IEVref:845-29-111ID:
Language:enStatus: Standard
Term: CIE standard overcast sky
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Definition: completely overcast sky for which the quotient of its luminance, Lγ, in the direction at an angle, γ, above the horizon and its luminance, Lz, at the zenith is given by the relation

L γ L z = 1+2 sinγ 3 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdh9vqqj=hEeea0xXdbb a9frFj0=OqFfea0dXdd9vqaq=JfrVkFHe9pgea0dXdar=Jb9hs0dXd bPYxe9vr0=vr0=vqpWqaaeaaciWacmGadaGadeaaeaGaauaaaOqaam aalaaabaGaamitamaaBaaaleaacqaHZoWzaeqaaaGcbaGaamitamaa BaaaleaacaqG6baabeaaaaGccqGH9aqpdaWcaaqaaGqaaKaaajaa=f dacaWFRaGaa8NmaOGaaGPaVNaaajaa=nhacaWFPbGaa8NBaOGaeq4S dCgabaqcaaKaa83maaaaaaa@46AD@

Note 1 to entry: This entry was numbered 845-09-90 in IEC 60050-845:1987.


Publication date:2020-12
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