Application of a Nested-Grid Hydrodynamic Model for Circulation and Thermal Structure in the Coastal Boundary Layer of Lake Huron
Yerubandi R. Rao1* and Jinyu Sheng2
1Water Science and Technology, National Water Research Institute, Canada Centre for Inland Waters, 867 Lakeshore Road, Burlington, Ontario, Canada, L7R 4A6 2Department of Oceanography, Dalhousie University, Halifax, NS, Canada, B3H 4J1
A nested-grid hydrodynamic modeling system is used to study circulation and temperature distributions in Lake Huron and adjacent areas. This nested system is based on a three-dimensional, primitive-equation z-level ocean model. The nested system consists of two sub-components: a coarse-resolution outer model covering Lake Huron and Georgian Bay with a horizontal resolution of roughly 2.5 km, and a fine-resolution inner model covering eastern Lake Huron and northwestern Georgian Bay with a horizontal resolution of roughly 900 m. The inner model produced reasonably well the three-dimensional flow and thermal structure over the coastal boundary layer close to the eastern shore of the lake.
Keywords: numerical model, Great Lakes, coastal currents, temperature