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@PHDTHESIS{Geldenhuys:910713,
      author       = {Geldenhuys, Markus},
      title        = {{I}mprovements to gravity wave physics from an
                      observational perspective},
      volume       = {585},
      school       = {Wuppertal},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2022-04084},
      isbn         = {978-3-95806-647-2},
      series       = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {vii, 136 pp},
      year         = {2022},
      note         = {Dissertation, Wuppertal, 2022},
      abstract     = {Atmospheric gravity waves (GWs) are important for
                      turbulence and for driving large-scale circulations in the
                      mid to upper atmosphere. Global circulation models (weather
                      and climate models) do not properly resolve part of the GW
                      spectrum and therefore can not properly reproduce the
                      atmospheric circulations. The models use parameterisation
                      schemes in an attempt to capture the effect of the
                      unresolved GWs. However, parameterisation schemes
                      oversimplify the physical effects in the atmosphere and more
                      complex theories are needed to describe the GWs more
                      realistically. It is widely known that the GW drag amount
                      and the location there-of are incorrect in the general
                      circulation models. This dissertation relies on observations
                      to better understand GWs, which leads to suggestions for
                      improvements in general circulation models. Observations
                      consist of GLORIA (Gimballed Limb Observer for Radiance
                      Imaging of the Atmosphere) and ALIMA (Airborne LIdar for the
                      Middle Atmosphere) instruments onboard the German High
                      Altitude LOng range (HALO) research aircraft. This allows
                      high-resolution measurements from about 5 km to 80 km. ...},
      cin          = {IEK-7},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/910713},
}