贺兰山地区沙尘气溶胶粒子谱分布的观测研究

Observational Researches on the Size Distribution of Sand Aerosol Particles in the Helan Mountain Area

１９９６年至１９９９年４年间的４月和５月，在贺兰山的东西两侧沙漠地区用ＡＰＳ—３３１０Ａ．型激光空气动力学粒子谱仪进行了大气气溶胶数浓度和质量浓度的观测，取得了大量背景大气、浮尘、扬沙和沙尘暴天气条件下的沙尘粒子谱分布资料，通过统计分析研究，总结出不同沙漠地区不同沙尘天气条件下的大气气溶胶粒子谱的分布规律。

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.