Mobile DOAS Observations of Tropospheric NO2 Using an UltraLight Trike and Flux Calculation
AbstractIn this study, we report on airborne Differential Optical Absorption Spectroscopy (DOAS) observations of tropospheric NO2 using an Ultralight Trike (ULT) and associated flux calculations. The instrument onboard the ULT was developed for measuring the tropospheric NO2 Vertical Column Density (VCD) and it was operated for several days between 2011 and 2014, in the South-East of Romania. Collocated measurements were performed using a car-DOAS instrument. Most of the airborne and mobile ground-based measurements were performed close to an industrial platform located nearby Galati city (45.43° N, 28.03° E). We found a correlation of R = 0.71 between tropospheric NO2 VCDs deduced from airborne DOAS observations and mobile ground-based DOAS observations. We also present a comparison between stratospheric NO2 Slant Column Density (SCD) derived from the Dutch OMI NO2 (DOMINO) satellite data product and stratospheric SCDs obtained from ground and airborne measurements. The airborne DOAS observations performed on 13 August 2014 were used to quantify the NO2 flux originating from an industrial platform located nearby Galati city. Measurements during a flight above the industrial plume showed a maximum tropospheric NO2 VCD of (1.41 ± 0.27) × 1016 molecules/cm2 and an associated NO2 flux of (3.45 ± 0.89) × 10−3 kg/s. View Full-Text
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Constantin, D.-E.; Merlaud, A.; Voiculescu, M.; Dragomir, C.; Georgescu, L.; Hendrick, F.; Pinardi, G.; Van Roozendael, M. Mobile DOAS Observations of Tropospheric NO2 Using an UltraLight Trike and Flux Calculation. Atmosphere 2017, 8, 78.
Constantin D-E, Merlaud A, Voiculescu M, Dragomir C, Georgescu L, Hendrick F, Pinardi G, Van Roozendael M. Mobile DOAS Observations of Tropospheric NO2 Using an UltraLight Trike and Flux Calculation. Atmosphere. 2017; 8(4):78.Chicago/Turabian Style
Constantin, Daniel-Eduard; Merlaud, Alexis; Voiculescu, Mirela; Dragomir, Carmelia; Georgescu, Lucian; Hendrick, Francois; Pinardi, Gaia; Van Roozendael, Michel. 2017. "Mobile DOAS Observations of Tropospheric NO2 Using an UltraLight Trike and Flux Calculation." Atmosphere 8, no. 4: 78.
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