Hydrodynamic models are often used to calculate the magnitude and direction of the wind-induced motion of water in lakes, in both engineering and water quality problems. The one- and two-dimensional model versions most frequently employed have two major parameters, the wind drag coefficient and the bottom friction coefficient. Although a number of important experiments have been performed in relation to the drag coefficient (for example Wu, 1969; Graf and Prost, 1980) and some information is also available to define a feasible range of values for the bottom friction, both parameters should be the subjects of model calibration as they are lumped in character.