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@ARTICLE{Hoffmann:1717,
      author       = {Hoffmann, L. and Kaufmann, M. and Spang, R. and Müller, R.
                      and Remedios, J. J. and Moore, D. P. and Volk, C. M. and von
                      Clarmann, T. and Riese, M.},
      title        = {{E}nvisat {MIPAS} measurements of {CFC}-11: retrieval,
                      validation, and climatology},
      journal      = {Atmospheric Chemistry and Physics},
      volume       = {8},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-1717},
      pages        = {3671 - 3688},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {From July 2002 to March 2004 the Michelson Interferometer
                      for Passive Atmospheric Sounding (MIPAS) aboard the European
                      Space Agency's Environmental Satellite (Envisat) measured
                      nearly continuously mid infrared limb radiance spectra.
                      These measurements are utilised to retrieve the global
                      distribution of the chlorofluorocarbon CFC-11 by applying a
                      new fast forward model for Envisat MIPAS and an accompanying
                      optimal estimation retrieval processor. A detailed analysis
                      shows that the total retrieval errors of the individual
                      CFC-11 volume mixing ratios are typically below $10\%$ in
                      the altitude range 10 to 25 km and that the systematic
                      components dominate. Contribution of a priori information to
                      the retrieval results are less than 5 to $10\%$ and the
                      vertical resolution of the observations is about 3 to 4 km
                      in the same vertical range. The data are successfully
                      validated by comparison with several other space
                      experiments, an airborne in-situ instrument, measurements
                      from ground-based networks, and independent Envisat MIPAS
                      analyses. The retrieval results from 425 000 Envisat MIPAS
                      limb scans are compiled to provide a new climatological data
                      set of CFC-11. The climatology shows significantly lower
                      CFC-11 abundances in the lower stratosphere compared with
                      the Reference Atmospheres for MIPAS (RAMstan V3.1)
                      climatology. Depending on the atmospheric conditions the
                      differences between the climatologies are up to 30 to 110
                      ppt (45 to $150\%)$ at 19 to 27 km altitude. Additionally,
                      time series of CFC-11 mean abundance and variability for
                      five latitudinal bands are presented. The observed CFC-11
                      distributions can be explained by the residual mean
                      circulation and large-scale eddy-tran sports in the upper
                      troposphere and lower stratosphere. The new CFC-11 data set
                      is well suited for further scientific studies.},
      keywords     = {J (WoSType)},
      cin          = {ICG-1 / JARA-SIM},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB790 / I:(DE-Juel1)VDB1045},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000257516800018},
      url          = {https://juser.fz-juelich.de/record/1717},
}