Analysis on Heterogeneous Underlying Surface Roughness Length in Semi-Arid Mountains Area of Loess Plateau, China
黄土高原半干旱区非均一下垫面粗糙度分析

Using the observational data from semi-arid climate and environment observatory of Lanzhou University meteorological observation tower which contained wind speed,wind direction,temperature,pressure,humidity data from April 17,2007 to April 16,2008.The surface roughness length at the observation station in the neutral atmosphere condition was calculated with classic wind profile and wind speed standard deviation methods,meanwhile,the data analysis obtained the spatial and temporal features of the surface rou...