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    Título
    Assessment of the influence of biophysical properties related to fuel conditions on fire severity using remote sensing techniques: a case study on a large fire in NW Spain
    Autor
    García Llamas, Paula
    Suárez Seoane, SusanaAutoridad Buleria
    Taboada Palomares, ÁngelaAutoridad Buleria ORCID
    Fernández García, Víctor
    Fernández-Guisuraga, José Manuel
    Fernández Manso, AlfonsoAutoridad Buleria ORCID
    Quintano Pastor, Carmen
    Marcos Porras, Elena MaríaAutoridad Buleria ORCID
    Calvo Galván, María LeonorAutoridad Buleria ORCID
    Facultad/Centro
    Facultad de Ciencias Biologicas y Ambientales
    Área de conocimiento
    Ecologia
    Título de la revista
    International Journal of Wildland Fire
    Número de la revista
    7
    Datos de la obra
    International Journal of Wildland Fire, 2019, vol. 28, n. 7
    Editor
    CSIRO
    Fecha
    2019-06-20
    ISSN
    1049-8001
    Descripción física
    P. 512-520
    Abstract
    This study analyses the suitability of remote sensing data from different sources (Landsat 7 ETM+, MODIS and Meteosat) in evaluating the effect of fuel conditions on fire severity, using a megafire (11 891 ha) that occurred in a Mediterranean pine forest ecosystem (NW Spain) between 19 and 22 August 2012. Fire severity was measured via the delta Normalized Burn Ratio index. Fuel conditions were evaluated through biophysical variables of: (i) the Visible Atmospherically Resistant Index and mean actual evapotranspiration, as proxies of potential live fuel amount; and (ii) Land Surface Temperature and water deficit, as proxies of fuel moisture content. Relationships between fuel conditions and fire severity were evaluated using Random Forest models. Biophysical variables explained 40% of the variance. The Visible Atmospherically Resistant Index was the most important predictor, being positively associated with fire severity. Evapotranspiration also positively influenced severity, although its importance was conditioned by the data source. Live fuel amount, rather than fuel moisture content, primarily affected fire severity. Nevertheless, an increase in water deficit and land surface temperature was generally associated with greater fire severity. This study highlights that fuel conditions largely determine fire severity, providing useful information for defining pre-fire actions aimed at reducing fire effects.
    Materia
    Ecología. Medio ambiente
    Palabras clave
    Evapotranspiration
    Fire effects
    Landsat
    Meteosat
    MODIS
    VARI index
    Idioma
    eng
    Tipo documental
    info:eu-repo/semantics/preprint
    URI
    http://hdl.handle.net/10612/11275
    DOI
    https://doi.org/10.1071/WF18156
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    • Artículos de revista (pre-print) [56]
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