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@ARTICLE{Kloss:862205,
      author       = {Kloss, Corinna and Berhet, G. and Sellitto, P. and Ploeger,
                      Felix and Bucci, s. and Khaykin, S. and Jégou, F. and Taha,
                      G. and Thomason, L. W. and Barret, B. and Flochmoen, E. and
                      von Hobe, Marc and Bossolasco, A. and Bègue, N. and Legras,
                      B.},
      title        = {{T}ransport of the 2017 {C}anadian wildfire plume to the
                      tropics and global stratosphere via the {A}sian monsoon
                      circulation},
      journal      = {Atmospheric chemistry and physics / Discussions},
      volume       = {204},
      issn         = {1680-7367},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2019-02553},
      pages        = {1-22},
      year         = {2019},
      abstract     = {We show that a fire plume originating at high northern
                      latitudes during the Canadian wildfire event in July/August
                      2017 reached the tropics, and subsequently the tropical
                      stratosphere via the ascending branch of the Brewer-Dobson
                      Circulation (BDC). The transport from high to low latitudes
                      in the upper troposphere and lowermost stratosphere was
                      mediated by the anticyclonic flow of the Asian monsoon
                      circulation. The fire plume reached the Asian monsoon area
                      in late August/early September, when the Asian Monsoon
                      Anticyclone (AMA) was still in place. While there is no
                      evidence of mixing into the center of the AMA, we show that
                      a substantial part of the fire plume is entrained into the
                      anticyclonic flow at the AMA edge, and is transported into
                      the tropical Upper-Troposphere–Lower-Stratosphere (UTLS),
                      and possibly the Southern Hemisphere particularly following
                      the north-south flow on the eastern side. In the tropics the
                      fire plume is lifted by ~1.5 km per month. Inside the AMA
                      we find evidence of the Asian Tropopause Aerosol Layer
                      (ATAL) in August, doubling background aerosol conditions
                      with a calculated top of the atmosphere shortwave radiative
                      forcing (RF) of −0.05 W/m2. The regional climate impact
                      of the fire signal in the wider Asian monsoon area in
                      September exceeds the impact of the ATAL by a factor of
                      2–4 and compares to that of a plume coming from an
                      advected moderate volcanic eruption. The stratospheric,
                      trans-continental transport of this plume to the tropics and
                      the related regional climate impact point at the importance
                      of long-range dynamical interconnections of pollution
                      sources.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {244 - Composition and dynamics of the upper troposphere and
                      middle atmosphere (POF3-244)},
      pid          = {G:(DE-HGF)POF3-244},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.5194/acp-2019-204},
      url          = {https://juser.fz-juelich.de/record/862205},
}