Dr. Martin T. Auer MTU Department of Civil & Environmental Engineering CE5504 Surface Water Quality Modeling Lab 6. Coastal Zone Modeling: The Lake Ontario Nearshore

Little loads, like those from toads … Lake Ontario

western Lake Ontario Little loads, like those from toads …

Ajax - Pickering Little loads, like those from toads …

The Extreme Nearshore point of pollutant entry public perception of water quality issues o coliform o turbidity o Cladophora

Modeling the Coastal Zone dissipation of turbulence concentration is – f (mass transport) f (reaction) system of orthogonal completely-mixed cells

Modeling the Coastal Zone (a) unbounded fluid with diffusion (b) unbounded fluid with advection and diffusion  (c) bounded fluid with advection and diffusion

Writing the Mass Balance differences among cells

Writing the Mass Balance for a general cell for square cells of constant depth, and the bulk diffusion coefficient, because cells are square, A c is given by, and the volume is,

Steady State Solution substituting for Q, A c and E’ and solving at steady state, collecting terms and solving algebraically, (note differences for shoreline vs. non-shoreline cells)

Steady State Solution for non-shoreline cells (W?), for non-shoreline cells (no c s ),