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@PHDTHESIS{Hfer:12492,
      author       = {Höfer, Sebastian},
      title        = {{S}atellitengestütze {S}chwerewellenmessungen in der
                      {A}tmosphäre und {P}erspektiven einer zukünftigen {ESA}
                      {M}ission ({PREMIER})},
      volume       = {70},
      issn         = {1866-1793},
      school       = {Universität Wuppertal},
      type         = {Dr. (Univ.)},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-12492},
      isbn         = {978-3-89336-637-8},
      series       = {Schriften des Forschungszentrums Jülich : Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {81 S.},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012; Univ. Wuppertal,
                      Diss., 2010},
      abstract     = {Gravity waves play a key role in middle atmosphere
                      dynamics. For an improved understanding of gravity waves and
                      their interactions with the atmosphere, global modeling and
                      measurements with high resolution are required. In this work
                      we validate the gravity waves resolved in ECMWF
                      ($\textbf{E}$uropean $\textbf{C}$entre for
                      $\textbf{M}$edium-Range $\textbf{W}$eather
                      $\textbf{F}$orecasts) model-data by comparison with gravity
                      wave analysis of global satellite observations by SABER
                      ($\textbf{S}$ounding of the $\textbf{A}$tmosphere using
                      $\textbf{B}$roadband $\textbf{E}$mission
                      $\textbf{R}$adiometry). The validation of the model-data
                      shows that the modeled wave amplitudes are lowered by a
                      factor of two in the troposphere and lower stratosphere.
                      Above 50km altitude, the vertical resolution of ECMWF is
                      reduced and accordingly the gravity waves are strongly
                      damped. It is also shown that gravity waves with orographic
                      sources are better represented in the model-data than
                      convectively exited waves. Gravity waves with convective
                      sources are suppressed by the resolution of the model and
                      are only represented with small amplitudes. The validated
                      ECMWF-data set can be used to simulate measurements of a
                      future $\textbf{I}$nfrared $\textbf{L}$imb $\textbf{I}$mager
                      (ILI). The investigation of the ILI-data shows that the
                      measurement resolution is sufficient to calculate gravity
                      wave momentum flux in both horizontal directions and that it
                      will be possible to receive information about the
                      propagation direction of the waves. The validated model-data
                      are also used to improve the assumptions made by using
                      temperature data to receive gravity wave momentum flux. The
                      results of this study shows clearly the high potential of
                      ILI-data for global measurements of gravity waves and the
                      retrieval of gravity wave parameters. In particular momentum
                      flux depending on the propagation direction of the waves
                      will improve global circulation models.},
      cin          = {IEK-7},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK491},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/12492},
}