Parameter Tree:
EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE

Definition:
In radiometery, a measure of the intrinsic radiant intensity emitted by
a radiator in a given direction. Radiance is measured in watts per square
meter and steradian. Units: W·sr^−1·m^−2


Reference:
Glossary of Meteorology Online, American Meteorological Society, 2009.
http://amsglossary.allenpress.com/glossary

Remote Sensing: Optics and Optical Systems, Philip N. Slatter, 1980.