Observational Researches on the Size Distribution of Sand Aerosol Particles in the Helan Mountain Area
贺兰山地区沙尘气溶胶粒子谱分布的观测研究

Sand aerosol particle size distribution has been measured by APS-3310A (U.S.A. made) in the desert area of both sides of the Helan Mountains during April to May of 1996 to 1999. A lot of data have been collected under different weather conditions, i.e., background, dust, sand-blowing and sandstorm. The rules of sand aerosol particle size distributions are found through statistical analysis.