摘要
利用2016年济南市的MTP-5微波辐射仪温度廓线观测数据,对济南市1km以下逐月的大气稳定度分布特征进行了统计分析,并研究了对环境空气中PM_(2.5)和PM_(10)的影响。结果表明,济南市主要以中性大气和弱稳定性大气为主,大气稳定程度较高。济南市大气边界层内的大气稳定度分布存在明显的月变化和日变化规律。夜间大气稳定度较高,中午大气层结不稳定;低层大气稳定度日变化较大,600m以上的大气稳定度日变化较小。PM_(2.5)和PM_(10)月均浓度分布与大气稳定度的分布呈现正相关性。
According to the observation data of temperature profile measured by M T P - 5 microwaveradiometer in Jiiian in 2016, an analysis on statistical characteristics of monthly under 1km in Jiiian was carried out, and a study on the effect of the atmospheric stability on the con-centrations of PM2_5 and PM10 was then followed. T h e results show that the atmospheric stability is higher in Jiiian,predominated by the neutral and w e a k stability. Significant monthly and diurnal var-iation on distribution of atmospheric stability in the atmospheric boundary layer of Ji nan was ob-served ,whereas the atmospheric stability is higher at night,and the atmstable at noo n. T h e diurnal variation of atmospheric stability is significant at the lower level of atmos-phere ,while that for atmosphere over 600 meters is insignificant. There exists a positive correlationbetween the distribution of atmospheric stability and monthly m e a n concentrations of PM 2 5 and PM10 .
出处
《环保科技》
2017年第5期1-5,共5页
Environmental Protection and Technology
基金
国家自然科学基金专项基金(41240033)资助
