from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a body that radiates energy having a blackbody distribution reduced by a constant factor


Sorry, no etymologies found.


  • This is a major problem with applying the the graybody Stefan-Boltzman approach to an object that is not a graybody.

    Monbiot v Monckton « Climate Audit

  • Earth is not a graybody, effects at specific narrow wavelength bands are important, heat transport and altitude effects matter, the surface is not the top of atmosphere, and so on – so it is not appropriate to ignore all this and rely on SB for calculations of surface temperatures.

    Gore Gored: Monckton replies « Climate Audit

  • For a graybody one adds an emissivity term, and for a real body one adds a wavelength or frequency subscript to the emissivity term and accounts for the fraction of radiation output in the range of interest.



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