opaque sky cover

opaque sky cover

[ō′pāk ′skī ‚kəv·ər]
(meteorology)
In United States weather observing practice, the amount (in tenths) of sky cover that completely hides all that might be above it; opposed to transparent sky cover.
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References in periodicals archive ?
The formula of the correction factor is a function of opaque sky cover N where N equals 0 for clear sky and 10 for overcast sky.
ss] = view factor with respect to sky H = relative humidity, % M = roof multiple layers N = opaque sky cover [K.