| Visible-light images from weather satellites show smoke from forest fires pouring into the atmosphere. However, smoke and clouds both appear white in the images. Images generated by infrared sensors on satellites show heat. Forest fires appear as bright white heat sources in false-colored infrared images, and clouds appear very dark. Comparing the visible-light and infrared images can help atmospheric scientists identify smoke from forest fires.
Examine the two visible-light images below. Click the button below each image to view the fires in infrared wavelengths.