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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 8
Atmos. Chem. Phys., 6, 2231–2240, 2006
https://doi.org/10.5194/acp-6-2231-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Atmos. Chem. Phys., 6, 2231–2240, 2006
https://doi.org/10.5194/acp-6-2231-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  21 Jun 2006

21 Jun 2006

Detection and measurement of total ozone from stellar spectra: Paper 2. Historic data from 1935–1942

R. E. M. Griffin R. E. M. Griffin
  • Department of Earth and Space Sciences and Engineering, York University, 4700Keele Street, Toronto, ON, M3J 1P3, Canada, and Herzberg Institute forAstrophysics, 5071 West Saanich Road, Victoria, BC, V9E 2E7, Canada

Abstract. Atmospheric ozone columns are derived from historic stellar spectra observed between 1935 and 1942 at Mount Wilson Observatory, California. Comparisons with contemporary measurements in the Arosa database show a generally close correspondence, while a similar comparison with more sparse data from Table Mountain reveals a difference of ~15–20%, as has also been found by other researches of the latter data. The results of the analysis indicate that astronomy's archives command considerable potential for investigating the natural levels of ozone and its variability during the decades prior to anthropogenic interference.

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