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@ARTICLE{Schiller:23763,
      author       = {Schiller, C. and Bauer, R. and Cairo, F. and Deshler, M. C.
                      and Dörnbrack, A. and Elkins, J. and Engel, A. and Flentje,
                      H. and Larsen, N. and Levin, I. and Müller, M. and Oltmans,
                      S. and Ovarlez, H. and Ovarlez, J. and Schreiner, J. and
                      Stroh, F. and Voigt, C. and Vömel, H.},
      title        = {{D}ehydration in the {A}rctic stratosphere during the
                      {THESEO} 2000/{SOLVE} campaigns},
      journal      = {Journal of Geophysical Research},
      volume       = {107},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-23763},
      pages        = {D20},
      year         = {2002},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Balloon-borne measurements of H2O, CH4, and H-2 in January
                      and March 2000 show clear evidence for dehydration inside
                      the polar vortex. At 30-50 hPa, total hydrogen is reduced by
                      approximately 0.5 ppmv. This phenomenon is apparent in all
                      five in situ balloon observations of this period; therefore
                      it is probable that dehydration occurred over extended
                      regions and a long period of this winter which was
                      characterized by a well-confined vortex and low
                      stratospheric temperatures. At altitudes below 50 hPa, where
                      dehydration was strongest in previous Arctic observations
                      and in the austral spring, total hydrogen values (2.CH4 +H2O
                      + H-2) were similar to those found in Arctic profiles from
                      other years where there was no dehydration and to those
                      found at midlatitudes. In some of the dehydrated air masses,
                      small solid particles were found whose crystallization might
                      be connected to the earlier formation of ice particles. Back
                      trajectory calculations for the January observations
                      indicate that the probed air masses had experienced
                      temperatures below the ice frost point in a synoptic-scale
                      cold region several days before the observations. Most
                      likely, the air was dehydrated there. In addition,
                      temperatures in these air masses dropped below ice
                      saturation several hours prior to the observations in the
                      lee of the Scandinavian mountain ridge. For the March
                      measurements, no ice saturation was apparent in the recent
                      history of the air masses, again indicating that dehydration
                      in the Arctic winter 1999/2000 was not a local phenomenon.},
      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:000180466200080},
      doi          = {10.1029/2001JD000463},
      url          = {https://juser.fz-juelich.de/record/23763},
}