阴天条件下河北地区大气气溶胶粒子分布特征分析  

Analysis on Characteristics of Aerosol Particles Distribution in Cloudy Day in Hebei

作　　者：孙玉稳[1,2] 李云川[1] 孙云[3] 

机构地区：[1]河北省人工影响天气办公室,河北石家庄050021 [2]中国气象局云雾物理环境重点开放实验室,北京100081 [3]河北省石家庄市气象局,河北石家庄050000

出　　处：《安徽农业科学》2010年第21期11277-11278,共2页Journal of Anhui Agricultural Sciences

基　　金：中国气象局云雾物理环境重点开放实验室课题(2009-Z0034);科技部公益性行业(气象)科研专项(GYHY-200806001)

摘　　要：利用2007年春季在河北省中南部地区2架次飞机探测资料,分析了该地区阴天情况下大气气溶胶粒子浓度和谱的分布特征。结果表明,南支槽和华北低涡天气系统下气溶胶粒子浓度随高度的增加总的趋势是减小的,但如果高空有卷层云存在时,出现随高度增加而增加的现象。逆温层底存在气溶胶和云滴的明显累积。受复杂天气系统的影响,气溶胶粒子谱由于上升气流或乱流的扰动,呈多峰型分布。Based on the atmospheric detection data of two flights in middle and southern parts of Hebei in the spring of 2007,the characteristics of aerosol particles concentration and spectral distribution in cloudy day were analyzed.The results indicate that,under the weather systems of southern trough and north vortex,the overall trend of aerosol particle concentration decreases while height is increasing;however,it increases with height when there are cirrostratuses in upper air.And there is a clear accumulation of aerosol and cloud droplets in the inversion base.Affected by the complex weather systems,the aerosol particle spectrum shows a multiple peak distribution due to the disturbance of updraft or turbulence.

关 键 词：河北 大气气溶胶 粒子谱 观测 

分 类 号：X513[环境科学与工程—环境工程]