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This page contains images of old lecture notes. Please read through them in order. You are expected to be able to correctly explain why the sky is blue, why clouds are white, why the sun appears to be red near sunrise and sunset, and how aerosols (haze) limit visibility.
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Another diagram describing the scattering of light by the gases in the atmosphere is provided in this link.
WORD document containing additional notes on blue sky, red sunrise and sunset, and haze
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