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@ARTICLE{Trinh:823848,
      author       = {Trinh, Quang Thai and Kalisch, Silvio and Preusse, Peter
                      and Ern, Manfred and Chun, Hye-Yeong and Eckermann, Stephen
                      D. and Kang, Min-Jee and Riese, Martin},
      title        = {{T}uning of a convective gravity wave source scheme based
                      on {HIRDLS} observations},
      journal      = {Atmospheric chemistry and physics},
      volume       = {16},
      number       = {11},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2016-06488},
      pages        = {7335 - 7356},
      year         = {2016},
      abstract     = {Convection as one dominant source of atmospheric gravity
                      waves (GWs) has been the focus of investigation over recent
                      years. However, its spatial and temporal forcing scales are
                      not well known. In this work we address this open issue by a
                      systematic verification of free parameters of the Yonsei
                      convective GW source scheme based on observations from the
                      High Resolution Dynamics Limb Sounder (HIRDLS). The
                      instrument can only see a limited portion of the gravity
                      wave spectrum due to visibility effects and observation
                      geometry. To allow for a meaningful comparison of simulated
                      GWs to observations, a comprehensive filter, which mimics
                      the instrument limitations, is applied to the simulated
                      waves. By this approach, only long horizontal-scale
                      convective GWs are addressed. Results show that spectrum,
                      distribution of momentum flux, and zonal mean forcing of
                      long horizontal-scale convective GWs can be successfully
                      simulated by the superposition of three or four combinations
                      of parameter sets reproducing the observed GW spectrum.
                      These selected parameter sets are different for northern and
                      southern summer. Although long horizontal-scale waves are
                      only part of the full spectrum of convective GWs, the
                      momentum flux of these waves is found to be significant and
                      relevant for the driving of the QBO (quasi-biennial
                      oscillation). The zonal momentum balance is considered in
                      vertical cross sections of GW momentum flux (GWMF) and GW
                      drag (GWD). Global maps of the horizontal distribution of
                      GWMF are considered and consistency between simulated
                      results and HIRDLS observations is found. The latitude
                      dependence of the zonal phase speed spectrum of GWMF and its
                      change with altitude is discussed.},
      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)},
      pid          = {G:(DE-HGF)POF3-244},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000378354600039},
      doi          = {10.5194/acp-16-7335-2016},
      url          = {https://juser.fz-juelich.de/record/823848},
}