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@ARTICLE{Preusse:19846,
      author       = {Preusse, P. and Dörnbrack, A. and Eckermann, S. D. and
                      Tan, K. A. and Riese, M. and Schäler, B. and Broutmann, D.
                      and Backmeister, J. and Offermann, D.},
      title        = {{S}pace based measurements of stratospheric mountain waves
                      by {CRISTA} 1 : sensitivity, method, and case study},
      journal      = {Journal of Geophysical Research},
      volume       = {107},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-19846},
      pages        = {D23},
      year         = {2002},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {[1] The Cryogenic Infrared Spectrometers and Telescopes for
                      the Atmosphere (CRISTA) instrument measured stratospheric
                      temperatures and trace species concentrations with high
                      precision and spatial resolution during two missions. The
                      measuring technique is infrared limb-sounding of optically
                      thin emissions. In a general approach, we investigate the
                      applicability of the technique to measure gravity waves
                      (GWs) in the retrieved temperature data. It is shown that
                      GWs with wavelengths of the order of 100-200 km horizontally
                      can be detected. The results are applicable to any
                      instrument using the same technique. We discuss additional
                      constraints inherent to the CRISTA instrument. The vertical
                      field of view and the influence of the sampling and
                      retrieval imply that waves with vertical wavelengths similar
                      to3-5 km or larger can be retrieved. Global distributions of
                      GW fluctuations were extracted from temperature data
                      measured by CRISTA using Maximum Entropy Method (MEM) and
                      Harmonic Analysis (HA), yielding height profiles of vertical
                      wavelength and peak amplitude for fluctuations in each
                      scanned profile. The method is discussed and compared to
                      Fourier transform analyses and standard deviations. Analysis
                      of data from the first mission reveals large GW amplitudes
                      in the stratosphere over southernmost South America. These
                      waves obey the dispersion relation for linear
                      two-dimensional mountain waves (MWs). The horizontal
                      structure on 6 November 1994 is compared to temperature
                      fields calculated by the Pennsylvania State University
                      (PSU)/ National Center for Atmospheric Research (NCAR)
                      mesoscale model (MM5). It is demonstrated that precise
                      knowledge of the instrument's sensitivity is essential.
                      Particularly good agreement is found at the southern tip of
                      South America where the MM5 accurately reproduces the
                      amplitudes and phases of a large-scale wave with 400 km
                      horizontal wavelength. Targeted ray-tracing simulations
                      allow us to interpret some of the observed wave features. A
                      companion paper will discuss MWs on a global scale and
                      estimates the fraction that MWs contribute to the total
                      GWenergy (Preusse et al., in preparation, 2002).},
      keywords     = {J (WoSType)},
      cin          = {ICG-I},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB47},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000180490000005},
      doi          = {10.1029/2001JD000699},
      url          = {https://juser.fz-juelich.de/record/19846},
}