Extended Abstract (84K)6.6
Measurements of Turbulence Parameters and Dissipation in Complex Terrain
Raghavendra Krishnamurthy, Arizona State University, Tempe, AZ; and R. Calhoun, H. J. S. Fernando, and G. S. Poulos
Analysis of radial wind velocity data from the TREX Doppler lidar is used to calculate turbulent spectral statistics over a non-uniform terrain. Using lidar data collected from the Terrain-induced Rotor EXperiment (TREX), carried out in March and April 2006, turbulent kinetic energy dissipation rates, radial velocity variances and integral scales are calculated for the boundary layer over a mountain range in California. The dissipation rates are estimated through a classical structure function technique. Estimates of kinetic energy dissipation rate are compared with that evaluated using sonic anemometers placed on a meteorological tower. Estimates show a clear diurnal variation of the dissipation, with a maximum occurring on the early afternoon.
Session 6, T-REX
Tuesday, 7 August 2007, 1:30 PM-3:30 PM, Waterville Room
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