We'd like to thank the National Renewable Energy Laboratory for making available to us their glossary, which is the basis of ours. We've edited and reformatted it, and linked it to our Web pages, and we'll continue to add our own specialized terms, illustrations, and examples. Please note that the Solar Radiation Monitoring Laboratory takes full responsibility for any inaccuracies that may occur. The International Energy Agency , an autonomous agency linked to the Organisation for Economic Co-operation and Development. Solar radiation in the visible region of the solar spectrum to which the human eye responds.
Infrared radiation is associated with heat energy.
This term has been generally replaced by solar irradiance because of the confusion of the word with insulation . Typically, a temperature inversion, or a zone in the atmosphere in which the temperature increases with altitude, instead of the expected decrease. In general, an inversion is any reversal of the normal trend of the property of an atmospheric substance with respect to altitude. An instrument for determining the spectral distribution of irradiance. A light interferometer divides a beam of light into two or more beams and brings the beams back together.