Year: 2009
Type: article
Abstract: . In March 2006 two instrumented aircraft made the first detailed field measurements of biomass burning (BB) emissions in the Northern Hemisphere tropics as part of the MILAGRO project. The aircraft were the National Center for Atmospheric Research C-130 and a University of Montana/US Forest Service Twin Otter. The initial emissions of up to 49 trace gas or particle species were measured from 20 deforestation and crop residue fires on the Yucatan peninsula. This included two trace gases useful as indicators of BB (HCN and acetonitrile) and several rarely, or never before, measured species: OH, peroxyacetic acid, propanoic acid, hydrogen peroxide, methane sulfonic acid, and sulfuric acid. Crop residue fires emitted more organic acids and ammonia than deforestation fires, but the emissions from the main fire types were otherwise fairly similar. The Yucatan fires emitted unusually high amounts of SO2 and particle chloride, likely due to a strong marine influence on this peninsula. As smoke from one fire aged, the ratio ΔO3/ΔCO increased to ~15% in 1×107 molecules/cm3. Thus, more research is needed to understand critical post emission processes for the second-largest trace gas source on Earth. It is estimated that ~44 Tg of biomass burned in the Yucatan in the spring of 2006. Mexican BB (including Yucatan BB) and urban emissions from the Mexico City area can both influence the March–May air quality in much of Mexico and the US.
Authors: R. J. Yokelson, J. D. Crounse, P. F. DeCarlo, T. Karl, S. Urbanski, E. Atlas, T. Campos, Y. Shinozuka, V. Kapustin, A. D. Clarke, A. Weinheimer, D. J. Knapp, D. D. Montzka, J. Holloway, P. Weibring, F. Flocke, W. Zheng, D. Toohey, P. O. Wennberg, C. Wiedinmyer, L. Mauldin, A. Fried, D. Richter, J. Walega, J. L. Jimenez, K. Adachi, P. R. Buseck, S. R. Hall, R. Shetter
Institutions: University of Montana, California Institute of Technology, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Paul Scherrer Institute, NSF National Center for Atmospheric Research, US Forest Service, University of Miami, University of Hawaiʻi at Mānoa, University of Hawaii System, National Oceanic and Atmospheric Administration, NOAA Earth System Research Laboratory, Arizona State University
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDGs: Climate action, Life on land
Open Access status: gold
Estimated APC paid: $1,725
Awards: Field, Laboratory, and Theoretical Study of Soot Aerosol, DEVELOPMENT OF ION CHEMISTRY & AN AIRBORNE INSTRU MENT FOR QUANTIFICATION OF ATMOSPHERIC ACIDS, Collaborative Research: Organic Trace Gas Studies from Whole-Air Sampling of the Impact of Megacities and Intercontinental Transport on Regional and Global Environments, Source Characterization for Megacity Impacts on Regional and Global Environments-Mexico City Pollution Outflow Field Campaign (MIRAGE-Mex City), INTEX-B: REAL-TIME SIZE & COMPOSITION AEROSOL MEASUREMENTS IN THE NASA DC-8,& INTEGRATED DAT, CAREER: Aerosol Properties and Effects through Organic Aerosol Characterization, Integrated Analysis of Multi-Instrument Data, and Aerosol-Cloud Nucleation Closure, Real-Time Size and Composition Aerosol Measurements on the NSF C-130 Aircraft and Integrated Data Analysis
OpenAlex ID: W2069595208