6533b833fe1ef96bd129b630
RESEARCH PRODUCT
Mapping sub-pixel burnt percentage using AVHRR data. Application to the Alcalaten area in Spain
J. CuencaV. HidalgoAna B. RuescasCristian MattarJuan C. Jiménez-muñozJosé A. SobrinoGuillem SoriaYves JulienM. AtitarBelen Franchsubject
Mediterranean climateRadiometerPixelMean squared errorAdvanced very-high-resolution radiometerGeneral Earth and Planetary SciencesEnvironmental scienceHyperspectral imagingScale (map)CartographyNormalized Difference Vegetation IndexRemote sensingdescription
The purpose of this work is to estimate at sub-pixel scale the percentage of burnt land using the Advanced Very High Resolution Radiometer AVHRR through a simple approach. This methodology is based on multi-temporal spectral mixture analysis MSMA, which uses a normalized difference vegetation index NDVI and a land-surface temperature LST image as input bands. The area of study is located in the Alcalaten region in Castellon Spain, a typical semi-arid Mediterranean region. The results have shown an extension of approximately 55 km2 affected by fire, which is only 5% lower than the statistic reports provided by the Environmental Ministry of Spain. Finally, we include a map of the area showing the percentage of estimated burnt area per pixel and its associated uncertainties. The map was validated through supervised classification of an Airborne Hyperspectral Sensor AHS image taken on 27 September 2007. Results have a high accuracy, with a mean error of 6.5%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-10-20 | International Journal of Remote Sensing |