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@ARTICLE{Groo:1043537,
      author       = {Grooß, Jens-Uwe and Müller, Rolf and Crowley, John N. and
                      Hegglin, Michaela I.},
      title        = {{C}hlorine peroxide reaction explains observed wintertime
                      hydrogen chloride in the {A}ntarctic vortex},
      journal      = {Communications earth $\&$ environment},
      volume       = {6},
      number       = {1},
      issn         = {2662-4435},
      address      = {London},
      publisher    = {Springer Nature},
      reportid     = {FZJ-2025-02911},
      pages        = {496},
      year         = {2025},
      abstract     = {It is well established that the drastic ozone loss in the
                      Antarctic stratosphere, commonly known as the ozone hole, is
                      primarily driven by gas-phase and heterogeneous chemical
                      processes. While chemistry transport models generally
                      reproduce observed ozone depletion well, they fail to
                      capture the rapid early-winter decline of hydrogen chloride.
                      We here examine the impact of the heterogeneous reaction
                      between chlorine peroxide and hydrogen chloride forming
                      HOOCl, followed by its photolysis. Incorporating this
                      reaction and an additional hypochlorous acid loss pathway
                      into a chemical mechanism significantly improves model
                      agreement with observed levels of several chlorine compounds
                      in the lower polar vortex stratosphere. This revised
                      mechanism increases simulated ozone partial column depletion
                      by over $15\%$ between early July and mid-September 2011.
                      Laboratory confirmation of these proposed reactions is
                      needed to validate the mechanism.},
      cin          = {ICE-4},
      ddc          = {550},
      cid          = {I:(DE-Juel1)ICE-4-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001518514400001},
      doi          = {10.1038/s43247-025-02499-4},
      url          = {https://juser.fz-juelich.de/record/1043537},
}