outgoing longwave radiation 2020-05-18T21:55:44Z In the Earth's climate system, long-wave radiation involves processes of absorption, scattering, and emissions from atmospheric gases, aerosols, clouds and the surface. terrestrial long-wave flux outgoing long-wave radiation An infrared radiation process which 1) transmits radiant energy has wavelengths between 3.0 and 100 μm, 2) is emitted from a planet and its atmosphere out to space in the form of thermal radiation. up-welling long-wave radiation infrared radiation