D. Nissenbaum, R. Sarafian, E. Windwer, E. Tas, C. C. Womack, S. S. Brown, Y. Rudich
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引用次数: 0
Abstract
We developed and deployed a drone-based air pollution measurement system composed of cost-effective and lightweight sensors. The system generates high-resolution vertical profiles of various pollutants. During campaigns conducted in 2023, we observed a diurnal cycle of ozone and analyzed extreme particulate matter events, including biomass burning and a rapid dust storm. Our analysis reveals consistent ozone depletion near the surface at night, an advection-related “knee” in the ozone vertical profile at ~100 meters, and significant differences in aerosol size distributions between background, biomass burning, and dust events. An ensemble of autoencoder-based deep learning models with prediction heads identified ground data and a novel combined factor as the most predictive variables for the ozone vertical profiles. These findings demonstrate the value of mobile vertical profiling systems for understanding pollutant distributions and tropospheric dynamics, including the distinction between local and regional ozone influences, with potential applications for air quality monitoring.
期刊介绍:
npj Climate and Atmospheric Science is an open-access journal encompassing the relevant physical, chemical, and biological aspects of atmospheric and climate science. The journal places particular emphasis on regional studies that unveil new insights into specific localities, including examinations of local atmospheric composition, such as aerosols.
The range of topics covered by the journal includes climate dynamics, climate variability, weather and climate prediction, climate change, ocean dynamics, weather extremes, air pollution, atmospheric chemistry (including aerosols), the hydrological cycle, and atmosphere–ocean and atmosphere–land interactions. The journal welcomes studies employing a diverse array of methods, including numerical and statistical modeling, the development and application of in situ observational techniques, remote sensing, and the development or evaluation of new reanalyses.