Articles | Volume 17, issue 8
https://doi.org/10.5194/amt-17-2277-2024
https://doi.org/10.5194/amt-17-2277-2024
Research article
 | 
18 Apr 2024
Research article |  | 18 Apr 2024

The transition to new ozone absorption cross sections for Dobson and Brewer total ozone measurements

Karl Voglmeier, Voltaire A. Velazco, Luca Egli, Julian Gröbner, Alberto Redondas, and Wolfgang Steinbrecht

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Cited articles

Bais, A. F., Zerefos, C. S., and McElroy, C. T.: Solar UVB measurements with the double- and single-monochromator Brewer ozone spectrophotometers, Geophys. Res. Lett., 23, 833–836, https://doi.org/10.1029/96GL00842, 1996. 
Bak, J., Liu, X., Birk, M., Wagner, G., Gordon, I. E., and Chance, K.: Impact of using a new ultraviolet ozone absorption cross-section dataset on OMI ozone profile retrievals, Atmos. Meas. Tech., 13, 5845–5854, https://doi.org/10.5194/amt-13-5845-2020, 2020. 
Basher, R. E.: Review of the Dobson spectrophotometer and its accuracy, WMO Global Ozone Research and Monitoring, Report no. 13, Geneva, Switzerland, https://gml.noaa.gov/ozwv/dobson/papers/report13/report13.html (last access: 11 April 2024), 1982. 
Bass, A. M. and Paur, R. J.: The Ultraviolet Cross-Sections of Ozone: I. The Measurements, 606–610, edited by:: Zerefos, C. S. and Ghazi, A., in: Atmospheric Ozone, Springer, Dordrecht, https://doi.org/10.1007/978-94-009-5313-0_120, 1985 
Bates, D. R.: Rayleigh scattering by air, Planet. Space Sci., 32, 785–790, https://doi.org/10.1016/0032-0633(84)90102-8, 1984. 
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Short summary
Comparison between total ozone column (TOC) measurements from ground-based Dobson and Brewer spectrophotometers generally reveals seasonally varying differences of a few percent. This study recommends a new TOC retrieval approach, which effectively eliminates these seasonally varying differences by applying new ozone absorption cross sections, appropriate slit functions for the Dobson instrument, and climatological values for the effective ozone temperature.
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