Wildfire scars, satellite image. North is at top. This is the area around Lake Amadeus (blue/white, upper right), an ephemeral salt lake in the arid outback of Australia's Northern Territory. Areas of scrub have been cleared by wildfires, leaving bare sandy areas (green/yellow). Salt deposits are white, and moister areas are blue. The rippled patterns seen are sand dunes formed by the prevailing winds. This area is in the south-west of the Northern Territory. The area shown in this image is around 60 kilometres wide. The image data includes infrared wavelengths, and was obtained on 3 January 2003, using the ASTER sensor on the Terra satellite.