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Emissions of Trace Gases and Particles from Savanna Fires in Southern AfricaAirborne measurements made on initial smoke from 10 savanna fires in southern Africa provide quantitative data on emissions of 50 gaseous and particulate species, including carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen oxides, methane, ammonia, dimethyl sulfide, nonmethane organic compounds, halocarbons, gaseous organic acids, aerosol ionic components, carbonaceous aerosols, and condensation nuclei (CN). Measurements of several of the gaseous species by gas chromatography and Fourier transform infrared spectroscopy are compared. Emission ratios and emission factors are given for eight species that have not been reported previously for biomass burning of savanna in southern Africa (namely, dimethyl sulfide, methyl nitrate, five hydrocarbons, and particles with diameters from 0.1 to 3 microns). The emission factor that we measured for ammonia is lower by a factor of 4, and the emission factors for formaldehyde, hydrogen cyanide, and CN are greater by factors of about 3, 20, and 3 - 15, respectively, than previously reported values. The new emission factors are used to estimate annual emissions of these species from savanna fires in Africa and worldwide.
Document ID
20050177232
Acquisition Source
Headquarters
Document Type
Abstract
External Source(s)
Authors
Sinha, Parikhit
(Washington Univ. Seattle, WA, United States)
Hobbs, Peter V.
(Washington Univ. Seattle, WA, United States)
Yokelson, Robert J.
(Montana Univ. Missoula, MT, United States)
Bertschi, Isaac T.
(Montana Univ. Missoula, MT, United States)
Blake, Donald R.
(California Univ. Irvine, CA, United States)
Simpson, Isobel J.
(California Univ. Irvine, CA, United States)
Gao, Song
(Washington Univ. Seattle, WA, United States)
Kirchstetter, Thomas W.
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Novakov, Tica
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Journal of Geophysical Research
Publisher: American Geophysical Union
Volume: 108
Issue: D13
ISSN: 0148-0227
Subject Category
Geophysics
Report/Patent Number
ISSN: 0148-0227
Funding Number(s)
CONTRACT_GRANT: NAG5-9022
Distribution Limits
Public
Copyright
Other

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