E. Dupuy, et al.
Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)
Atmospheric Chemistry and Physics, 9(2), 287-343, 2009; doi: 10.5194/acp-9-287-2009
O3 18OO2 O18OO O17OO


This paper presents extensive {bias determination} analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: the ACE Fourier Transform Spectrometer (ACE-FTS) and the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (ACE-MAESTRO) instrument. Here we compare the latest ozone data products from ACE-FTS and ACE-MAESTRO with coincident observations from nearly 20 satellite-borne, airborne, balloon-borne and ground-based instruments, by analysing volume mixing ratio profiles and partial column densities. The ACE-FTS version 2.2 Ozone Update product reports more ozone than most correlative measurements from the upper troposphere to the lower mesosphere. At altitude levels from 16 to 44 km, the average values of the mean relative differences are nearly all within +1 to +8%. At higher altitudes (45–60 km), the ACE-FTS ozone amounts are significantly larger than those of the comparison instruments, with mean relative differences of up to +40% (about +20% on average). For the ACE-MAESTRO version 1.2 ozone data product, mean relative differences are within ±10% (average values within ±6%) between 18 and 40 km for both the sunrise and sunset measurements. At higher altitudes (~35–55 km), systematic biases of opposite sign are found between the ACE-MAESTRO sunrise and sunset observations. While ozone amounts derived from the ACE-MAESTRO sunrise occultation data are often smaller than the coincident observations (with mean relative differences down to −10%), the sunset occultation profiles for ACE-MAESTRO show results that are qualitatively similar to ACE-FTS, indicating a large positive bias (mean relative differences within +10 to +30%) in the 45–55 km altitude range. In contrast, there is no significant systematic difference in bias found for the ACE-FTS sunrise and sunset measurements.


  author = "E. Dupuy and K. A. Walker and J. Kar and C. D. Boone and C. T. McElroy and P. F. Bernath and J. R. Drummond and R. Skelton and S. D. McLeod and R. C. Hughes and C. R. Nowlan and D. G. Dufour and J. Zou and F. Nichitiu and K. Strong and P. Baron and R. M. Bevilacqua and T. Blumenstock and G. E. Bodeker and T. Borsdorff and A. E. Bourassa and H. Bovensmann and I. S. Boyd and A. Bracher and C. Brogniez and J. P. Burrows and V. Catoire and S. Ceccherini and S. Chabrillat and T. Christensen and M. T. Coffey and U. Cortesi and J. Davies and C. D. Clercq and D. A. Degenstein and M. D. Mazière and P. Demoulin and J. Dodion and B. Firanski and H. Fischer and G. Forbes and L. Froidevaux and D. Fussen and P. Gerard and S. Godin-Beekmann and F. Goutail and J. Granville and D. Griffith and C. S. Haley and J. W. Hannigan and M. Höpfner and J. J. Jin and A. Jones and N. B. Jones and K. Jucks and A. Kagawa and Y. Kasai and T. E. Kerzenmacher and A. Kleinböhl and A. R. Klekociuk and I. Kramer and H. Küllmann and J. Kuttippurath and E. Kyrölä and J.-C. Lambert and N. J. Livesey and E. J. Llewellyn and N. D. Lloyd and E. Mahieu and G. L. Manney and B. T. Marshall and J. C. McConnell and M. P. McCormick and I. S. McDermid and M. McHugh and C. A. McLinden and J. Mellqvist and K. Mizutani and Y. Murayama and D. P. Murtagh and H. Oelhaf and A. Parrish and S. V. Petelina and C. Piccolo and J.-P. Pommereau and C. E. Randall and C. Robert and C. Roth and M. Schneider and C. Senten and T. Steck and A. Strandberg and K. B. Strawbridge and R. Sussmann and D. P. J. Swart and D. W. Tarasick and J. R. Taylor and C. T\'etard and L. W. Thomason and A. M. Thompson and M. B. Tully and J. Urban and F. Vanhellemont and C. Vigouroux and T. von Clarmann and P. von der Gathen and C. von Savigny and J. W. Waters and J. C. Witte and M. Wolff and J. M. Zawodny",
  title = "Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)",
  year = 2009,
  journal = "Atmospheric Chemistry and Physics",
  volume = 9,
  number = 2,
  pages = "287-343",
  month = "Jan",
  keywords = "O3, 18OO2, O18OO, O17OO",
  doi = "10.5194/acp-9-287-2009",
  url = ""
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