T. Kerzenmacher, et al.
Validation of NO2 and NO from the Atmospheric Chemistry Experiment (ACE)
Atmospheric Chemistry and Physics, 8(19), 5801-5841, 2008; doi: 10.5194/acp-8-5801-2008


Vertical profiles of NO2 and NO have been obtained from solar occultation measurements by the Atmospheric Chemistry Experiment (ACE), using an infrared Fourier Transform Spectrometer (ACE-FTS) and (for NO2) an ultraviolet-visible-near-infrared spectrometer, MAESTRO (Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation). In this paper, the quality of the ACE-FTS version 2.2 NO2 and NO and the MAESTRO version 1.2 NO2 data are assessed using other solar occultation measurements (HALOE, SAGE II, SAGE III, POAM III, SCIAMACHY), stellar occultation measurements (GOMOS), limb measurements (MIPAS, OSIRIS), nadir measurements (SCIAMACHY), balloon-borne measurements (SPIRALE, SAOZ) and ground-based measurements (UV-VIS, FTIR). Time differences between the comparison measurements were reduced using either a tight coincidence criterion, or where possible, chemical box models. ACE-FTS NO2 and NO and the MAESTRO NO2 are generally consistent with the correlative data. The ACE-FTS and MAESTRO NO2 volume mixing ratio (VMR) profiles agree with the profiles from other satellite data sets to within about 20% between 25 and 40 km, with the exception of MIPAS ESA (for ACE-FTS) and SAGE II (for ACE-FTS (sunrise) and MAESTRO) and suggest a negative bias between 23 and 40 km of about 10%. MAESTRO reports larger VMR values than the ACE-FTS. In comparisons with HALOE, ACE-FTS NO VMRs typically (on average) agree to ±8% from 22 to 64 km and to +10% from 93 to 105 km, with maxima of 21% and 36%, respectively. Partial column comparisons for NO2 show that there is quite good agreement between the ACE instruments and the FTIRs, with a mean difference of +7.3% for ACE-FTS and +12.8% for MAESTRO.


  author = "T. Kerzenmacher and M. A. Wolff and K. Strong and E. Dupuy and K. A. Walker and L. K. Amekudzi and R. L. Batchelor and P. F. Bernath and G. Berthet and T. Blumenstock and C. D. Boone and K. Bramstedt and C. Brogniez and S. Brohede and J. P. Burrows and V. Catoire and J. Dodion and J. R. Drummond and D. G. Dufour and B. Funke and D. Fussen and F. Goutail and D. W. T. Griffith and C. S. Haley and F. Hendrick and M. Höpfner and N. Huret and N. Jones and J. Kar and I. Kramer and E. J. Llewellyn and M. L\'opez-Puertas and G. Manney and C. T. McElroy and C. A. McLinden and S. Melo and S. Mikuteit and D. Murtagh and F. Nichitiu and J. Notholt and C. Nowlan and C. Piccolo and J.-P. Pommereau and C. Randall and P. Raspollini and M. Ridolfi and A. Richter and M. Schneider and O. Schrems and M. Silicani and G. P. Stiller and J. Taylor and C. T\'etard and M. Toohey and F. Vanhellemont and T. Warneke and J. M. Zawodny and J. Zou",
  title = "Validation of NO2 and NO from the Atmospheric Chemistry Experiment (ACE)",
  year = 2008,
  journal = "Atmospheric Chemistry and Physics",
  volume = 8,
  number = 19,
  pages = "5801-5841",
  month = "Oct",
  keywords = "NO2, NO",
  doi = "10.5194/acp-8-5801-2008",
  url = ""
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