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@ARTICLE{Song:841897,
      author       = {Song, Rui and Kaufmann, Martin and Ern, Manfred and Liu,
                      Guang and Riese, Martin and Ungermann, Jörn},
      title        = {{T}omographic reconstruction of atmospheric gravity wave
                      parameters from airglow observations},
      journal      = {Atmospheric measurement techniques},
      volume       = {10},
      number       = {12},
      issn         = {1867-8548},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2018-00194},
      pages        = {4601 - 4612},
      year         = {2017},
      abstract     = {Gravity waves (GWs) play an important role in the dynamics
                      of the mesosphere and lower thermosphere (MLT). Therefore,
                      global observations of GWs in the MLT region are of
                      particular interest. The small scales of GWs, however, pose
                      a major problem for the observation of GWs from space. We
                      propose a new observation strategy for GWs in the mesopause
                      region by combining limb and sub-limb satellite-borne remote
                      sensing measurements for improving the spatial resolution of
                      temperatures that are retrieved from atmospheric soundings.
                      In our study, we simulate satellite observations of the
                      rotational structure of the O2 A-band nightglow. A key
                      element of the new method is the ability of the instrument
                      or the satellite to operate in so-called "target mode", i.e.
                      to point at a particular point in the atmosphere and collect
                      radiances at different viewing angles. These multi-angle
                      measurements of a selected region allow for tomographic 2-D
                      reconstruction of the atmospheric state, in particular of GW
                      structures. The feasibility of this tomographic retrieval
                      approach is assessed using simulated measurements. It shows
                      that one major advantage of this observation strategy is
                      that GWs can be observed on a much smaller scale than
                      conventional observations. We derive a GW sensitivity
                      function, and it is shown that "target mode" observations
                      are able to capture GWs with horizontal wavelengths as short
                      as  ∼ 50 km for a large range of vertical
                      wavelengths. This is far better than the horizontal
                      wavelength limit of 100–200 km obtained from
                      conventional limb sounding.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {244 - Composition and dynamics of the upper troposphere and
                      middle atmosphere (POF3-244) / HITEC - Helmholtz
                      Interdisciplinary Doctoral Training in Energy and Climate
                      Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-244 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000416551700002},
      doi          = {10.5194/amt-10-4601-2017},
      url          = {https://juser.fz-juelich.de/record/841897},
}