Model inter-comparison and validation of ADMS plume chemistry schemes
Model inter-comparison and validation of ADMS plume chemistry schemes
复制标题
ADMS 羽流化学方案的模型相互比较和验证
DOI：
10.1504/ijep.2017.10010443
复制
发表时间：
2017
影响因子：
0.7
通讯作者：
D. Carruthers
中科院分区：
文献类型：
--
作者：
Stephen E. Smith;J. Stocker;M. Seaton;D. Carruthers
两个方案的大气扩散模式ADMS中的NO2浓度的测定进行了评估，使用的数据从两个地点在阿拉斯加。这两种方案都考虑了使用相同化学配方的羽流中NO的氧化速率和NO2的光解速率。不同之处在于用于将环境臭氧夹带和混合到烟羽中的方法。在标准方案中，假设臭氧在源处瞬时混合到羽流中;在夹带限制方案中，臭氧以由瞬时羽流的稀释率确定的速率夹带到羽流中。使用包括模拟的NO2与观察的NO2的比率与模拟的NOx与观察的NOx的比率的散点图的方法来区分化学方案中的误差与NOx预测中的误差。这两种方案都显示出良好的性能统计，标准方案预测较高的NO2浓度。
Two schemes for the determination of NO2 concentrations in the atmospheric dispersion model ADMS are evaluated using data from two sites in Alaska. Both schemes take account of the rate of oxidation of NO and photolysis of NO2 in the plume using identical chemical formulations. The differences lie in the approaches used for the entrainment and mixing of ambient ozone into the plume. In the standard scheme it is assumed that ozone is mixed instantaneously into the plume at source; in the entrainment limited scheme ozone is entrained into the plume at a rate determined by the rate of dilution of the instantaneous plume. A methodology comprising a scatter plot of the ratio of modelled to observed NO2 vs. modelled to observed NOx is used to distinguish errors in the chemistry schemes from errors in the prediction of NOx. Both schemes show good performance statistics with the standard scheme predicting higher NO2 concentrations.