimization Erosion analysis Understand hydrology in snow regions Assessment of Storm events Identify Priority Management Areas Assess hydrology-biogeochemistry in streams simulate watersheds with variable source areas Screening Simulation Support navigation Storm Surge analysis
Data Requirements
Specific yield Wind LULC DO Sewer networks Wind Speed Stream network Geomorphic parameters ET N surplus Precipitation Relative humidity Flow DEM River reach characteristics Specific storage Algae Temperature Wind speed Solar radiation Porosity Bathymetric data Hydraulic conductivity Soil Sediment characteristics Hydraulic data Water quality
Model Availability
Closed source Open source
Model Limitations
Requires numerous parameters and complex calibration Limited for hydrological impacts of climate change Limited applications in the USA Temporally lumped Not suitable for shallow systems Poor simulation of extreme events GUI is not open source Simplified hydraulic processes Simplified hydrological processes Dependent on Input Data Does not simulate large watersheds Model Expertise Extensive datasets Limited to cold regions Dependent on input data Topography data may require preprocessing Simplified floodplain dynamics Simplified vertical stratification Does not simulate P Limited to main stream simulation Inaccurate long-term projections Simplified biogeochemical processes Limited hydrodynamics High uncertainty Does not incorporate Zooplankton Sensitive to specific input parameters Limitations in model robustness and flexibility Can not be coupled with optimization algorithm Coarse spatial resolution Limited applications in urban watersheds Poor sediment simulation Limited to small stream networks Point source loads have constant rates Does not simulate N Accuracy decreases with higher trophic levels Limited applications in subtropical regions Limited to polder systems Does not model BMP properties Limited to urban watersheds Limitations in storm sewer pipes simulation and calibration Poor groundwater simulation Model expertise Limited developer and community support Assumes horizontal homogeneity Manual calibration Not user friendly Requires high computational resources Does not consider specific algae species Limited land cover dynamics

Model Library

Model library serves as a comprehensive reference guide for various watershed and waterbody simulation models. It provides detailed descriptions of each model’s type, developers, capabilities, limitations, computational requirements, and data inputs and outputs. The aim is to assist researchers, policymakers, and practitioners in selecting the most suitable modeling tools for their specific application. Each model entry includes links to download resources if it is open-source, relevant references, and examples of practical applications to further support users in making informed decisions. For more details see Model Library.