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IEVref:845-24-087ID:
Language:enStatus: Standard
Term: spectral optical thickness, <of a medium>
Synonym1: spectral optical depth, <of a medium>
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Symbol: δ(λ)
Definition: integral of the spectral linear attenuation coefficient, μ(x, λ), of the medium between the points x1 and x2, as given by the equation

δ(λ)=x2∫x1μ(x,λ) dx

Note 1 to entry: The spectral optical thickness is used in atmospheric physics and physical oceanography.

Note 2 to entry: The spectral optical thickness has unit one.

Note 3 to entry: This entry was numbered 845-04-80 in IEC 60050-845:1987.


Publication date:2020-12
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