Solar radiation has a spectral, or wavelength, distribution that corresponds, roughly, to a black body curve of the sun's surface temperature. A black body curve graphically represents radiation coming from a "perfect" emitter across a range of wavelengths, based on temperature. Short wavelength radiation has a higher energy than long-wavelength radiation. | Solar radiation has a spectral, or wavelength, distribution that corresponds, roughly, to a black body curve of the sun's surface temperature. A black body curve graphically represents radiation coming from a "perfect" emitter across a range of wavelengths, based on temperature. Short wavelength radiation has a higher energy than long-wavelength radiation. |