During the Sen3Exp campaign to support the development of Sentinel-3, data were collected by aircraft over an area around Fresneda de Altarejos in Spain, which had been burnt by forest fire. This false colour image shows healthy vegetation in red while the burnt area appears black-blue. Bare soil shows up in grey and yellow. The burnt area, which measures about 3 × 5 km, covers most of the image, only the edges appear as healthy vegetation or bare soil.
Three flight lines were flown over the area resulting in a unique dataset comprising hyperspectral data from visible to shortwave infrared plus thermal channels from the aircraft, complemented by Envisat MERIS and AATSR data.