Articles | Volume 24, issue 8
https://doi.org/10.5194/acp-24-5093-2024
https://doi.org/10.5194/acp-24-5093-2024
Research article
 | 
30 Apr 2024
Research article |  | 30 Apr 2024

Analytical approximation of the definite Chapman integral for arbitrary zenith angles

Dongxiao Yue

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Latest update: 08 Mar 2025
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The stunning colors of the sky and clouds result from light scattering in the atmosphere, whose density changes with height. Previously, calculating these colors involves costly, sometimes inaccurate methods. This paper presents a silver bullet: a single elegant formula that simplifies these complex calculations. What is the result? We have faster, more precise predictions of atmospheric colors, from Earth's blue skies and red sunsets to Venus's golden hues.
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