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@ARTICLE{Stadtler:835959,
      author       = {Stadtler, Scarlet and Simpson, David and Schröder, Sabine
                      and Taraborrelli, Domenico and Bott, Andreas and Schultz,
                      Martin},
      title        = {{O}zone {I}mpacts of {G}as-{A}erosol {U}ptake in {G}lobal
                      {C}hemistry {T}ransport {M}odels},
      journal      = {Atmospheric chemistry and physics / Discussions},
      volume       = {566},
      issn         = {1680-7375},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2017-05091},
      pages        = {1 - 35},
      year         = {2017},
      abstract     = {The impact of six heterogeneous gas-aerosol uptake
                      reactions on tropospheric ozone and nitrogen species was
                      studied using two chemical transport models, EMEP MSC-W and
                      ECHAM-HAMMOZ. Species undergoing heterogeneous reactions in
                      both models include N2O5, NO3, NO2, O3, HNO3 and HO2. Since
                      heterogeneous reactions take place at the aerosol surface
                      area, the modeled surface area density Sa of both models was
                      compared to a satellite product retrieving the surface area.
                      This comparison shows a good agreement in global pattern and
                      especially the capability of both models to capture the
                      extreme aerosol loadings in East Asia.The impact of the
                      heterogeneous reactions was evaluated by the simulation of a
                      reference run containing all heterogeneous reactions and
                      several sensitivity runs. One reaction was turned off in
                      each sensitivity run to compare it with the reference run.
                      The analysis of the sensitivity runs confirms that the
                      globally most important heterogeneous reaction is the one of
                      N2O5. Nevertheless, NO2, HNO3 and HO2 heterogeneous reaction
                      gain relevance particularly in East Asia due to the presence
                      of high NOx concentrations and high Sa in the same region,
                      although ECHAM-HAMMOZ showed much stronger responses than
                      EMEP in this respect. The heterogeneous reaction of O3
                      itself on dust is of minor relevance compared to the other
                      heterogeneous reactions. The impacts of the N2O5 reactions
                      show strong seasonal variations, with biggest impacts on O3
                      in spring time when photochemical reactions are active and
                      N2O5 levels still high. Evaluation of the models with
                      northern hemispheric ozone surface observations yields a
                      better agreement of the models with observations in terms of
                      concentration levels, variability, and temporal correlations
                      at most sites when the heterogeneous reactions are
                      incorporated.},
      cin          = {IEK-8 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013 / $I:(DE-82)080012_20140620$},
      pnm          = {243 - Tropospheric trace substances and their
                      transformation processes (POF3-243) / Chemical processes in
                      the troposphere and their impact on climate
                      $(jicg23_20151101)$ / HITEC - Helmholtz Interdisciplinary
                      Doctoral Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-243 / $G:(DE-Juel1)jicg23_20151101$ /
                      G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.5194/acp-2017-566},
      url          = {https://juser.fz-juelich.de/record/835959},
}