Airborne Lidar Monitoring of Fluorescent Dye Particles as a Tracer to Characterize Transport and Dispersion: A Feasibility Study

摘要

The feasibility of using airborne lidar to observe the three-dimensional distribution of fluorescent dye particle (FDP) tracers in long-range atmospheric transport and dispersion studies has been successfully demonstrated in field experiments conducted in the North East U.S. during October 1983. This approach uses a lidar system to excite non-toxic fluorescent dye particles (FDP) released into the atmosphere, and to monitor the emitted fluorescent light. When the lidar receiver is spectrally filtered, the fluorescent light can be detected separately from the elastic backscattered signal by background aerosols. Tests also were made in connection with a power plant plume, convective cumulus clouds in the mixing layer, and a tracer trajectory across Lake Ontario.