A simple photochemical module implemented in RAMS for tropospheric ozone concentration forecast in the metropolitan area of Sao Paulo, Brazil: Coupling and validation
A simple photochemical module implemented in RAMS for tropospheric ozone concentration forecast in the metropolitan area of Sao Paulo, Brazil: Coupling and validation
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DOI：
10.1016/j.atmosenv.2005.07.017
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发表时间：
2005-11-01
影响因子：
5
通讯作者：
Andrade, MD
中科院分区：
文献类型：
--
作者：
de Freitas, ED;Martins, LD;Andrade, MD
将一个在线简化的光化学模块与大气中尺度模式RAMS相结合，对巴西圣保罗大都市区的臭氧和其他成分浓度进行业务预报。地面污染物浓度数据之间的比较，由自动网络站提供的空气质量监测和模拟值，显示出良好的协议，与相关系数大于0.7的所有站考虑。所有分析站的平均值的一致性指数高于0.8。在模拟过程中观察到的一个重要特征是模型能够模拟MASP上空的臭氧夜间浓度，这通常是由于这种污染物从其他区域和更高层次的大气中传输而观察到的，代表了微尺度过程和化学反应之间的密切耦合，尽管这些夜间最大值在某些情况下被模型高估。该模型的计算效率表明，它可以被认为是相对较小的PC为基础的集群的操作程序，并作为一个嘟嘟的排放控制策略的环境机构关心的空气质量的改善。(c)2005爱思唯尔有限公司保留所有权利。
An in-line simplified photochemical module was coupled with RAMS, an atmopsheric mesoscale model, to produce an operational forecast of ozone and other constituent concentration for the Metropolitan Area of Sao Paulo (MASP), Brazil. Comparisons between surface pollutants concentrations data, provided by automatic network stations for air quality monitoring and modeled values, show good agreement, with correlation coefficients greater than 0.7 for all stations considered. Mean values over all analyzed stations have an index of agreement higher than 0.8. An important feature observed during the simulations was the ability of the model to simulate nocturnal concentrations of ozone over MASP which are usually observed as a result of transport of this pollutant from other regions and from higher levels of the atmosphere, representing the close coupling between the micro scale process and the chemical reactions, although these nocturnal maximums are overestimated by the model in some cases. The computational efficiency of the model shows that it can be considered for operational procedures with relatively small PC-based clusters and used as a toot for emission control strategies by environmental agencies concerned with the improvement of air quality. (c) 2005 Elsevier Ltd. All rights reserved.