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Representation and evaluation of wildfire propagation simulations

Abstract : This paper provides a formal mathematical representation of a wildfire simulation, reviews the most common scoring methods using this formalism, and proposes new methods that are explicitly designed to evaluate a forest fire simulation from ignition to extinction. These scoring or agreement methods are tested with synthetic cases in order to expose strengths and weaknesses, and with more complex fire simulations using real observations. An implementation of the methods is provided as well as an overview of the software package. The paper stresses the importance of scores that can evaluate the dynamics of a simulation, as opposed to methods relying on snapshots of the burned surfaces computed by the model. The two new methods, arrival time agreement and shape agreement, take into account the dynamics of the simulation between observation times. Although no scoring method is able to perfectly synthesise a simulation error in a single number, the analysis of the scores obtained on idealised and real simulations provides insights into the advantages of these methods for the evaluation of fire dynamics.
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Contributor : Nathalie Gaudechoux Connect in order to contact the contributor
Submitted on : Wednesday, November 13, 2013 - 11:47:18 AM
Last modification on : Friday, January 21, 2022 - 3:19:42 AM

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Jean-Baptiste Filippi, Vivien Mallet, Bahaa Nader. Representation and evaluation of wildfire propagation simulations. International Journal of Wildland Fire, 2014, 23 (1), pp.46-57. ⟨10.1071/WF12202⟩. ⟨hal-00903862⟩



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