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Volume 8, issue 19
Atmos. Chem. Phys., 8, 5801-5841, 2008
https://doi.org/10.5194/acp-8-5801-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Validation results for the Atmospheric Chemistry Experiment...

Atmos. Chem. Phys., 8, 5801-5841, 2008
https://doi.org/10.5194/acp-8-5801-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

  08 Oct 2008

08 Oct 2008

Validation of NO2 and NO from the Atmospheric Chemistry Experiment (ACE)

T. Kerzenmacher1, M. A. Wolff1, K. Strong1, E. Dupuy2, K. A. Walker1,2, L. K. Amekudzi3, R. L. Batchelor1, P. F. Bernath2,4, G. Berthet5, T. Blumenstock6, C. D. Boone2, K. Bramstedt3, C. Brogniez7, S. Brohede8, J. P. Burrows3, V. Catoire5, J. Dodion9, J. R. Drummond1,10, D. G. Dufour11, B. Funke12, D. Fussen9, F. Goutail13, D. W. T. Griffith14, C. S. Haley15, F. Hendrick9, M. Höpfner6, N. Huret5, N. Jones14, J. Kar1, I. Kramer6, E. J. Llewellyn16, M. López-Puertas12, G. Manney17,18, C. T. McElroy1,19, C. A. McLinden19, S. Melo20, S. Mikuteit6, D. Murtagh8, F. Nichitiu1, J. Notholt3, C. Nowlan1, C. Piccolo21, J.-P. Pommereau13, C. Randall22, P. Raspollini23, M. Ridolfi24, A. Richter3, M. Schneider6, O. Schrems25, M. Silicani20, G. P. Stiller6, J. Taylor1, C. Tétard7, M. Toohey1, F. Vanhellemont9, T. Warneke3, J. M. Zawodny26, and J. Zou1 T. Kerzenmacher et al.
  • 1Department of Physics, University of Toronto, Toronto, Ontario, Canada
  • 2Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
  • 3Institute of Environmental Physics, Institute of Remote Sensing, Universität Bremen, Bremen, Germany
  • 4Department of Chemistry, University of York, Heslington, York, UK
  • 5Laboratoire de Physique et Chimie de l'Environnement, CNRS–Université d'Orléans, Orléans, France
  • 6Forschungszentrum Karlsruhe und Universität Karlsruhe, Inst. für Meteorologie und Klimaforschung (IMK), Karlsruhe, Germany
  • 7Laboratoire d'Optique Atmosphérique, Université des sciences et technologies de Lille, Villeneuve d'Ascq, France
  • 8Department of Radio and Space Science, Chalmers University of Technology, Göteborg, Sweden
  • 9Belgisch Instituut voor Ruimte-Aëronomie–Institut d'Aéronomie Spatiale de Belgique (IASB-BIRA), Bruxelles, Belgium
  • 10Department of Physics & Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
  • 11Picomole Instruments Inc., Edmonton, Alberta, Canada
  • 12Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain
  • 13Service d'Aéronomie–CNRS, Verrières-le-Buisson, France
  • 14School of Chemistry, University of Wollongong, Wollongong, Australia
  • 15Centre for Research in Earth and Space Science, York University, Toronto, Ontario, Canada
  • 16Institute of Space and Atmospheric Studies, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
  • 17Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
  • 18New Mexico Institute of Mining and Technology, Socorro, NM, USA
  • 19Environment Canada, Downsview, Ontario, Canada
  • 20Canadian Space Agency, St Hubert, Quebec, Canada
  • 21Atmospheric, Oceanic and Planetary Physics, University of Oxford, Oxford, UK
  • 22Laboratory for Atmospheric and Space Physics & Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, USA
  • 23Istituto di Fisica Applicata "Nello Carrara" (IFAC) del Consiglio Nazionale delle Ricerche (CNR), Firenze, Italy
  • 24Dipartimento di Chimica Fisica e Inorganica, Universitá di Bologna, Bologna, Italy
  • 25Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
  • 26NASA Langley Research Center, Hampton, VA, USA

Abstract. 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.

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