Percolation in real wildfires
Sezione INFM di Roma 1 and Dipartimento di Fisica
Università di Roma "La Sapienza"
P.le A. Moro 2, 00185 Roma, Italy
2 Department of Geography, University of Cambridge Downing Place, Cambridge, CB2 3EN, UK
3 Dipartimento di Biologia Vegetale, Università di Roma "La Sapienza" P.le A. Moro 2, 00185 Roma, Italy
4 Remote Sensing Department, University of Trier Behringstrasse 54286, Trier, Germany
Accepted: 6 September 2001
This paper focuses on the statistical properties of wild-land fires and, in particular, investigates if spread dynamics relates to simple invasion model. The fractal dimension and lacunarity of three fire scars classified from satellite imagery are analysed. Results indicate that the burned clusters behave similarly to percolation clusters on boundaries and look denser in their core. We show that Dynamical Percolation reproduces this behaviour and can help to describe the fire evolution. By mapping fire dynamics onto the percolation models, the strategies for fire control might be improved.
PACS: 05.45.Df – Fractals / 89.60.Ec – Environmental safety / 89.75.Fb – Structures and organization in complex systems
© EDP Sciences, 2001