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@ARTICLE{Neis:156127,
      author       = {Neis, P. and Smit, H. G. J. and Krämer, M. and Spelten, N.
                      and Petzold, A.},
      title        = {{E}valuation of the {MOZAIC} {C}apacitive {H}ygrometer
                      during the airborne field study {CIRRUS}-{III}},
      journal      = {Atmospheric measurement techniques discussions},
      volume       = {7},
      number       = {9},
      issn         = {1867-8610},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2014-04990},
      pages        = {9803 - 9838},
      year         = {2014},
      abstract     = {The MOZAIC Capacitive Hygrometer (MCH) is usually operated
                      onboard of passenger aircraft in the framework of MOZAIC
                      (Measurement of Ozone by AIRBUS In-Service Aircraft). In
                      order to evaluate the performance of the MCH, it was
                      operated aboard a Learjet 35A aircraft as part of the
                      CIRRUS-III field study together with a closed-cell Lyman-α
                      fluorescence hygrometer (FISH) and an open path tunable
                      diode laser system (OJSTER) for water vapour measurement.
                      After reducing the data set to MOZAIC-relevant conditions,
                      the 1Hz relative humidity (RH) cross correlation between MCH
                      and reference instruments FISH (clear sky) and OJSTER
                      (in-cirrus) yielded a remarkably good agreement of R2 = 0.97
                      and slope m = 0.96 and provided the MCH uncertainty of $5\%$
                      RH. Probability distribution functions of RH deduced from
                      MCH and reference instruments agreed well over the entire
                      range of observations. The main limitation for the use of
                      MCH data is related to sensor temperatures below the
                      calibration limit of Tsensor = −40 °C (corresponds to
                      ambient temperature of Tambient = −70 °C at typical
                      cruising speed of long-haul passenger aircraft), which
                      causes a delay in the sensor's time response. Good
                      performance of MCH for clear sky as well as for in-cirrus
                      conditions demonstrated the sensor robustness also for
                      operation inside ice clouds.},
      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},
      doi          = {10.5194/amtd-7-9803-2014},
      url          = {https://juser.fz-juelich.de/record/156127},
}