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@ARTICLE{Rapp:904133,
      author       = {Rapp, Markus and Kaifler, Bernd and Dörnbrack, Andreas and
                      Gisinger, Sonja and Mixa, Tyler and Reichert, Robert and
                      Kaifler, Natalie and Knobloch, Stefanie and Eckert, Ramona
                      and Wildmann, Norman and Giez, Andreas and Krasauskas, Lukas
                      and Preusse, Peter and Geldenhuys, Markus and Riese, Martin
                      and Woiwode, Wolfgang and Friedl-Vallon, Felix and
                      Sinnhuber, Björn-Martin and Torre, Alejandro de la and
                      Alexander, Peter and Hormaechea, Jose Luis and Janches,
                      Diego and Garhammer, Markus and Chau, Jorge L. and Conte, J.
                      Federico and Hoor, Peter and Engel, Andreas},
      title        = {{SOUTHTRAC}-{GW}: {A}n {A}irborne {F}ield {C}ampaign to
                      {E}xplore {G}ravity {W}ave {D}ynamics at the {W}orld’s
                      {S}trongest {H}otspot},
      journal      = {Bulletin of the American Meteorological Society},
      volume       = {102},
      number       = {4},
      issn         = {0003-0007},
      address      = {Boston, Mass.},
      publisher    = {ASM},
      reportid     = {FZJ-2021-05703},
      pages        = {E871 - E893},
      year         = {2021},
      abstract     = {The southern part of South America and the Antarctic
                      peninsula are known as the world’s strongest hotspot
                      region of stratospheric gravity wave (GW) activity. Large
                      tropospheric winds are deflected by the Andes and the
                      Antarctic Peninsula and excite GWs that might propagate into
                      the upper mesosphere. Satellite observations show large
                      stratospheric GW activity above the mountains, the Drake
                      Passage, and in a belt centered along 60°S. This
                      scientifically highly interesting region for studying GW
                      dynamics was the focus of the Southern Hemisphere Transport,
                      Dynamics, and Chemistry–Gravity Waves (SOUTHTRAC-GW)
                      mission. The German High Altitude and Long Range Research
                      Aircraft (HALO) was deployed to Rio Grande at the southern
                      tip of Argentina in September 2019. Seven dedicated research
                      flights with a typical length of 7,000 km were conducted to
                      collect GW observations with the novel Airborne Lidar for
                      Middle Atmosphere research (ALIMA) instrument and the
                      Gimballed Limb Observer for Radiance Imaging of the
                      Atmosphere (GLORIA) limb sounder. While ALIMA measures
                      temperatures in the altitude range from 20 to 90 km, GLORIA
                      observations allow characterization of temperatures and
                      trace gas mixing ratios from 5 to 15 km. Wave perturbations
                      are derived by subtracting suitable mean profiles. This
                      paper summarizes the motivations and objectives of the
                      SOUTHTRAC-GW mission. The evolution of the atmospheric
                      conditions is documented including the effect of the
                      extraordinary Southern Hemisphere sudden stratospheric
                      warming (SSW) that occurred in early September 2019.
                      Moreover, outstanding initial results of the GW observation
                      and plans for future work are presented.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211) / 2A3 - Remote Sensing
                      (CARF - CCA) (POF4-2A3)},
      pid          = {G:(DE-HGF)POF4-2112 / G:(DE-HGF)POF4-2A3},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000651498500014},
      doi          = {10.1175/BAMS-D-20-0034.1},
      url          = {https://juser.fz-juelich.de/record/904133},
}