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Laboratory investigation of fire radiative energy and smoke aerosol emissions
Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland, USA
Climate and Radiation Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Climate and Radiation Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland, USA
Department of Geography, King's College London, Strand, London, UK
Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, Montana, USA
Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, Montana, USA
Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, Montana, USA
Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, Montana, USA
Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, Montana, USA
Fuel biomass samples from southern Africa and the United States were burned in a laboratory combustion chamber while measuring the biomass consumption rate, the fire radiative energy (FRE) release rate (R fre), and the smoke concentrations of carbon monoxide (CO), carbon dioxide (CO2), and particulate matter (PM). The PM mass emission rate (R PM) was quantified from aerosol optical thickness (AOT) derived from smoke extinction measurements using a custom-made laser transmissometer. The R PM and R fre time series for each fire were integrated to total PM mass and FRE, respectively, the ratio of which represents its FRE-based PM emission coefficient (C e PM). A strong correlation (r 2 = 0.82) was found between the total FRE and total PM mass, from which an average C e PM value of 0.03 kg MJ−1 was calculated. This value agrees with those derived similarly from satellite-borne measurements of R fre and AOT acquired over large-scale wildfires.
Received 30 November 2007; accepted 28 March 2008; published 21 June 2008.
Citation: (2008), Laboratory investigation of fire radiative energy and smoke aerosol emissions, J. Geophys. Res., 113, D14S09, doi:10.1029/2007JD009659.
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