1. Metr 101-02 Lab #9 Satellite Imagery

2. The visible spectrum covers less than half an octave

3. Blackbody radiation =f(Temperature)

5. Earth’s atmosphere absorbs much infrared radiation

6. Radiation from the sun peaks in the visible part of the spectrum where absorption is low. 0.65  m Radiation from any object near the earth’s temperature peaks in the long infrared where there is another “window.” 10.7  m. Some satellites receive radiation from earth at other IR wavelengths. (3.9, 6.5, & 13.3  m.) The weather satellites we are mainly concerned use visual and IR. See SatellitePowerPoint.ppt