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@ARTICLE{Fiore:844167,
      author       = {Fiore, Arlene M. and Fischer, Emily V. and Deolal, Shubha
                      Pandey and Wild, Oliver and Jaffe, Dan and Staehelin,
                      Johannes and Clifton, Olivia E. and Milly, George P. and
                      Bergmann, Dan and Collins, William and Dentener, Frank and
                      Doherty, Ruth M. and Duncan, Bryan N. and Fischer, Bernd and
                      Gilge, Stefan and Hess, Peter G. and Horowitz, Larry W. and
                      Lupu, Alexandru and MacKenzie, Ian and Park, Rokjin and
                      Ries, Ludwig and Sanderson, Michael and Schultz, Martin and
                      Shindell, Drew T. and Steinbacher, Martin and Stevenson,
                      David S. and Szopa, Sophie and Zellweger, Christoph and
                      Zeng, Guang},
      title        = {{R}egional and intercontinental pollution signatures on
                      modeled and measured {PAN} at northern mid-latitude mountain
                      sites},
      journal      = {Atmospheric chemistry and physics / Discussions},
      volume       = {1},
      issn         = {1680-7367},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2018-01629},
      pages        = {90},
      year         = {2018},
      abstract     = {Peroxy acetyl nitrate (PAN) is the most important reservoir
                      species for nitrogen oxides (NOx) in the remote troposphere.
                      Upon decomposition in remote regions, PAN promotes efficient
                      ozone production. We evaluate monthly mean PAN abundances
                      from global chemical transport model simulations (HTAP1) for
                      2001 with measurements from five northern mid-latitude
                      mountain sites (four European and one North American). The
                      multi-model mean generally captures the observed monthly
                      mean PAN but individual models simulate a factor of
                      ~ 4–8 range in monthly abundances. We quantify PAN
                      source-receptor relationships at the measurement sites with
                      sensitivity simulations that decrease regional anthropogenic
                      emissions of PAN (and ozone) precursors by $20 \%$ from
                      North America (NA), Europe (EU), and East Asia (EA). The
                      HTAP1 models attribute more of the observed PAN at
                      Jungfraujoch (Switzerland) to emissions in NA and EA, and
                      less to EU, than a prior trajectory-based estimate. The
                      trajectory-based and modeling approaches agree that EU
                      emissions play a role in the observed springtime PAN maximum
                      at Jungfraujoch. The signal from anthropogenic emissions on
                      PAN is strongest at Jungfraujoch and Mount Bachelor (Oregon,
                      U.S.A.) during April. In this month, PAN source-receptor
                      relationships correlate both with model differences in
                      regional anthropogenic volatile organic compound (AVOC)
                      emissions and with ozone source-receptor relationships. PAN
                      observations at mountaintop sites can thus provide key
                      information for evaluating models, including links between
                      PAN and ozone production and source-receptor relationships.
                      Establishing routine, long-term, mountaintop measurements is
                      essential given the large observed interannual variability
                      in PAN.},
      cin          = {JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {512 - Data-Intensive Science and Federated Computing
                      (POF3-512) / Earth System Data Exploration (ESDE)},
      pid          = {G:(DE-HGF)POF3-512 / G:(DE-Juel-1)ESDE},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.5194/acp-2018-90},
      url          = {https://juser.fz-juelich.de/record/844167},
}