Percolation in real wildfires

被引:39
作者
Caldarelli, G
Frondoni, R
Gabrielli, A
Montuori, M
Retzlaff, R
Ricotta, C
机构
[1] Univ Roma La Sapienza, INFM, Sez Roma 1, I-00185 Rome, Italy
[2] Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England
[3] Univ Roma La Sapienza, Dipartimento Biol Vegetale, I-00185 Rome, Italy
[4] Univ Trier, Remote Sensing Dept, D-54286 Trier, Germany
来源
EUROPHYSICS LETTERS | 2001年 / 56卷 / 04期
关键词
D O I
10.1209/epl/i2001-00549-4
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 re control might be improved.
引用
收藏
页码:510 / 516
页数:7
相关论文
共 22 条
[1]   FIRE PROPAGATION IN A 2-D RANDOM MEDIUM [J].
ALBINET, G ;
SEARBY, G ;
STAUFFER, D .
JOURNAL DE PHYSIQUE, 1986, 47 (01) :1-7
[2]   Angular structure of lacunarity, and the renormalization group [J].
Ball, RC ;
Caldarelli, G ;
Flammini, A .
PHYSICAL REVIEW LETTERS, 2000, 85 (24) :5134-5137
[3]   FIRE SPREAD AND PERCOLATION MODELING [J].
BEER, T ;
ENTING, IG .
MATHEMATICAL AND COMPUTER MODELLING, 1990, 13 (11) :77-96
[4]   EPIDEMIC MODELS AND PERCOLATION [J].
CARDY, JL ;
GRASSBERGER, P .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1985, 18 (06) :L267-L271
[5]   FIELD THEORETIC FORMULATION OF AN EPIDEMIC PROCESS WITH IMMUNIZATION [J].
CARDY, JL .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1983, 16 (18) :L709-L712
[6]  
Flory P. J. J., 1941, J AM CHEM SOC, V63, P3906
[7]   Molecular size distribution in three dimensional polymers. I. Gelation [J].
Flory, PJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1941, 63 :3083-3090
[8]   Molecular size distribution in three dimensional polymers. II. Trifunctional branching units [J].
Flory, PJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1941, 63 :3091-3096
[9]   Surface hardening and self-organized fractality through etching of random solids [J].
Gabrielli, A ;
Baldassarri, A ;
Sapoval, B .
PHYSICAL REVIEW E, 2000, 62 (03) :3103-3115
[10]  
GABRIELLI A, UNPUB SELF ORGANIZED