http://www.cnr.it/ontology/cnr/individuo/prodotto/ID76992

Fuel consumption and smoke characterization in Mediterranean ecosystem using FOFEM 5. (Contributo in atti di convegno)

Type

Prodotto della ricerca (Classe)
Contributo in atti di convegno (Classe)

Label

Fuel consumption and smoke characterization in Mediterranean ecosystem using FOFEM 5. (Contributo in atti di convegno) (literal)

Anno

2010-01-01T00:00:00+01:00 (literal)

Alternative label

Bacciu V., Salis M., Chergia AP, Spano D, Pellizzaro G., Arca B., Duce P. (2010)
Fuel consumption and smoke characterization in Mediterranean ecosystem using FOFEM 5.
in VI International Conference on Forest Fire Research, Coimbra Portugal, 15-18 November 2010
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Bacciu V., Salis M., Chergia AP, Spano D, Pellizzaro G., Arca B., Duce P. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

VI International Conference on Forest Fire research (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Euro-Mediterranean Center for Climate Changes, IAFENT Division, Sassari, Italy; Department of Economics and Woody Plants Systems (DESA), University of Sassari, Italy; Department of Economics and Woody Plants Systems (DESA), University of Sassari, Italy; Department of Economics and Woody Plants Systems (DESA), University of Sassari, Italy; National Council of Research, Institute of Biometeorology (CNR-IBIMET), Sassari, Italy; National Council of Research, Institute of Biometeorology (CNR-IBIMET), Sassari, Italy; National Council of Research, Institute of Biometeorology (CNR-IBIMET), Sassari, Italy (literal)

Titolo

Fuel consumption and smoke characterization in Mediterranean ecosystem using FOFEM 5. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

978-989-20-2157-7 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriVolume

Domingos Xavier Vegas (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume

Domingos Xavier Vegas (literal)

Abstract

Emissions from biomass burning include a wide range of gaseous compounds and particles that contribute significantly to the atmospheric budgets at local, regional, and even global scale. The amount of some atmospheric pollutants has proven to be comparable to that from the fossil fuel combustion. In addition, biomass burning is a considerable source of chemically active gases such as nitric oxide, carbon monoxide and volatile organic compounds (VOC). Vegetation fire emissions (VFE) are recognized to be an important public health and environment issue. In the last decade, several experimental and modeling studies were conducted to improve our knowledge of the atmospheric impact of vegetation fires. To estimate the potential impacts of VFE, it is necessary to describe and quantify the emissions. Information is needed on the burned area, the amount, type, and conditions of fuel material per unit area, the burn period, and the emission factors for each specific pollutant. The estimates of VFE are affected by several errors and uncertainties. However, the largest errors depend on the determination of both fuel properties and fuel amounts consumed during the combustion. Since its variability can influence fire effects through fuel characteristics, spatial location of fire events seems to have a crucial role. Current VFE inventory methods use the amount of burned biomass and the emission factors associated with each specific chemical species, according to the equation first proposed by Seiler and Crutzen (1980). However, several authors pointed out that improvements of emission estimates are possible when the amount of fuel consumption in the flaming and smoldering combustion period is known. To improve the estimates of total emissions produced from wildland fire, the First Order Fire Effects Model (FOFEM) of Reinhardt et al. (1997) was based on this approach. Woody fuel consumption is simulated using the BURNUP physical model that provides separate estimates of flaming and smoldering consumption and their relative particulate and chemical species emissions. In this study, we explored the usefulness of this model to estimate the type and quantity of Mediterranean VFE from fires observed in Sardinia (Italy) during the 2007 and 2008 seasons. In order to reduce bias in predicting and quantifying the source and the composition of fire emissions and achieve realistic VFE estimates, particular attention was paid to develop and survey comprehensive and accurate data inputs. FOFEM input fuel load data, for several fuel types, were surveyed to represent those combusted. Fuel maps relative to preburn vegetation were developed from the supervised classification of the 1:25,000 land cover map. Data relative to fire perimeters, fire weather data, and fire behaviour were gathered by the Sardinian Forestry Corps (SFC). The results showed the crucial importance of appropriate fuel and fire data and maps to attain reasonable simulations of fuel consumption and smoke emissions. The FOFEM outputs and the derived smoke emission maps are useful for several applications including emissions inventories, air quality management plans, and emission source models coupled with dispersion models and decision support systems. (literal)

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