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www.nat-hazards-earth-syst-sci.net/10/661/2010/
doi:10.5194/nhess-10-661-2010
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Time-clustering investigation of fire temporal fluctuations in Portugal
1Istituto di Metodologie per l'Analisi Ambientale, CNR, Tito (PZ), Italy
2Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
3Departamento de Física, Escola de Ciência e Tecnologia, Universidade de Trás-os-Montes e Alto Douro (DF-ECT UTAD), Vila Real, Portugal
Abstract. Temporal clustering structures were identified and quantified in fire sequences recorded from 1980 to 2005 in Continental Portugal, by using the Allan Factor statistics, a statistical tool suited to reveal clustering behaviour in point processes. The obtained results show the presence of daily and annual periodicities, superimposed onto a scaling behaviour, which features the sequence of wildfires as a fractal time process with a rather high degree of time-clusterization of the events.
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Citation: Telesca, L. and Pereira, M. G.: Time-clustering investigation of fire temporal fluctuations in Portugal, Nat. Hazards Earth Syst. Sci., 10, 661-666, doi:10.5194/nhess-10-661-2010, 2010. Bibtex EndNote Reference Manager XML
