Articles | Volume 16, issue 20
https://doi.org/10.5194/amt-16-4785-2023
https://doi.org/10.5194/amt-16-4785-2023
Research article
 | 
20 Oct 2023
Research article |  | 20 Oct 2023

A physically based correction for stray light in Brewer spectrophotometer data analysis

Vladimir Savastiouk, Henri Diémoz, and C. Thomas McElroy

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Short summary
This paper describes a way to significantly improve ozone measurements at low sun elevations and large ozone amounts when using the Brewer ozone spectrophotometer. The proposed algorithm will allow more uniform ozone measurements across the monitoring network. This will contribute to more reliable trend analysis and support the satellite validation. This research contributes to better understanding the physics of the instrument, and the new algorithm is based on this new knowledge.