Infrared Radiance is the intensity of infrared radiation. In radiometery, radiance refers to measure of the intrinsic radiant intensity emitted by a radiator in a given direction. Radiance is measured in watts per square meter and steradian.
Infrared Radiation refers to that portion of the electromagnetic spectrum lying between visible light and microwaves. The wavelength range is approximately between 720 and 1 mm. In meteorology, this range is often further divided into the solar infrared and terrestrial radiation, with the division occurring around 4 m. Dominant absorbers of infrared radiation include the earth's surface, clouds, water vapor, and carbon dioxide. By Kirchhoff's law, these are also good emitters of infrared radiation. Radiance is a radiometric term for the rate at which radiant energy in a set of directions confined to a unit solid angle around a particular direction is transferred across unit area of a surface (real or imaginary) projected onto this direction.
|(1) Algorithm development ||(4) Cloud typing |
|(2) Nighttime imaging ||(5) Land surface temperatures |
|(3) Target identification ||(6) Fire detection |
Infrared (720 nm - 1 mm)
GES DISC Datasets