应用OBM模型研究广州臭氧的生成过程

应用基于观测的模型(OBM)研究了广州及其周边地区2000年夏、秋季臭氧生成过程的相对敏感性.在分析2000年7，11月广州市环境保护研究所及其下风向的花都和新垦地区臭氧及其前体物浓度变化和相互关系基础上，应用OBM模型对上述地点的光化学反应过程进行了初步的模拟分析，以讨论这一地区的光化学反应类型.研究表明:7月广州市环境保护研究所RIR(AHC)>RIR(NO)，臭氧生成处于VOC控制，下风向的花都RIR(NO)>RIR(AHC)，臭氧生成处于NO_x控制；11月广州市环境保护研究所RIR(AHC)>RIR(NO)，臭氧生成处于VOC控制，下风向的新垦RIR(NO)>RIR(AHC),臭氧生成处于NO_x控制.该模拟结果与该地区的相关空气质量模型研究结果具有可比性. 

Process Analysis of Ozone Formation in Guangzhou: Application of Observation-Based Model

An observation-based model(OBM) was used to analyze the process of ozone formation in Guangzhou area in the summer and autumn of 2000.The concentration change and relations of ozone and its precursors at Guangzhou Environmental Protection Institute(GEPI) and two downwind suburban areas,Huadu and Xinken,in July and November 2000 were analyzed.On this basis,the OBM was applied to preliminarily simulate the photochemical process and discuss the type of photochemical reaction at these areas.The results showed: in July,the relative incremental reactivity(RIR) of AHC was greater than that of NO and the ozone formation was in VOC-control condition at GEPI,while the RIR of NO was greater than that of AHC and the ozone formation was in NO_x-control condition at its downwind Huadu;in November,the RIR of AHC was greater than that of NO and the ozone formation was in VOC-control condition at GEPI,while the RIR of NO was greater than that of AHC and the ozone formation was in NO_x-control condition at its downwind Xinken.The results were comparable to those applied with AQM method in this region.