Profiling Dust Mass Concentration in Northwest China Using a Joint Lidar and Sun-Photometer Setting
نویسندگان
چکیده
The satellite-based estimation of the dust mass concentration (DMC) is essential for accurately evaluating global biogeochemical cycle aerosols. As uncertainties in estimating DMC caused by mixing and pollutants assuming a fixed value extinction efficiency (MEE), classic lidar-photometer method employed to identify separate from pollutants, obtain MEE, evaluate effect above uncertainties, during five field experiments Northwest China. Our results show that this effective continental aerosol mixtures consisting pollutants. It also seen loading mainly occurred free troposphere (<6 km), with average 905 ± 635 µg m?2 trapped planetary boundary layer. MEE ranges 0.30 0.60 m2 g?1 has significantly negative relationship size particles. With assumption 0.37 (0.60) g?1, shown be overestimated (underestimated) 20–40% (15–30%). In other words, our suggest change particles should considered DMC.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2021
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs13061099