Articles | Volume 7, issue 11
Atmos. Meas. Tech., 7, 3971–3987, 2014

Special issue: Changes in the vertical distribution of ozone – the SI2N report...

Atmos. Meas. Tech., 7, 3971–3987, 2014
Research article
27 Nov 2014
Research article | 27 Nov 2014

Validation of MIPAS IMK/IAA V5R_O3_224 ozone profiles

A. Laeng1, U. Grabowski1, T. von Clarmann1, G. Stiller1, N. Glatthor1, M. Höpfner1, S. Kellmann1, M. Kiefer1, A. Linden1, S. Lossow1, V. Sofieva6, I. Petropavlovskikh15, D. Hubert16, T. Bathgate9, P. Bernath19, C. D. Boone5, C. Clerbaux8, P. Coheur2, R. Damadeo7, D. Degenstein9, S. Frith10, L. Froidevaux4, J. Gille11, K. Hoppel18, M. McHugh2, Y. Kasai12, J. Lumpe17, N. Rahpoe3, G. Toon4, T. Sano13, M. Suzuki13, J. Tamminen6, J. Urban14,†, K. Walker5, M. Weber3, and J. Zawodny7 A. Laeng et al.
  • 1Institut für Meteorologie und Klimaforschung, Karlsruhe Institute of Technology (IMK KIT), Karlsruhe, Germany
  • 2Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles (ULB), Brussels, Belgium
  • 3Institut für Umweltphysik, University of Bremen, Bremen, Germany
  • 4Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
  • 5University of Toronto, Toronto, Canada
  • 6Finnish Meteorological Institute, Helsinki, Finland
  • 7NASA Langley Research Center, Hampton, USA
  • 8Sorbonne Université, UPMC Univ. Paris 06, Université Versailles St-Quentin, CNRS/INSU, LATMOS-IPSL, France and ULB, Brussels, Belgium
  • 9University of Saskatchevan, Saskatoon, Saskatchewan, Canada
  • 10Science Systems and Applications Inc., Lanham, MD, USA
  • 11University of Colorado, Boulder, CO, USA
  • 12NICT, Koganei, Tokyo, Japan
  • 13JAXA, Tsukuba, Japan
  • 14University of Chalmers, Göteborg, Sweden
  • 15NOAA, Boulder, CO, USA
  • 16Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
  • 17Computational Physics, Inc., Boulder, CO, USA
  • 18Naval Research Laboratory, Washington DC, USA
  • 19Old Dominion University, Norfolk, VA, USA
  • deceased

Abstract. We present the results of an extensive validation program of the most recent version of ozone vertical profiles retrieved with the IMK/IAA (Institute for Meteorology and Climate Research/Instituto de Astrofísica de Andalucía) MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) research level 2 processor from version 5 spectral level 1 data. The time period covered corresponds to the reduced spectral resolution period of the MIPAS instrument, i.e., January 2005–April 2012. The comparison with satellite instruments includes all post-2005 satellite limb and occultation sensors that have measured the vertical profiles of tropospheric and stratospheric ozone: ACE-FTS, GOMOS, HALOE, HIRDLS, MLS, OSIRIS, POAM, SAGE II, SCIAMACHY, SMILES, and SMR. In addition, balloon-borne MkIV solar occultation measurements and ground-based Umkehr measurements have been included, as well as two nadir sensors: IASI and SBUV. For each reference data set, bias determination and precision assessment are performed. Better agreement with reference instruments than for the previous data version, V5R_O3_220 (Laeng et al., 2014), is found: the known high bias around the ozone vmr (volume mixing ratio) peak is significantly reduced and the vertical resolution at 35 km has been improved. The agreement with limb and solar occultation reference instruments that have a known small bias vs. ozonesondes is within 7% in the lower and middle stratosphere and 5% in the upper troposphere. Around the ozone vmr peak, the agreement with most of the satellite reference instruments is within 5%; this bias is as low as 3% for ACE-FTS, MLS, OSIRIS, POAM and SBUV.