Water Quality Management and Planning

EFDC_Explorer has powerful water quality analysis features. The post processing tools of the water quality results include 2-D plan (by layer or depth averaged) and vertical section plots as well as animations, submerged aquatic vegetation (SAV) analysis, light penetration analysis, habitat analysis.

EE is typically used to simulate growth and decay of algae and the impacted on DO, phosphorus and nitrogen cycles. The WQ is  internally coupled with hydrodynamics and sediment transport to allow smooth exchange of substances with the atmosphere and the sediment bed.

Typical examples of water quality studies include:

The images below demonstrate EE visualizations of WQ parameters from a TMDL study of Caloosahatchee Estuary, Florida. The plan view animation displays the depth averaged DO values as algal blooms form in the estuary. A track through the model domain has been defined by the user and a profile animation along that path shows chorophyl a formation near the surface later in the same year.