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@ARTICLE{SuminskaEbersoldt:18761,
      author       = {Suminska-Ebersoldt, O. and Lehmann, R. and Wegner, T. and
                      Grooß, J.-U. and Hösen, E. and Weigel, R. and Frey, W. and
                      Griessbach, S. and Mitev, V. and Emde, C. and Volk, C. M.
                      and Borrmann, S. and Rex, M. and Stroh, F. and von Hobe, M.},
      title        = {{C}l{OOC}l photolysis at high solar zenith angles: analysis
                      of the {RECONCILE} self-match flight},
      journal      = {Atmospheric chemistry and physics},
      volume       = {12},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-18761},
      pages        = {1353 - 1365},
      year         = {2012},
      note         = {The RECONCILE project is funded under the European
                      Commission Seventh Framework Programme (FP7) under the Grant
                      number RECONCILE-226365-FP7-ENV-2008-1. The Ph.D. student
                      position of Olga Suminska-Ebersoldt is financed within the
                      ENVIVAL-LIFE project through a grant from Bundesministerium
                      fur Wirtschaft (BMWi) via DLR, Germany.},
      abstract     = {The photolysis rate constant of dichlorine peroxide
                      (ClOOCl, ClO dimer) J(ClOOCl) is a critical parameter in
                      catalytic cycles destroying ozone (O-3) in the polar
                      stratosphere. In the atmospherically relevant wavelength
                      region (lambda > 310 nm), significant discrepancies between
                      laboratory measurements of ClOOCl absorption cross sections
                      and spectra cause a large uncertainty in J(ClOOCl). Previous
                      investigations of the consistency of published JClOOCl with
                      atmospheric observations of chlorine monoxide (ClO) and
                      ClOOCl have focused on the photochemical equilibrium between
                      ClOOCl formation and photolysis, and thus could only
                      constrain the ratio of J(ClOOCl) over the ClOOCl formation
                      rate constant k(rec). Here, we constrain the atmospherically
                      effective J(ClOOCl) independent of k(rec), using ClO
                      measured in the same air masses before and directly after
                      sunrise during an aircraft flight that was part of the
                      RECONCILE field campaign in the winter 2010 from Kiruna,
                      Sweden. Over sunrise, when the ClO/ClOOCl system comes out
                      of thermal equilibrium and the influence of the ClO
                      recombination reaction is negligible, the increase in ClO
                      concentrations is significantly faster than expected from
                      J(ClOOCl) based on the absorption spectrum proposed by Pope
                      et al. (2007), but does not warrant cross sections larger
                      than recently published values by Papanastasiou et al.
                      (2009). In particular, the existence of a significant ClOOCl
                      absorption band longwards of 420 nm is not supported by our
                      observations. The observed night-time ClO would not be
                      consistent with a ClO/ClOOCl thermal equilibrium constant
                      significantly higher than the one proposed by Plenge et al.
                      (2005).},
      keywords     = {J (WoSType)},
      cin          = {IEK-7 / JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)JSC-20090406},
      pnm          = {Atmosphäre und Klima (FUEK491) / Scientific Computing
                      (FUEK411) / RECONCILE - Reconciliation of essential process
                      parameters for an enhanced predictability of arctic
                      stratospheric ozone loss and its climate interactions.
                      (226365) / 411 - Computational Science and Mathematical
                      Methods (POF2-411)},
      pid          = {G:(DE-Juel1)FUEK491 / G:(DE-Juel1)FUEK411 /
                      G:(EU-Grant)226365 / G:(DE-HGF)POF2-411},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000300656500009},
      doi          = {10.5194/acp-12-1353-2012},
      url          = {https://juser.fz-juelich.de/record/18761},
}