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Smoke and fire characteristics for cerrado and deforestation burns in Brazil - BASE-B experimentFive test fires were performed during August and September 1990 in the cerrado (savannalike region) in central Brazil (three fires) and tropical moist forest (two fires) in the eastern Amazon. This paper details the gases released, the ratios of the gases to each other and to particulate matter, fuel loads, and the fraction consumed (combustion factors), and the fire behavior associated with biomass consumption. Models are presented for evaluating emission factors for CH4, CO2, CO, H2, and particles less than 2.5 micron diam (PM2.5) as a function of combustion efficiency. The ratio of carbon released as CO2 (combustion efficiency) for the cerrado fires averaged 0.94 and for the deforestation fires it decreased from 0.88 for the flaming phase to less than 0.80 during the smoldering phase of combustion. For tropical ecosystems, emissions of most products of incomplete combustion are projected to be lower than previous estimates for savanna ecosystems and somewhat higher for fires used for deforestation purposes.
Document ID
19920072845
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ward, D. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Susott, R. A.
(USDA, Forest Service, Missoula MT, United States)
Kauffman, J. B.
(Oregon State University Corvallis, United States)
Babbitt, R. E.
(USDA, Forest Service, Missoula MT, United States)
Cummings, D. L.
(Oregon State University Corvallis, United States)
Dias, B.
(Instituto Brasileiro de Geografia e Estatistica Brasilia, Brazil)
Holben, B. N.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kaufman, Y. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rasmussen, R. A.
(Oregon Graduate Institute Beaverton, United States)
Setzer, A. W.
(INPE Sao Jose dos Campos, Brazil)
Date Acquired
August 15, 2013
Publication Date
September 20, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: D13,
ISSN: 0148-0227
Subject Category
Environment Pollution
Accession Number
92A55469
Distribution Limits
Public
Copyright
Other

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