摘要
利用贺兰山地区沙尘暴历史资料和综合观测资料 ,对大气背景、浮尘、扬沙和沙尘暴发生期间的大气气溶胶数浓度谱、质量谱、大气总悬浮颗粒 (TSP)及粒径分布、微气象、分光日射观测以及沙尘样品进行中子活化处理 ,分析了该地区浮尘、扬沙和沙尘暴形成规律 ,气候变化特征和贺兰山的影响。并综合研究了沙尘气溶胶尺度谱特征、光学厚度和化学组分等变化特征 ,提出了若干结果。
According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, TSP and its particle size distribution,micrometeorology,and the solar spectroscopic radiation,even the neutron activation treatment of sand dust samples in Helan Mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of Helan Mountain are counted and analysed. In addition, the spectrum characteristics, the optical thickness and the chemical composition of sand aerosol particles are also counted and analysed.
出处
《气象学报》
CSCD
北大核心
2001年第2期196-205,共10页
Acta Meteorologica Sinica
基金
国家自然科学基金!项目"贺兰山地区沙尘暴若干问题的观测研究"
项目编号 4 95650 1 0
