摘要
利用辽宁中部地区2008年1月的气象与环境监测资料,对该地区发生的一次灰霾天气过程进行了分析。分析结果表明,由于冬季地面、高空稳定的天气条件,特别是地面500m以下的城市边界层区域的大气扩散能力的较弱,造成了空气中污染物不能扩散导致环境空气质量恶化,颗粒物浓度增高,能见度下降,形成灰霾过程。
Based on meteorology and environment monitoring data in January,2008 in Liaoning central region,a typical haze weather process was analyzed.The results showed that haze was formed due to the stable weather condition in the earth surface and upper air layer in Liaoning central region.Especially because that the weakening of atmospheric dispersion ability in the urban boundary layer that was 500 m under earth surface,caused the pollutant in the air can not disperse.Thus,it resulted in the deterioration of air quality,increase of concentration of particulate mass,and declination of visibility.And in the end,haze formed.
基金
Supported by Liaoning Meteorology Bureau Scientific Research Fund (200808)
China Meterological Administration Shenyang Atmospheric Science Research Bureau Scieatific Resarch Fund Program
Scientific Research Special Fund for Public Welfare Industry in 2008 (GYHY20080620)
关键词
灰霾
特征
空气质量
数据分析
Haze
Characteristics
Air quality
Data analysis
China
