A224-0013
Non-methane organic and nitrogen emissions from wildfire plumes during FIREX-AQ
Wednesday, 16 December 2020
Poster
Matthew Mitchell Coggon1, Georgios Gkatzelis2, Kanako Sekimoto3, Jessica Gilman4, Aaron Lamplugh5, Ilann Bourgeois6, Jeff Peischl5, Thomas B Ryerson7, Patrick R Veres8, J A Neuman9, Caroline Womack10, Steven S Brown4, Andrew W Rollins10, Pamela Rickly10, Megan Bela11, Rebecca Schwantes12, Joseph M Katich13, Jakob Lindaas14, Jose L Jimenez15, Pedro Campuzano Jost16, Hongyu Guo15, Benjamin A Nault15, Demetrios Pagonis15, Melinda Schueneman15, Doug A Day15, Armin Wisthaler17, Felix Piel17, Laura Tomsche18, Tomas Mikoviny17, Johnathan W Hair19, Taylor J Shingler19, Marta A Fenn19, Vanessa Selimovic20, L Gregory Huey21, Yi Ji22, Young Ro Lee22, David Tanner21, John B Nowak19, Joshua P DiGangi19, Hannah S Halliday19,23, Glenn S Diskin24, Alan Fried25, Petter Weibring25, Glenn M Wolfe26, Jason M St Clair27, Reem A Hannun28, Jin Liao29, Thomas F Hanisco30, Katherine Travis19, James Roberts8, Michael Trainer31, Joshua Peter Schwarz32, James H Crawford19 and Carsten Warneke5, (1)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (2)NOAA Earth Systems Research Laboratory, Chemical Sciences Division, Boulder, United States, (3)Yokohama CIty University, Graduate School of Nanobioscience, Yokohama, Japan, (4)NOAA Earth System Research Laboratory, Chemical Sciences Laboratory, Boulder, CO, United States, (5)CIRES and NOAA ESRL, Chemical Sciences Laboratory, Boulder, CO, United States, (6)NOAA Chemical Sciences Division, Boulder, CO, United States, (7)NOAA ESRL Chemical Sciences Division, Boulder, CO, United States, (8)NOAA ESRL, Chemical Sciences Laboratory, Boulder, CO, United States, (9)Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA ESRL, Chemical Sciences Laboratory, Boulder, CO, United States, (10)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (11)University of Colorado, Boulder, CO, United States, (12)Cooperative Institute for Research in Environmental Sciences (CIRES) University of Colorado and NOAA ESRL Chemical Sciences Laboratory, Boulder, CO, United States, (13)University of Colorado Cooperative Institute for Research in Environmental Sciences (CIRES) at the NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, United States, (14)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (15)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, CO, United States, (16)University of Colorado Boulder, Boulder, CO, United States, (17)University of Oslo, Department of Chemistry, Oslo, Norway, (18)Max Planck Institute for Chemistry, Mainz, Germany, (19)NASA Langley Research Center, Hampton, VA, United States, (20)University of Montana, Department of Chemistry, Missoula, MT, United States, (21)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (22)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (23)Universities Space Research Association Columbia, Columbia, MD, United States, (24)NASA Langley Research Ctr, Hampton, VA, United States, (25)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (26)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (27)NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Lab, Greenbelt, MD, United States, (28)Harvard Univ/Anderson Group, Cambridge, MA, United States, (29)Universities Space Research Association and NASA Goddard Space Flight Center, Greenbelt, MD, United States, (30)NASA GSFC, Greenbelt, MD, United States, (31)Chemical Sciences Laboratory, NOAA Earth System Research Laboratories, Boulder, CO, United States, (32)NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, United States
Abstract:
Non-methane organic and nitrogen species emitted from wildfire plumes were measured during the NOAA/NASA Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) mission. We report estimated emission factors (EFs) and emission ratios (ERs) to carbon monoxide for hundreds of species in the gas- and particle-phase by using data from aircraft crosswind transects close to the emission source where concentrations are predominantly related to fresh emissions. We compare ERs from different fuel types, and from multiple fire plumes to find that their variability is within a factor of 2 for most non-methane organic emissions. However, enhancement ratios of nitrogen-containing species and black carbon vary by more than a factor of 5 depending predominantly on the fire conditions (flaming vs. smoldering), and fuel type. We find that the sum of the gas-phase volatile organic compound (VOC) mass consistently correlate (R2=0.98) with carbon monoxide for all wildfire plumes indicating that VOC ERs close to a fire plume can be determined if carbon monoxide is measured. Nitrogen-containing species correlate better with black carbon with an R2=0.92. EFs from the FIREX-AQ mission are compared to emissions from controlled burning laboratory experiments during FireLab 2016 to show agreements within a factor of 2 for the majority of individual VOCs. This work provides the basis for updating emission inventories in order to better understand the evolution and fate of organic and nitrogen species downwind of fires.
