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@ARTICLE{Ern:825271,
      author       = {Ern, M. and Hoffmann, L. and Preusse, P.},
      title        = {{D}irectional gravity wave momentum fluxes in the
                      stratosphere derived from high resolution {AIRS} temperature
                      data},
      journal      = {Geophysical research letters},
      volume       = {44},
      number       = {1},
      issn         = {0094-8276},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2016-07742},
      pages        = {475-485},
      year         = {2017},
      abstract     = {In order to reduce uncertainties in modeling the
                      stratospheric circulation, global observations of gravity
                      wave momentum flux (GWMF) vectors are required for
                      comparison with distributions of resolved and parametrized
                      GWMF in global models. For the first time, we derive GWMF
                      vectors globally from data of a nadir-viewing satellite
                      instrument: we apply a 3D method to an Atmospheric Infrared
                      Sounder (AIRS) temperature dataset that was optimized for
                      gravity wave (GW) analysis. For January 2009, the resulting
                      distributions of GW amplitudes and of net GWMF highlight the
                      importance of GWs in the polar vortex and the summertime
                      subtropics. Net GWMF is preferentially directed opposite to
                      the background wind, and, interestingly, it is dominated by
                      large amplitude GWs of relatively long horizontal
                      wavelength. For convective GW sources, these large
                      horizontal scales are in contradiction with traditional
                      thoughts. However, the observational filter effect needs to
                      be kept in mind when interpreting the results.},
      cin          = {IEK-7 / JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)JSC-20090406},
      pnm          = {244 - Composition and dynamics of the upper troposphere and
                      middle atmosphere (POF3-244) / 511 - Computational Science
                      and Mathematical Methods (POF3-511)},
      pid          = {G:(DE-HGF)POF3-244 / G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000393954900055},
      doi          = {10.1002/2016GL072007},
      url          = {https://juser.fz-juelich.de/record/825271},
}