Simultaneous measurements of wind speed profiles at two sites using Doppler sodars

In the wind-resistant design of buildings and structures, it is very import ant to accurately assess the design wind speed at a particular site, consid ering the variation in wind speed with terrain roughness. The authors attem pt to find a reasonable method for estimating design wind speed for given t errain roughness, through simultaneous wind observations at altitudes up to 420 m at sites with different roughnesses using two sets of Doppler sodars . In this paper, the characteristics of the mean wind speed profiles evalua ted for each distinguished wind speed in each wind direction were presented . The longitudinal mean wind speed profiles in the same storms were also co mpared for two pairs of sites to study the variation in longitudinal mean w ind speed as it is affected by inland terrain roughness. (C) 2001 Elsevier Science Ltd. All rights reserved.