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Effect of Atmospheric Temperature Variations on Total Ozone Measured with a Brewer MKII Spectrophotometer at Thessaloniki

  • K. Fragkos
  • A. F. Bais
  • C. Meleti
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

The effect of atmospheric temperature and ozone profiles on the total ozone column (TOC) measurements of a Brewer spectrophotometer operating at Thessaloniki is investigated. The standard retrieval algorithm does not account for the temperature dependence of the ozone cross sections producing a bias in the measured TOC. The effect on TOC depends on the vertical profiles of temperature and ozone. For the Brewer at Thessaloniki, the temperature dependence of the instrument dependent effective ozone absorption coefficient ranges between 0.09%/°C and 0.13%/°C, resulting in up to 2% error in TOC. The marked annual variability of stratospheric temperature introduces an artificial annual cycle in the measured TOC. Removal of these effects improves the accuracy of TOC measurements at Thessaloniki.

Keywords

Ozone Absorption Total Ozone Column Differential Optical Absorption Spectroscopy Ozone Profile Ozone Depletion Substance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors acknowledge the Atmospheric Soundings portal of the University of Wyoming (http://weather.uwyo.edu/upperair/sounding.html) for providing the radiosonde data and the TOMS GSFC NASA science team for the LLM ozone climatology (ftp://toms.gsfc.nasa.gov/pub/ML_climatology/).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Laboratory of Atmospheric PhysicsAristotle University of ThessalonikiThessalonikiGreece

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