Atmos. Chem. Phys. Discuss., 8, 285-325, 2008
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Comparison of ground-based Brewer and FTIR total O3 monitoring techniques
M. Schneider1, A. Redondas2, F. Hase1, C. Guirado2, T. Blumenstock1, and E. Cuevas2
1IMK-ASF, Forschungszentrum Karlsruhe, Karlsruhe, Germany
2Observatorio Atmosférico de Izaña, Instituto Nacional de Meteorología, Spain

Abstract. We compare the currently most precise, ground-based total O3 measurement techniques: Brewer and FTIR. We give an overview of the similarities and the differences between the measurements and the retrieval approaches of both experiments. By means of coinciding measurements performed at the Atmospheric Observatory of Izaña from 2005 to 2007 we show that the small differences between both techniques are in excellent agreement with the theoretical predictions. Our empirical study confirms that both FTIR and Brewer measurements are able to continuously monitor total O3 amounts with a precision of better than 0.4%.

Citation: Schneider, M., Redondas, A., Hase, F., Guirado, C., Blumenstock, T., and Cuevas, E.: Comparison of ground-based Brewer and FTIR total O3 monitoring techniques, Atmos. Chem. Phys. Discuss., 8, 285-325, doi:10.5194/acpd-8-285-2008, 2008.
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