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@BOOK{Smit:60217,
      author       = {Smit, Herman G. J. and Sträter, Wolfgang and Helten,
                      Manfred and Kley, Dieter},
      title        = {{E}nvironmental simulation facility to calibrate airborne
                      ozone and humidity sensors},
      volume       = {3796},
      issn         = {0944-2952},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-60217, Juel-3796},
      series       = {Berichte des Forschungszentrums Jülich},
      pages        = {VII, 31 p.},
      year         = {2000},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The Environmental Simulation Facility established at the
                      Forschungszentrum Jülich (FZJ) is designed to investigate
                      the performance of different types of balloon borne sensors
                      as well as air borne humidity sensors to measure the
                      vertical distribution of atmospheric ozone and water vapor,
                      respectively. Key component of the facility is a temperature
                      and pressure controlled simulation chamber with a test room
                      volume of about 500 liter (80x80x80 cm) whereby pressure as
                      well as temperature can be dynamically regulated between 5
                      and 1000 hPa and between 200 and 300 K (-2K/min $\le$ rate
                      $\le$ +2K/min) respectively. The volume mixing ration of
                      ozone can be dynamically regulated between 5 and 10000 ppbv
                      up to a simulation altitude of about 35 km. The relative
                      humidity in the chamber can be varied from about 95 \% down
                      to 2 \% over a temperature range between +30$^{\circ}$C and
                      -70$^{\circ}$C and pressure range between 1000 and 100 hPa.
                      Ozone and humidity sensing devices can be calibrated against
                      accurate reference instruments. A fast response dual beam
                      UV-photometer serves as ozone reference. For the calibration
                      of the water vapor sensors a dew point hygrometer is used
                      for lower/middle tropospheric humidity conditions, while for
                      middle/upper tropospheric conditions a Lyman ($\alpha$)
                      fluorescence hygrometer seves as reference. The entire
                      simulation process is computer controlled to provide
                      reproducible conditions with respect to pressure,
                      temperature, ozone concentration and humidity. Since 1994
                      the chamber is used for the regular (monthly) calibration of
                      water vapor sensing devices which are flown aboard 5 civil
                      "in-service" aircraft (Airbus-A340) within the frame of the
                      European project MOZAIC (Measurement of Ozone and Water
                      Vapor on Airbus In-Service Aircraft) for automatic
                      monitoring of the water vapor distribution in the
                      troposphere. The facility is also established as World
                      Calibration Facility for Ozone Sondes (WCFOS) as part of the
                      Global Atmosphere Watch (GAW) profram of the World
                      Meteorological Organization (WMO). In the scope of this
                      frame work several intercomparison experiments, JOSIE (=
                      Jülich Ozone Sonde Intercomparison Experiment), were
                      conducted to assess the performance of the major types of
                      ozone sondes used within the global network of ozone
                      sounding stations. Furthermore, the facility serves as
                      platform to investigate the performance of new developed
                      airborne sensing devices.},
      cin          = {ICG-2},
      cid          = {I:(DE-Juel1)VDB52},
      pnm          = {Chemie der Belasteten Atmosphäre},
      pid          = {G:(DE-Juel1)FUEK72},
      typ          = {PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/60217},
}