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@ARTICLE{Waddicor:22399,
      author       = {Waddicor, D.A. and Vaughan, G. and Choularton, T.W. and
                      Bower, K.N. and Coe, H. and Gallagher, M. and Williams, P.I.
                      and Flynn, M. and Volz-Thomas, A. and Pätz, H.-W. and
                      Isaac, P. and Hacker, J. and Arnold, F. and Schlager, H. and
                      Whiteway, J.A.},
      title        = {{A}erosol observations and growth rates downwind of the
                      anvil of a deep tropical thunderstorm},
      journal      = {Atmospheric chemistry and physics},
      volume       = {12},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-22399},
      pages        = {6157 - 6172},
      year         = {2012},
      note         = {We thank the pilots and ground crew of the Egrett and
                      Dornier aircraft for ensuring a successful campaign, and to
                      Peter May and the staff of the Bureau of Meteorology (BoM)
                      Regional Centre in Darwin for their support in forecasting
                      and logistics. We thank also Marcel Berg and Norbert Houben
                      for maintenance of the CO instrument, and the Royal
                      Australian Air Force for hosting the aircraft experiment.
                      Olivier Dessens provided the OH estimates from the p-TOMCAT
                      model. Finally, we thank the UK Natural Environment Research
                      Council (Grant NE/C512688/1) and NERC Airborne Remote
                      Sensing Facility for supporting ACTIVE. DW is a
                      NERC-supported research student.},
      abstract     = {We present a case study of Aitken and accumulation mode
                      aerosol observed downwind of the anvil of a deep tropical
                      thunderstorm. The measurements were made by condensation
                      nuclei counters flown on the Egrett high-altitude aircraft
                      from Darwin during the ACTIVE campaign, in monsoon
                      conditions producing widespread convection over land and
                      ocean. Maximum measured concentrations of aerosol with
                      diameter greater than 10 nm were 25 000 cm(-3) (STP). By
                      calculating back-trajectories from the observations, and
                      projecting onto infrared satellite images, the time since
                      the air exited cloud was estimated. In this way a time scale
                      of about 3 hours was derived for the Aitken aerosol
                      concentration to reach its peak. We examine the hypothesis
                      that the growth in aerosol concentrations can be explained
                      by production of sulphuric acid from SO2 followed by
                      particle nucleation and coagulation. Estimates of the
                      sulphuric acid production rate show that the observations
                      are only consistent with this hypothesis if the particles
                      coagulate to sizes > 10 nm much more quickly than is
                      suggested by current theory. Alternatively, other
                      condensible gases (possibly organic) drive the growth of
                      aerosol particles in the TTL.},
      keywords     = {J (WoSType)},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK491},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000306808300007},
      doi          = {10.5194/acp-12-6157-2012},
      url          = {https://juser.fz-juelich.de/record/22399},
}