WQMAP is an integrated modeling system designed to study surface water quality issues. The system allows the engineer or scientist to develop numerical grids, perform hydrodynamic simulations, conduct single constituent pollutant transport and multiple constituent eutrophication studies in a geographic context all from one application.


Applications for WQMAP include:

• Total Maximum Daily Loads
• Industrial Produced Water Discharges
  
• Combined Sewer Overflows
  
• Cooling Water Intakes and Discharges
  
• Effects of Engineered Structures
  

Features:

• Integrated Geographic
  Information System
  
• Grid Generation
  
• Hydrodynamic Model
  
• Pollutant Transport Model
  
• Eutrophication Model
  
• All models use same computational grid
  
• Applicable within regions such as rivers, lakes, estuaries, bays and coastal seas.
  

Grid Generation

• Rapid rectangular grid generation
  - Automatic Land Water Mask
  
• Complex grids
  - Interactive specification of boundary points
  - Poison solver for interior domain
  - Node editing tools
  
• Global Bathymetric Database
  
• User Defined Bathymetric Database

Hydrodynamic Model

• Fully coupled three-dimensional equations governing conservation of mass, momentum, salinity and temperature
  
• Curvilinear Orthogonal Formulation
  
• Forcing includes water elevation, wind speed and direction, fresh water input and solar radiation
  
• Global tidal harmonics databases

Pollutant Transport Model

• Single constituent advection-diffussion equation
  
• Curvilinear Orthogonal Formulation
  
• First Order decay and settling
  
• Multiple load sites

Eutrophication Model

• Incorporates USEPA WASP kinetic rate equations
  
• Species Include:
  - Ammonia (NH3)
  - Nitrates (NO3)
  - Phosphates (PO4)
  - Biological Oxygen Demand (BOD)
  - Dissolved Oxygen (DO)
  - Organic Nitrogen
  - Organic Phosphorous
  - Phytoplankton