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中文摘要: 利用1990年秋季在石家庄地区不同天气条件下飞机观测对流层低层（距地面4000m以下高度）大气气溶胶的观测资料，分析了气溶胶粒子数密度、质量浓度水平和垂直分布特征及其日变化。结果表明，晴空下，石家庄地区气溶胶源于本地，地面质量浓度为0.15×10－9—0.85×10－9g·cm－3，高度4000m以下谱分布特征值N0=1.5×105-5.5×105cm
中文关键词: 气溶胶，数密度，质量浓度，分布特征
Abstract:The daily change of number density of aerosol particles and quality concentration in horizontal and vertical derection are analyzed. The earosol data observated by aircraft is used in convective baundary layer under different weather conditions during autumn in 1990 over shijiazhuang area. The results show that the aerosol particles are of local ones under clear air over shijiazhuang area. The concentration of aerosol particles is from 0. 15×10-9 to 0.85×10-9g.cm-3. The characteristic value of spectral distribution N0 is from 1.5×105 to 5.5×105g. cm-3,and λ value is from 13 to 15μm-1 below 4000 meters. The upward transport of aerosol particles is limited,and its distribution occurred discontinuity due to the inversion layer effected.The daily change of aerosol number density in the morning was greater than in the afternoon. The spectral distrbution of aerosol particles was affected for the city effected. The number density of aerosol particles over the city area was higher than that over the rural area.
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基金项目:河北省科学基金和中国气象局科学基金资助项目
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引用文本：
孙玉稳,段英,吴志会,1996.石家庄秋季大气气溶胶物理特征分析[J].气象,22(2):40-43.
,1996.The Analysis of Physical Feature of Aerosol Particles in Autumn over Shijiazhuang Area[J].Meteor Mon,22(2):40-43.
孙玉稳,段英,吴志会,1996.石家庄秋季大气气溶胶物理特征分析[J].气象,22(2):40-43.
,1996.The Analysis of Physical Feature of Aerosol Particles in Autumn over Shijiazhuang Area[J].Meteor Mon,22(2):40-43.