Articles | Volume 14, issue 5
https://doi.org/10.5194/amt-14-3319-2021
https://doi.org/10.5194/amt-14-3319-2021
Research article
 | 
06 May 2021
Research article |  | 06 May 2021

Consistency of total column ozone measurements between the Brewer and Dobson spectroradiometers of the LKO Arosa and PMOD/WRC Davos

Julian Gröbner, Herbert Schill, Luca Egli, and René Stübi

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Latest update: 26 Feb 2024
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Short summary
The world's longest continuous total column ozone time series was initiated in 1926 at the Lichtklimatisches Observatorium (LKO), at Arosa, in the Swiss Alps. The measurements between Dobson and Brewer spectroradiometers have shown seasonal variations of the order of 2 %. The results of the study show that the consistency between the two instrument types can be significantly improved when the ozone cross-sections from Serdyuchenko et al. (2013) and the measured slit functions are used.