Thermal map of fissure system and lava flows

This thermal map shows the fissure system and lava flows as of 06:45 am on Tuesday, May 22. The primary lava flow originates from Fissure 22, but a new flow has been active over the past day from the Fissure 6 area. The black and white area is the extent of the thermal map. Temperature in the thermal image is displayed as gray-scale values, with the brightest pixels indicating the hottest areas. The thermal map was constructed by stitching many overlapping oblique thermal images collected by a handheld thermal camera during a helicopter overflight of the flow field. The base is a copyrighted color satellite image (used with permission) provided by Digital Globe.