Estimation of Aerodynamic Parameters on Non-single Horizontal Homogeneous Underlying Surface

The method to estimate aerodynamic parameters with only velocity and temperature fluctuation data is applied to non-homogeneous surfaces and non-neutral stratification. The turbulence data measured in Beijing Meteorological Tower which is 325 m high are used to determine the zero plane displacement d and surface roughness z0. It is shown that the d and z0 are considerable dependent on wind direction