Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/6998
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dc.contributor.authorBarros, Ana M.G.-
dc.contributor.authorPereira, J.M.C.-
dc.contributor.authorMoritz, Max A.-
dc.contributor.authorStephens, Scott L.-
dc.date.accessioned2014-07-25T16:14:23Z-
dc.date.available2014-07-25T16:14:23Z-
dc.date.issued2013-
dc.identifier.citation"Forests". ISSN 1999-4907. 4 (2013) 197-217por
dc.identifier.urihttp://hdl.handle.net/10400.5/6998-
dc.description.abstractUsing 100 years of fire perimeter maps, we investigate the existence of geographical patterns in fire orientation across California. We computed fire perimeter orientation, at the watershed level, using principal component analysis. Circular statistics were used to test for the existence of preferential fire perimeter orientations. Where perimeters displayed preferential orientation, we searched for evidence of orographic channeling by comparing mean fire orientation with watershed orientation. Results show that in California, 49% of the burnt area is associated with watersheds, where fires displayed preferential orientation. From these, 25% of the burnt area is aligned along the NE/SW orientation and 18% in the E/W orientation. In 27 out of 86 watersheds with preferential fire alignment, there is also correspondence between mean fire orientation and watershed orientation. Topographic influence on fire spread and dominant wind patterns during the fire season can account for the consistency in fire perimeter orientation in these regions. Our findings highlight the historical pattern of fire perimeter orientation and identify watersheds with potential orographic channelingpor
dc.description.sponsorshipThis paper was supported by the Fundação para a Ciência e Tecnologia Ph.D. Grant SFRH/BD/40398/2007. JMCP participated in this research under the framework of research projects “Forest fire under climate, social and economic changes in Europe, the Mediterranean and other fire-affected areas of the world (FUME)”, EC FP7 Grant Agreement No. 243888.por
dc.language.isoengpor
dc.rightsopenAccesspor
dc.subjectwildfire perimeter orientationpor
dc.subjectorographic channelingpor
dc.subjectcircular statisticspor
dc.subjectCaliforniapor
dc.subjectwatershedpor
dc.titleSpatial characterization of wildfire orientation patterns in Californiapor
dc.typearticlepor
degois.publication.titleForestspor
dc.relation.publisherversionwww.mdpi.com/journal/forestspor
dc.peerreviewedyespor
dc.identifier.doi10.3390/f4010197-
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