TY  - JOUR
A1  - Hecobian, Arsineh
A1  - Liu, Zhen
A1  - Hennigan, Christopher J.
A1  - Huey, L. Gregory
A1  - Jimenez, Jose Luis
A1  - Cubison, Michael J.
A1  - Vay, Stephanie
A1  - Diskin, Glenn S.
A1  - Sachse, Glen W.
A1  - Wisthaler, Armin
A1  - Mikoviny, Tomas
A1  - Weinheimer, Andrew J.
A1  - Liao, Jin
A1  - Knapp, David J.
A1  - Wennberg, Paul O.
A1  - Kürten, Christoph Andreas
A1  - Crounse, John D.
A1  - St. Clair, Jason M.
A1  - Wang, Yuxuan
A1  - Weber, Rodney J.
T1  - Comparison of chemical characteristics of 495 biomass burning plumes intercepted by the NASA DC-8 aircraft during the ARCTAS/CARB-2008 field campaign
T2  - Atmospheric chemistry and physics, 11.2011, S. 13325-13337
N2  - This paper compares measurements of gaseous and particulate emissions from a wide range of biomass-burning plumes intercepted by the NASA DC-8 research aircraft during the three phases of the ARCTAS-2008 experiment: ARCTAS-A, based out of Fairbanks, Alaska, USA (3 April to 19 April 2008); ARCTAS-B based out of Cold Lake, Alberta, Canada (29 June to 13 July 2008); and ARCTAS-CARB, based out of Palmdale, California, USA (18 June to 24 June 2008). Approximately 500 smoke plumes from biomass burning emissions that varied in age from minutes to days were segregated by fire source region and urban emission influences. The normalized excess mixing ratios (NEMR) of gaseous (carbon dioxide, acetonitrile, hydrogen cyanide, toluene, benzene, methane, oxides of nitrogen and ozone) and fine aerosol particulate components (nitrate, sulfate, ammonium, chloride, organic aerosols and water soluble organic carbon) of these plumes were compared. A detailed statistical analysis of the different plume categories for different gaseous and aerosol species is presented in this paper.

The comparison of NEMR values showed that CH4 concentrations were higher in air-masses that were influenced by urban emissions. Fresh biomass burning plumes mixed with urban emissions showed a higher degree of oxidative processing in comparison with fresh biomass burning only plumes. This was evident in higher concentrations of inorganic aerosol components such as sulfate, nitrate and ammonium, but not reflected in the organic components. Lower NOx NEMRs combined with high sulfate, nitrate and ammonium NEMRs in aerosols of plumes subject to long-range transport, when comparing all plume categories, provided evidence of advanced processing of these plumes.
Y1  - 2011
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/26777
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-267779
SN  - 1680-7324
N1  - © Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 License.
VL  - 11
SP  - 13325
EP  - 13337
PB  - European Geosciences Union
CY  - Katlenburg-Lindau
ER  -