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@ARTICLE{Ern:62627,
      author       = {Ern, M. and Preusse, P. and Krebsbach, M and Mlynczak, M.
                      G. and Russel III, J. M.},
      title        = {{E}quatorial wave analysis from {SABER} and {ECMWF}
                      temperatures},
      journal      = {Atmospheric chemistry and physics},
      volume       = {8},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-62627},
      pages        = {845 - 869},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Equatorial planetary scale wave modes such as Kelvin waves
                      or Rossby-gravity waves are excited by convective processes
                      in the troposphere. In this paper an analysis for these and
                      other equatorial wave modes is carried out with special
                      focus on the stratosphere using temperature data from the
                      SABER satellite instrument as well as ECMWF temperatures.
                      Space-time spectra of symmetric and antisymmetric spectral
                      power are derived to separate the different equatorial wave
                      types and the contribution of gravity waves is determined
                      from the spectral background of the space-time spectra.Both
                      gravity waves and equatorial planetary scale wave modes are
                      main drivers of the quasi-biennial oscillation (QBO) in the
                      stratosphere. Temperature variances attributed to the
                      different wave types are calculated for the period from
                      February 2002 until March 2006 and compared to previous
                      findings. A comparison between SABER and ECMWF wave analyses
                      shows that in the lower stratosphere SABER and ECMWF spectra
                      and temperature variances agree remarkably well while in the
                      upper stratosphere ECMWF tends to overestimate Kelvin wave
                      components. Gravity wave variances are partly reproduced by
                      ECMWF but have a significant low-bias. For the examples of a
                      QBO westerly phase (October-December 2004) and a QBO
                      easterly phase (November/December 2005, period of the
                      SCOUT-O3 tropical aircraft campaign in Darwin/Australia) in
                      the lower stratosphere we find qualitatively good agreement
                      between SABER and ECMWF in the longitude-time distribution
                      of Kelvin, Rossby (n=1), and Rossby-gravity waves.},
      keywords     = {J (WoSType)},
      cin          = {ICG-1},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB790},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000253908500005},
      doi          = {10.5194/acp-8-845-2008},
      url          = {https://juser.fz-juelich.de/record/62627},
}