The optical window is the portion of the optical spectrum that is not blocked by the Earth's atmosphere. The window runs from around 300 nanometers (ultraviolet-B) up into the range the human eye can detect, roughly 400–700 nm and continues up to approximately 2 μm.[1][2] Sunlight mostly reaches the ground through the optical atmospheric window;[3][4] the Sun is particularly active in most of this range (44% of the radiation emitted by the Sun falls within the visible spectrum and 49% falls within the infrared spectrum).[5]
- ^ Dwivedi, Ravi Shankar (2017). Remote Sensing of Soils. Springer. p. 13. ISBN 978-3-662-53740-4. OCLC 959595730.
- ^ Thorne, Anne P. (2012). Spectrophysics. Springer Science & Business Media. p. 3. ISBN 978-94-009-1193-2. OCLC 906664124.
- ^ Fluorocarbons, Environmental and Health Implications: Environmental Impact Statement. Food and Drug Administration. 1978. p. 79. OCLC 4611045.
- ^ Stergis, Christos G. (1966). Rayleigh Scattering in the Upper Atmosphere. Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force. p. 273. OCLC 1037802615.
- ^ "Climate Science Investigations South Florida - Energy: The Driver of Climate". www.ces.fau.edu. Retrieved 2021-12-26.