盘锦市一次近地面臭氧污染气团区域移动轨迹研究

基于WRF驱动污染扩散模式混合单粒子拉格朗日综合轨迹模式(HYSPLIT)对盘锦市的臭氧污染气团进行后向轨迹分析,运用层次聚类算法对轨迹聚类,得到气团移动轨迹,识别此次盘锦市臭氧污染的大气污染物气团移动轨迹以西南路、南路为主,污染物可在风场作用下进行区域移动。基于数值模拟再现了盘锦市一次臭氧污染后向轨迹,可为盘锦市的大气污染防治工作、大气区域性联防联控工作提供技术支持。

Based on the WRF-driven pollution dispersion model and the Hybrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)model,backward trajectory analysis was conducted on ozone pollution plumes in Panjin City.Hierarchical clustering algorithm was used to cluster trajectories and obtain the movement path of the pollution plumes.The main movement paths of the atmospheric pollution plumes of the Panjin ozone pollution were identified to be southwest and south roads,and pollutants can move regionally under the influence of the wind field.Based on numerical simulation,the backward trajectories of the Panjin once ozone pollution were reproduced,which can provide technical support for the atmospheric pollution prevention and control and atmospheric regional joint prevention and control in Panjin.