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@ARTICLE{Ntokas:1018612,
      author       = {Ntokas, Konstantin and Ungermann, Jörn and Kaufmann,
                      Martin and Neubert, Tom and Riese, Martin},
      title        = {{O}bservation of horizontal temperature variations by a
                      spatial heterodyne interferometer using single-sided
                      interferograms},
      journal      = {Atmospheric measurement techniques},
      volume       = {16},
      number       = {22},
      issn         = {1867-1381},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2023-04927},
      pages        = {5681 - 5696},
      year         = {2023},
      abstract     = {Analyses of the mesosphere and lower thermosphere suffer
                      from a lack of global measurements. This is problematic
                      because this region has a complex dynamic structure, with
                      gravity waves playing an important role. A limb-sounding
                      spatial heterodyne interferometer (SHI) was developed to
                      obtain atmospheric temperature retrieved from the O2 A-band
                      emission, which can be used to derive gravity wave
                      parameters in this region. The 2-D spatial distribution of
                      the atmospheric scene is captured by a focal plane array.
                      The SHI superimposes the spectral information onto the
                      horizontal axis across the line-of-sight (LOS). In the usual
                      case, the instrument exploits the horizontal axis to obtain
                      spectral information and uses the vertical axis to get
                      spatial information, i.e. temperature observations at the
                      corresponding tangent points. This results in a finely
                      resolved 1-D vertical atmospheric temperature profile.
                      However, this method does not make use of the horizontal
                      across-LOS information contained in the data.In this paper a
                      new processing method is investigated, which uses
                      single-sided interferograms to gain horizontal across-LOS
                      information about the observed temperature field. Hereby,
                      the interferogram is split, and each side is mirrored at the
                      centre of the horizontal axis. Each side can then be used to
                      retrieve an individual 1-D temperature profile. The location
                      of the two retrieved temperature profiles is analysed using
                      prescribed horizontal temperature variations, as it is
                      needed for deriving wave parameters. We show that it is
                      feasible to derive two independent temperature profiles,
                      which however will increase the requirements of an accurate
                      calibration and processing.},
      cin          = {IEK-7 / ZEA-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)ZEA-2-20090406},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001168821400001},
      doi          = {10.5194/amt-16-5681-2023},
      url          = {https://juser.fz-juelich.de/record/1018612},
}