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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 1
Ann. Geophys., 17, 101–114, 1999
https://doi.org/10.1007/s00585-999-0101-x
© European Geosciences Union 1999
Ann. Geophys., 17, 101–114, 1999
https://doi.org/10.1007/s00585-999-0101-x
© European Geosciences Union 1999

  31 Jan 1999

31 Jan 1999

Chemical ozone loss in the Arctic vortex in the winter 1995-96: HALOE measurements in conjunction with other observations

R. Müller1, J. -U. Grooß1, D. S. McKenna1, P. J. Crutzen2, C. Brühl2, J. M. Russell III3, L. L. Gordley4, J. P. Burrows5, and A. F. Tuck6 R. Müller et al.
  • 1Institute for Stratospheric Chemistry (ICG-1), Forschungszentrum Jülich, Jülich, Germany
  • 2Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
  • 3Hampton University, Hampton, Virginia, USA
  • 4NASA Langley Research Center, Hampton, Virginia, USA
  • 5Institute for Environmental Physics, University of Bremen, Germany
  • 6NOAA Aeronomy Laboratory, Boulder, Colorado, USA

Abstract. Severe chemical ozone loss has been detected in the Arctic in the winter and spring of 1995-96 by a variety of methods. Extreme reductions in column ozone due to halogen catalysed chemistry were derived from measurements of the Halogen Occultation Experiment (HALOE) on board the Upper Atmosphere Research Satellite in the Arctic vortex. Here, we discuss further aspects of the HALOE observations in the Arctic over this period. Potential problems, both in the data themselves and in the methodology of the data analysis are considered and the reason for the differences between the Arctic ozone losses deduced from HALOE data version 17 and 18 is analysed. Moreover, it is shown that HALOE measurements in the Arctic in winter and spring 1995-96 compare well with observations by other ground-based and satellite instruments.

Key words. Chemical ozone loss (Arctic vortex 1995 · 96; halogen chemistry)

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