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@ARTICLE{Belotti:1007784,
      author       = {Belotti, Claudio and Barbara, Flavio and Barucci, Marco and
                      Bianchini, Giovanni and D'Amato, Francesco and Del Bianco,
                      Samuele and Di Natale, Gianluca and Gai, Marco and Montori,
                      Alessio and Pratesi, Filippo and Rettinger, Markus and Rolf,
                      Christian and Sussmann, Ralf and Trickl, Thomas and Viciani,
                      Silvia and Vogelmann, Hannes and Palchetti, Luca},
      title        = {{T}he {F}ar-{I}nfrared {R}adiation {M}obile {O}bservation
                      {S}ystem ({FIRMOS}) for spectral characterization of the
                      atmospheric emission},
      journal      = {Atmospheric measurement techniques},
      volume       = {16},
      number       = {10},
      issn         = {1867-1381},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2023-02181},
      pages        = {2511 - 2529},
      year         = {2023},
      abstract     = {The Far-Infrared Radiation Mobile Observation System
                      (FIRMOS) is a Fourier transform spectroradiometer developed
                      to support the Far-infrared Outgoing Radiation Understanding
                      and Monitoring (FORUM) satellite mission by validating
                      measurement methods and instrument design concepts, both in
                      the laboratory and in field campaigns. FIRMOS is capable of
                      measuring the downwelling spectral radiance emitted by the
                      atmosphere in the spectral band from 100 to 1000 cm−1
                      (10–100 µm in wavelength), with a maximum spectral
                      resolution of 0.25 cm−1. We describe the instrument
                      design and its characterization and discuss the geophysical
                      products obtained by inverting the atmospheric spectral
                      radiance measured during a campaign from the high-altitude
                      location of Mount Zugspitze in Germany, beside the
                      Extended-range Atmospheric Emitted Radiance Interferometer
                      (E-AERI), which is permanently installed at the site.
                      Following the selection of clear-sky scenes, using a
                      specific algorithm, the water vapour and temperature
                      profiles were retrieved from the FIRMOS spectra by applying
                      the Kyoto protocol and Informed Management of the Adaptation
                      (KLIMA) code. The profiles were found in very good agreement
                      with those provided by radiosondes and by the Raman lidar
                      operating from the Zugspitze Schneefernerhaus station. In
                      addition, the retrieval products were validated by comparing
                      the retrieved integrated water vapour values with those
                      obtained from the E-AERI spectra.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211) / 2A3 - Remote Sensing
                      (CARF - CCA) (POF4-2A3)},
      pid          = {G:(DE-HGF)POF4-2112 / G:(DE-HGF)POF4-2A3},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000994871700001},
      doi          = {10.5194/amt-16-2511-2023},
      url          = {https://juser.fz-juelich.de/record/1007784},
}