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@ARTICLE{Chavan:897219,
      author       = {Chavan, Prashant and Fadnavis, Suvarna and Chakroborty,
                      Tanusri and Sioris, Christopher E. and Griessbach, Sabine
                      and Müller, Rolf},
      title        = {{T}he outflow of {A}sian biomass burning carbonaceous
                      aerosol into the upper troposphere and lower stratosphere in
                      spring: radiative effects seen in a global model},
      journal      = {Atmospheric chemistry and physics},
      volume       = {21},
      number       = {18},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2021-03681},
      pages        = {14371 - 14384},
      year         = {2021},
      abstract     = {Biomass burning (BB) over Asia is a strong source of
                      carbonaceous aerosols during spring. From ECHAM6–HAMMOZ
                      model simulations and satellite observations, we show that
                      there is an outflow of Asian BB carbonaceous aerosols into
                      the upper troposphere and lower stratosphere (UTLS) (black
                      carbon: 0.1 to 6 ng m−3 and organic carbon: 0.2 to
                      10 ng m−3) during the spring season. The model
                      simulations show that the greatest transport of BB
                      carbonaceous aerosols into the UTLS occurs from the
                      Indochina and East Asia region by deep convection over the
                      Malay Peninsula and Indonesia. The increase in BB
                      carbonaceous aerosols enhances atmospheric heating by 0.001
                      to 0.02 K d−1 in the UTLS. The aerosol-induced heating
                      and circulation changes increase the water vapor mixing
                      ratios in the upper troposphere (by 20–80 ppmv) and in
                      the lowermost stratosphere (by 0.02–0.3 ppmv) over the
                      tropics. Once in the lower stratosphere, water vapor is
                      further transported to the South Pole by the lowermost
                      branch of the Brewer–Dobson circulation. These aerosols
                      enhance the in-atmosphere radiative forcing (0.68±0.25 to
                      5.30±0.37 W m−2), exacerbating atmospheric warming,
                      but produce a cooling effect on climate (top of the
                      atmosphere – TOA: −2.38±0.12 to
                      −7.08±0.72 W m−2). The model simulations also show
                      that Asian carbonaceous aerosols are transported to the
                      Arctic in the troposphere. The maximum enhancement in
                      aerosol extinction is seen at 400 hPa (by 0.0093 km−1)
                      and associated heating rates at 300 hPa (by
                      0.032 K d−1) in the Arctic.},
      cin          = {IEK-7 / JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)JSC-20090406},
      pnm          = {2112 - Climate Feedbacks (POF4-211) / 5111 -
                      Domain-Specific Simulation $\&$ Data Life Cycle Labs (SDLs)
                      and Research Groups (POF4-511)},
      pid          = {G:(DE-HGF)POF4-2112 / G:(DE-HGF)POF4-5111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000703044400001},
      doi          = {10.5194/acp-21-14371-2021},
      url          = {https://juser.fz-juelich.de/record/897219},
}