Tropospheric haze and colors of the clear daytime sky

(FOV) skylight along sky meridians (i.e., at constant azimuth relative to the sun ϕ rel) in 20 clear daytime skies from 2010 to 2013. Although unrefracted sun elevationsh0 ranged from 3° to 45° for these meridio-nal scans, most were made when h0 ∼30° so that at shared azimuths of ϕ rel 90°, 180°, and 270° their ................
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