Design And Application Of Air Pollution Monitoring Platform Based On Unmanned Aerial Vehicle

China's accelerating urbanization makes city's motor vehicle ownership and industrial energy consumption increase rapidly.Multiple pollution sources makes the regional combined pollution,inducing serious haze pollution events which impact on people's lives and health.Fine particulate matter(PM_2.5),as one of the major pollutants in the atmospheric pollution,has attracted much attention and research in its formation and diffusion mechanism.The traditional ground monitoring system and conventional atmospheric monitoring methods have many problems,such as high experiment cost,poor maneuverability,which limited spatial measurement range,and high resolution data sampling in the atmospheric boundary layer and the lower troposphere.This dissertation illustrates the air pollution monitoring platform based on a fixed-wing unmanned aerial vehicle?UAV?and mobile portable monitoring equipments,aiming at researching the temporal and spatial distribution of fine particles in the atmospheric boundary layer?ABL?and the lower troposphere.In order to reduce the intake loss of mobile portable equipment under airborne condition,a preliminary hydrodynamics analysis and wind tunnel experiment were carried out.The UAV monitoring platform was compared with the tethered balloon monitoring platform in the Fengxian area of Shanghai.Based on the comparison of monitoring equipment and monitoring platform,it is shown that UAV monitoring platform can monitor the spatiotemporal distribution of fine particles below1000 m,which has high reliability,experimental accuracy and data spatial resolution.The temporal and spatial distribution of fine particles in the atmosphere background of the Yangtze River Delta was observed by the UAV monitoring platform in Lin'an.The horizontal and vertical distributions of300-1000 m high-altitude fine particles on the non-haze day and haze day were selected and analyzed respectively.The HYSPLIT model was used to analyze the external sources of atmospheric background in the Yangtze River Delta.Which indicates that the external pollution transportation from North China contributes greatly to the atmospheric background in the Yangtze River Delta.