edu.ucar.opensky::articles:26004 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:56:28.592907 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7639tnw https://doi.org/10.1594/PANGAEA.56077 https Related Dataset #1 ATM aerosol concentrations around the GISP ice core site https://doi.org/10.5281/zenodo.5752566 https Related Software #1 AirChem/F0AM: v4.2.1 with Zenodo DOI Emission factors and evolution of SO2 measured from biomass burning in wildfires and agricultural fires 2022-12-13T00:00:00Z publication https://n2t.org/ark:/85065/d7639tnw https://doi.org/10.5194/acp-22-15603-2022 Rickly, P. S. author Guo, H. author Campuzano-Jost, P. author Jimenez, J. L. author Wolfe, G. M. author Bennett, R. author Bourgeois, I. author Crounse, J. D. author Dibb, J. E. author DiGangi, J. P. author Diskin, G. S. author Dollner, M. author Gargulinski, E. M. author Hall, Samuel R. author Halliday, H. S. author Hanisco, T. F. author Hannun, R. A. author Liao, J. author Moore, R. author Nault, B. A. author Nowak, J. B. author Peischl, J. author Robinson, C. E. author Ryerson, T. author Sanchez, K. J. author Schöberl, M. author Soja, A. J. author St. Clair, J. M. author Thornhill, K. L. author Ullmann, K. author Wennberg, P. O. author Weinzierl, B. author Wiggins, E. B. author Winstead, E. L. author Rollins, A. W. author UCAR/NCAR - Library publisher Fires emit sufficient sulfur to affect local and regional air quality and climate. This study analyzes SO2 emission factors and variability in smoke plumes from US wildfires and agricultural fires, as well as their relationship to sulfate and hydroxymethanesulfonate (HMS) formation. Observed SO2 emission factors for various fuel types show good agreement with the latest reviews of biomass burning emission factors, producing an emission factor range of 0.47-1.2 g SO2 kg(-1) C. These emission factors vary with geographic location in a way that suggests that deposition of coal burning emissions and application of sulfur-containing fertilizers likely play a role in the larger observed values, which are primarily associated with agricultural burning. A 0-D box model generally reproduces the observed trends of SO2 and total sulfate (inorganic + organic) in aging wildfire plumes. In many cases, modeled HMS is consistent with the observed organosulfur concentrations. However, a comparison of observed organosulfur and modeled HMS suggests that multiple organosulfur compounds are likely responsible for the observations but that the chemistry of these compounds yields similar production and loss rates as that of HMS, resulting in good agreement with the modeled results. We provide suggestions for constraining the organosulfur compounds observed during these flights, and we show that the chemistry of HMS can allow organosulfur to act as an S(IV) reservoir under conditions of pH > 6 and liquid water content > 10(-7) g sm(-3). This can facilitate long-range transport of sulfur emissions, resulting in increased SO2 and eventually sulfate in transported smoke. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation