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Volume 3, issue 5 | Copyright

Special issue: Atmospheric remote sensing using limb observations

Atmos. Meas. Tech., 3, 1437-1455, 2010
https://doi.org/10.5194/amt-3-1437-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  13 Oct 2010

13 Oct 2010

CRISTA-NF measurements during the AMMA-SCOUT-O3 aircraft campaign

K. Weigel1,*, M. Riese1,2, L. Hoffmann1, S. Hoefer1, C. Kalicinsky2, P. Knieling2, F. Olschewski2, P. Preusse1, R. Spang1, F. Stroh1, and C. M. Volk2 K. Weigel et al.
  • 1Institute of Chemistry & Dynamics of the Geosphere (ICG-1), Forschungszentrum Jülich, 52425 Jülich, Germany
  • 2Department of Physics, University of Wuppertal, 42907 Wuppertal, Germany
  • *now at: Institute of Environmental Physics (IUP), University of Bremen, 28359 Bremen, Germany

Abstract. The Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere – New Frontiers (CRISTA-NF) instrument participated in the AMMA-SCOUT-O3 measurement campaign in July and August 2006. The instrument is mounted on the high-flying Russian research aircraft M55-Geophysica and measures limb-emissions in the mid-infrared region in the tangent altitude range of about 6 to 21 km. We present a new retrieval setup which is based on 9 integrated spectral windows allowing to retrieve an extended set of trace gases and temperature fields with high vertical resolution (up to 500 m). Retrieval results are shown for temperature, water vapor (H2O), ozone (O3), nitric acid (HNO3), peroxyacetyl nitrate (PAN), carbon tetrachloride (CCl4), and aerosol extinction. Comparisons of temperature, O3, and H2O observations with corresponding in situ measurements on-board M55-Geophysica show reasonable agreement. In particular, CRISTA-NF observations in the vicinity of the aircraft resemble horizontal variations found in the in situ measurements better than corresponding ECMWF fields.

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