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@ARTICLE{Rckmann:34882,
      author       = {Röckmann, T. and Grooß, J. U. and Müller, R.},
      title        = {{T}he impact of anthropogenic chlorine emissions,
                      stratospheric ozone change and chemical feedbacks on
                      stratospheric water},
      journal      = {Atmospheric chemistry and physics},
      volume       = {4},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-34882},
      pages        = {693 -699},
      year         = {2004},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Mixing ratios of water (H2O) in the stratosphere appear to
                      increase due to increased input of H2O and methane from the
                      troposphere and due to intensified oxidation of CH4 in the
                      stratosphere, but many of the underlying mechanisms are not
                      yet understood. Here we identify and quantify three chemical
                      mechanisms which must have led to more efficient oxidation
                      of CH4 in the stratosphere over the past several decades: 1)
                      The increase in stratospheric chlorine levels due to
                      anthropogenic CFC emissions, 2) the thinning of the
                      stratospheric ozone column and 3) enhanced OH levels in the
                      stratosphere due to increasing H2O levels themselves. In
                      combination with the increase in tropospheric CH4 mixing
                      ratios and with solar cycle related variations of upper
                      stratospheric ozone, these effects can explain about $50\%$
                      of the additional conversion of CH4 to H2O as observed
                      throughout the stratosphere. The relative contributions from
                      the individual processes have varied over the past decades.},
      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:000221380000003},
      url          = {https://juser.fz-juelich.de/record/34882},
}