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@ARTICLE{Smit:185733,
      author       = {Smit, Herman G.J. and Rohs, S. and Neis, P. and Boulanger,
                      D. and Krämer, M. and Wahner, A. and Petzold, A.},
      title        = {{T}echnical {N}ote: {R}eanalysis of upper troposphere
                      humidity data from the {MOZAIC} programme for the period
                      1994 to 2009},
      journal      = {Atmospheric chemistry and physics},
      volume       = {14},
      number       = {23},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2014-07158},
      pages        = {13241 - 13255},
      year         = {2014},
      abstract     = {In situ observational data on the relative humidity (RH) in
                      the upper troposphere and lowermost stratosphere (UT/LS), or
                      tropopause region, collected aboard civil passenger aircraft
                      in the MOZAIC (Measurements of OZone, water vapour, carbon
                      monoxide and nitrogen oxides by in-service AIrbus airCraft)
                      programme were reanalysed for the period 2000 to 2009.
                      Previous analyses of probability distribution functions
                      (PDFs) of upper troposphere humidity (UTH) data from MOZAIC
                      observations from year 2000 and later indicated a bias of
                      UTH data towards higher RH values compared to data of the
                      period 1994 to 1999. As a result, the PDF of UTH data show a
                      substantial fraction of observations above $100\%$ relative
                      humidity with respect to liquid water. Such
                      supersaturations, however, do not occur in the atmosphere
                      because there is always a sufficient number of condensation
                      nuclei available, that trigger condensation as soon as
                      liquid saturation is slightly exceeded. An in-depth
                      reanalysis of the data set identified a coding error in the
                      calibration procedure from year 2000 on. The error did not
                      affect earlier data from 1994 to 1999. The full data set for
                      2000–2009 was reanalysed applying the corrected
                      calibration procedure. Applied correction schemes and a
                      revised error analysis are presented along with the
                      reanalysed PDF of relative humidity with respect to liquid
                      water (RHliquid) and ice (RHice).},
      cin          = {IEK-7 / IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)IEK-8-20101013},
      pnm          = {234 - Composition and Dynamics of the Upper Troposphere and
                      Stratosphere (POF2-234) / 233 - Trace gas and aerosol
                      processes in the troposphere (POF2-233) / HITEC - Helmholtz
                      Interdisciplinary Doctoral Training in Energy and Climate
                      Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF2-234 / G:(DE-HGF)POF2-233 /
                      G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000346140100038},
      doi          = {10.5194/acp-14-13241-2014},
      url          = {https://juser.fz-juelich.de/record/185733},
}