"The range of wavelengths at which water vapor, carbon dioxide, or other atmospheric gases only slightly absorb radiation. Atmospheric windows allow the Earth's radiation to escape into space unless clouds absorb the radiation." (National Aeronautics and Space Administration, 2014)
"Atmospheric Window". NASA Glenn Research Center, National Aeronautics and Space Administration. Last modified June 12, 2014.
Accessed February 1, 2019.