10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Measurements of Atmospheric Aerosol Vertical Distribution Using Multi-Rotors Unmanned Aerial Vehicle (UAV) and Portable Aerosol Instruments
ZHIJUN WU, Yishu Zhu, Yong-Hee Park, Kang-Ho An, Min Hu, Peking University, Beijing, China
Abstract Number: 803 Working Group: Low-Cost and Portable Sensors
Abstract The vertical profile of air pollutants near surface boundary layer is rare but indispensable to bridge the gap between Lidar and satellite measurements and to achieve a more comprehensive understanding of the regional transport of air pollutants. This study investigated the vertical profiles of particle number size distributions, soot concentrations, and trace gases concentrations near surface boundary layer using a multi-rotors unmanned aerial vehicle with a scanning mobility particle sizer and optical particle counter (Developed by Hanyang University, Korea), low-cost sensors (alpha-sense), and MA200 (microAeth). Before conducting the measurements, the influences of rotating multi-rotors on the aerosol sampling were tested using flow visualization technique (tuft test). With increasing length of the vertical aerosol inlet, the turbulence caused by rotating multi-rotors became to be weak. The optimized length of the sampling inlet was fixed to be 1.5 meter. The field measurements were carried out in a rural site, located between Beijing and Tianjin cities. The vertical profiles of particle number size distribution, soot particle mass concentration, and meteorological parameters were measured. The preliminary results showed that new particle formation took place a higher latitude associating with an increased ozone concentration. The detail data analysis will be given in the presentation.