Color and Luminance Asymmetries in the Clear Sky
NAVAL ACADEMY ANNAPOLIS MD
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A long-standing assumption about the clear sky is that its colors and luminances are distributed symmetrically about the principal plane. As useful as this approximation is, our digital-image analyses show that clear-sky color and luminance routinely depart perceptibly from exact symmetry. These analyses reconfirm our earlier measurements with narrow field-of-view spectroradiometers, and they do so with much higher temporal and angular resolution across the entire sky dome.
- Atmospheric Physics