Articles | Volume 10, issue 12
Research article
05 Dec 2017
Research article |  | 05 Dec 2017

A more representative “best representative value” for daily total column ozone reporting

Andrew R. D. Smedley, John S. Rimmer, and Ann R. Webb

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Cited articles

Bailey, T. C. and Gatrel, A. C.: Interactive spatial data analysis, Addison-Wesley, 1995.
Brewer, A. W.: A replacement for the Dobson spectrophotometer? Pure Appl. Geophys., 106–108, 919–927,, 1973.
Fioletov, V. E., Kerr, J. B., McElroy, C. T., Wardle, D. I., Savastiouk, V., and Grajnar, T. S.: The Brewer reference triad, Geophys. Res. Lett., 32, L20805,, 2005.
Fioletov, V. E., McLinden, C. A., McElroy, C. T., and Savastiouk, V.: New method for deriving total ozone from Brewer zenith sky observations, J. Geophys. Res.-Atmos., 116, 1–10,, 2011.
Karppinen, T., Redondas, A., García, R. D., Lakkala, K., McElroy, C. T., and Kyrö, E.: Compensating for the effects of stray light in single-monochromator Brewer spectrophotometer ozone retrieval, Atmos. Ocean, 53, 66–73,, 2015.
Short summary
Long-term trends of total column ozone and assessments of its recovery are underpinned by daily “best representative values” from Brewer spectrophotometers and other ground-based instruments. However, the current calculation of these best representative values often rejects otherwise useful data and has deficiencies during partly cloudy days. We propose a new methodology that takes into account all valid data and accounts for unevenly spaced observations and their uncertainties.