Schwab, D. J. NOAA Great Lakes Environmental Research Laboratory, schwab@glerl.noaa.gov
Beletsky, D. J. Department of Naval Architecture and Marine Engineering, University of Michigan, beletsky@glerl.noaa.gov
Lou, J. NOAA Great Lakes Environmental Research Laboratory, lou@glerl.noaa.gov

 
MODELING AND VISUALIZATION OF CIRCULATION PATTERNS AND SEDIMENT TRANSPORT IN LAKE MICHIGAN DURING EPISODIC EVENTS
 
Numerical models of hydrodynamic circulation and wind waves can be used to simulate waves, currents and temperatures in a coastal region with very high spatial and temporal resolution. Models of sediment resuspension and transport can be used in conjunction with the hydrodynamic circulation and wave models to estimate bottom erosion and deposition with similar resolution. Because of the large volume of the model output data, it is necessary to use advanced visualization techniques to analyze the computed current, temperature, wave, and sediment concentration fields. In this presentation we will describe techniques for graphical representation of hydrodynamic and sediment transport model output, including computer animation. The impact of episodic events on circulation, waves, and sediment transport is demonstrated using results of multi-year simulations in Lake Michigan. Visualization techniques allow us to examine the complex spatial dynamics of lake circulation, waves, and sediment resuspension, transport, and deposition. Model results for currents, waves, temperatures, and suspended sediment concentrations are compared to field observations during the simulation period. The comparisons show that the best agreement between model results and observations occurs during periods of strong forcing.
 
Day: Thursday, Feb. 4
Time: 04:15 - 04:30pm
Location: Eldorado Hotel
 
Code: SS52TH0415E