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@INPROCEEDINGS{Woiwode:902730,
      author       = {Woiwode, Wolfgang and Dörnbrack, Andreas and
                      Friedl-Vallon, Felix and Geldenhuys, Markus and Giez,
                      Andreas and Gulde, Thomas and Höpfner, Michael and
                      Johansson, Sören and Kaifler, Bernd and Kleinert, Anne and
                      Krasauskas, Lukas and Kretschmer, Erik and Maucher, Guido
                      and Neubert, Tom and Nordmeyer, Hans and Piesch, Christof
                      and Preusse, Peter and Rapp, Markus and Riese, Martin and
                      Ungermann, Jörn},
      title        = {{O}bservations of internal gravity waves in vicinity of jet
                      streams during {S}outh{TRAC} flight on 16 {S}eptember 2019},
      reportid     = {FZJ-2021-04512},
      year         = {2021},
      abstract     = {<p>The combination of the airborne GLORIA (Gimballed Limb
                      Observer for Radiance Imaging of the Atmosphere) and ALIMA
                      (Airborne LIdar for Middle Atmosphere research) instruments
                      allows for probing of temperature perturbations associated
                      with gravity waves within the range from the troposphere up
                      to the mesosphere. Both instruments were part of the
                      scientific payload of the German HALO (High Altitude and
                      LOng Range Research Aircraft) during the SouthTRAC-GW
                      (Southern hemisphere Transport, Dynamics, and Chemistry -
                      Gravity Waves) mission, aiming at probing gravity waves in
                      the hotspot region around South America and the Antarctic
                      peninsula. For the research flight on 16 September 2019,
                      complex temperature perturbations attributed to internal
                      gravity waves were forecasted well above the Atlantic to the
                      south-west of Buenos Aires, Argentina. The forecasted
                      temperature perturbations were located in a region where the
                      polar front jet stream met with the subtropical jet, with
                      the polar night jet above. We present temperature
                      perturbations observed by GLORIA and ALIMA during the
                      discussed flight and compare the data with ECMWF IFS
                      (European Centre for Medium-Range Weather Forecasts
                      $\&#8211;$ Integrated Forecasting System) high-resolution
                      deterministic forecasts, aiming at validating the IFS data
                      and identifying sources of the observed wave patterns.</p>},
      month         = {Apr},
      date          = {2021-04-19},
      organization  = {EGU General Assembly, virtuell
                       (virtuell), 19 Apr 2021 - 30 Apr 2021},
      cin          = {IEK-7 / ZEA-2},
      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)1},
      doi          = {10.5194/egusphere-egu21-15102},
      url          = {https://juser.fz-juelich.de/record/902730},
}