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Vertical profiles of horizontal wind speed in urban area (Shibuya, Tokyo), where is surrounded by many types and heights of buildings, were obtained using a Doppler lidar system. We tried to estimate roughness length and zero plane displacement height by the non-linear least square fitting method with 10 minutes mean profiles fit to the theoretical log-law wind profile. As the results, the roughness length and the zero plane displacement height around the site were estimated to 0.60±0.88m and 26.8±8.8m above the ground, respectively. The roughness length and the zero plane displacement height, derived by another method using the building floor information of GIS database of the Tokyo Metropolitan government, were estimated to 0.74m and 31.7m, respectively.
