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

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.