Three-Dimensional, Unsteady, Hydrodynamic Modeling of the Circulation WITHIN the South Arm of The Great Salt Lake

R. Spall (USA)


Hydrology, Hydrodynamic Modeling, Computational Fluid Dynamics, Great Salt Lake.


The effects of surface heat flux and wind forcing on the temporal and spatial variations in flow patterns within the south arm of the Great Salt Lake is investigated numerically using the three-dimensional Estuary and Lake Computer Model (ELCOM). Results indicate that wind forcing over an isothermal lake results in nearly steady near-surface flow patterns directed at approximately right angles to the wind direction. Surface heat flux forcing without wind stresses results in the formation of multiple, unsteady gyres. The sense of rotation of these gyres is generally cyclonic during the summer months, and anti cyclonic during winter months. These thermally forced flow patterns become more complex when wind forcing is added, and appear dependent on the wind duration, direction, and speed.

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