Articles | Volume 14, issue 5
Atmos. Meas. Tech., 14, 3319–3331, 2021
Atmos. Meas. Tech., 14, 3319–3331, 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 et al.

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Cited articles

Bass, A. M. and Paur, R. J.: The ultraviolet cross-sections of ozone, I – The measurements, II – Results and temperature dependence, in: Atmospheric Ozone, edited by: Zerefos, C. S. and Ghazi, A., Springer, Dordrecht, The Netherlands, 606–616,, 1985. a, b, c
Bernhard, G., Evans, R. D., Labow, G. J., and Oltmans, S. J.: Bias in Dobson total ozone measurements at high latitudes due to approximations in calculations of ozone absorption coefficients and air mass, J. Geophys. Res.-Atmos., 110, D10305,, 2005. a
Birk, M. and Wagner, G.: ESA SEOM-IAS – Measurement and ACS database O3 UV region, Version I, [Data set], Zenodo,, 2018. a, b
Bodhaine, B. A., Wood, N. B., Dutton, E. G., and Slusser, J. S.: On Rayleigh Optical Depth Calculations, J. Atmos. Ocean. Tech., 16, 1854–1861, 1999. a, b, c, d, e, f
Brion, J., Chakir, A., Daumont, D., Malicet, J., and Parisse, C.: High-resolution laboratory absorption cross section of O3, Temperature effect, Chem. Phys. Lett., 213, 610–612, 1993. a
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.