Application of a Nested-grid hydrodynamic model for circulation and thermal structure in the coastal boundary layer of Lake Huron

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.