Open AccessEstimación de la severidad en incendios forestales a partir de datos LiDAR-PNOA y valores de Composite Burn Index
Author(s) -
Antonio Luis Montealegre,
María Teresa Lamelas,
Mihai A. Tanase,
Juan de la Riva
Publication year - 2017
Publication title -
revista de teledetección
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.271
H-Index - 9
eISSN - 1988-8740
pISSN - 1133-0953
DOI - 10.4995/raet.2017.7371
Subject(s) - lidar , environmental science , forestry , geography , mediterranean climate , canopy , remote sensing , physical geography , cartography , archaeology
Mediterranean pine forests in Spain experience wildland fire events with different frequencies, intensities, and severities. An estimation of the fire severity as accurate as possible is required by forest managers to decide which strategy is most appropriate to mitigate the effect of fire. The aim of this research is to estimate the post-fire severity, relating a pool of independent variables derived from the LiDAR (Light Detection And Ranging) points clouds delivered by the National Plan for Aerial Orthophotography (PNOA) to field data based on Composite Burn Index collected in four fires located in Aragón (Spain). Logistic regression models were developed and statistically tested and validated to map fire severity with up to 85.5% accuracy. The canopy relief ratio and the percentage of all returns above one meter height were the most significant variables. In addition, the obtained results are compared to different spectral indices derived from Landsat Thematic Mapper