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Spectral irradiance is the irradiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength.
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The spectral irradiance as a function of photon wavelength (or energy), denoted by F, is the most common way of characterising a light source.
Solar spectral irradiance (SSI) is the wavelength-dependent energy input to the top of the Earth's atmosphere, at a standard distance of 1 au from the Sun. At ...
The Solar Spectral Irradiance (SSI) Climate Data Record (CDR) measures the solar energy input to the top of the Earth's atmosphere at a given wavelength ...
For radiation incident on a surface, the term spectral irradiance is used, and has the SI unit of [W/m3], or more commonly units of [mW/mm2-nm]. For radiation ...
SPECTRAL DISTRIBUTION. “Spectral” used before the tabulated radiometric quantities implies consideration of the wavelength dependence of the quantity.
Oct 21, 2020 · As you can see, lamps containing different elements give off very different spectra of light.
Irradiance is the amount of energy emitted at each wavelength from a radiant sample such as an LED, a laser or the sun.
Mar 29, 2022 · Solar spectral irradiance (SSI) contains information characterizing the physical, chemical, thermal, and dynamical properties of the solar ...