摘要:利用一个三维化学输送模式系统RAMS-CMAQ对2007年8月14日—8月23日期间京津地区的大气NO2浓度进行了连续积分模拟,并利用美国NASA-AURA卫星的OMI探空卫星资料对模拟结果进行了验证,同时分析了不同气象条件下NO2浓度的分布特征。结果表明:模式模拟的该地区NO2浓度与卫星资料具有相当的一致性,说明模式系统能够合理的反映该地NO2浓度的分布特征和变化规律,同时气象条件对NO2浓度的空间分布有显著的影响。
关键词:氮氧化物;数值模拟;分布特征
Abstract:A three-dimensional chemical transport modeling system RAMS-CMAQ was used to investigate the NO2 concentration in BeijingTianjin Area. The simulated values were compared with the OMI satellite data from NASA. The comparisonresults showed in good agreement. The analysis of model results indicated that the meteorological conditions played an important role in NO2 concentration distribution in this area.
Keywords:nitrogen oxide; numerical simulation; distribution character istic