Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4203–4217, 2021
https://doi.org/10.5194/amt-14-4203-2021
Atmos. Meas. Tech., 14, 4203–4217, 2021
https://doi.org/10.5194/amt-14-4203-2021
Research article
07 Jun 2021
Research article | 07 Jun 2021

Quality assessment of Dobson spectrophotometers for ozone column measurements before and after automation at Arosa and Davos

René Stübi et al.

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Latest update: 08 Aug 2022
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Short summary
Total ozone column has been measured since 1926 in the Swiss Alps station Arosa. These worldwide series are based on Dobson sun spectrophotometers. To assure the continuity of these series, a two-stage project was realized at MeteoSwiss: first, Dobson instruments were automated, and then parallel measurements between Arosa and a nearby site in Davos were carried out. The analysis of the data of the manual-to-automated transition and coincident data between the two sites are presented here.