沙漠与绿洲气象Issue(2)：69-74,6.DOI:10.3969/j.issn.1002-0799.2015.02.011
气象条件对污染物浓度分布影响的研究
Research on the Impact of Meteorological Field on the Spatial Distribution of the Pollutant Concentration
摘要
Abstract
SO2 concentration in urban Lanzhou for the period of 30 Jan- 2 Feb was simulated using the Multi-scale Community Air Quality(CMAQ)model with meteorological field from the Weather Research and Forecasting (WRF)model. The spatial distribution of SO2 and its diurnal variations were analyzed focusing on the effect of mean wind and the vertical transport of pollutants by mountain-valley winds. Related to emission source distributions and meteorological conditions, there are two hot spots of high SO2 concentrations located in Xigu and Chengguan districts, respectively. The area with high SO2 concentrations in nighttime is smaller than that in daytime, and the maximum SO2 concentration at night was significantly higher than that in daytime. The mean wind and the vertical wind related to mountain-valley wind circulation have obvious influence on near surface SO2 concentrations. Results from this study would provide guidance on the sitting of air quality monitoring sites and air pollution mitigation.关键词
污染物浓度/气象条件/空间分布/WRF/CMAQKey words
pollutant concentration/meteorological field/spatial distribution/WRF/CMAQ分类
天文与地球科学引用本文复制引用
王颖,梁依玲,王丽霞..气象条件对污染物浓度分布影响的研究[J].沙漠与绿洲气象,2015,(2):69-74,6.基金项目
自然科学基金资助项目41205077；兰州大学中央高校基本科研业务费专项资金资助:861450。 （）
