Above: each side by side image roughly represents 1500 feet wide (3000 combined), and 2000 feet tall. On the left is a daytime visual image of piping infrastructure and the right is a nighttime infrared thermal image. In the center of the infrared picture you can see what appears to be a white cloud, and another white cloud just below that. These cloud-like areas are thermal expressions and a good area for a geologist to investigate. In this infrared image, white is hot and black is cold.  Infrared sample mosaic created using 23 individual images at 1:2000 scale.