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Soluble mass, hygroscopic growth, and droplet activation of coated soot particles during LACIS Experiment in November (LExNo)

Henning, S. ; Wex, H. ; Hennig, T. ; Kiselev, A. ; Snider, J. R. ; Rose, D. ; Dusek, U. ; Frank, Göran LU ; Poeschl, U. and Kristensson, A. , et al. (2010) In Journal of Geophysical Research 115.
Abstract
The LACIS Experiment in November (LExNo) campaign was conducted in November 2005 at the Atmospheric Composition Change the European Network of Excellence (ACCENT) site Leipzig Aerosol Cloud Interaction Simulator (LACIS). The goal of LExNo was to provide deeper insight into the activation properties of coated soot particles imitating aged combustion aerosol particles. The aerosols were prepared by starting with spark-generated soot particles. In some experiments the soot particles were compacted by exposure to propanol vapor; in others this step was bypassed. The soot was thermally coated with ammonium sulfate, levoglucosan, or a mixture of both ammonium sulfate and levoglucosan. The synthesized particles were investigated using aerosol... (More)
The LACIS Experiment in November (LExNo) campaign was conducted in November 2005 at the Atmospheric Composition Change the European Network of Excellence (ACCENT) site Leipzig Aerosol Cloud Interaction Simulator (LACIS). The goal of LExNo was to provide deeper insight into the activation properties of coated soot particles imitating aged combustion aerosol particles. The aerosols were prepared by starting with spark-generated soot particles. In some experiments the soot particles were compacted by exposure to propanol vapor; in others this step was bypassed. The soot was thermally coated with ammonium sulfate, levoglucosan, or a mixture of both ammonium sulfate and levoglucosan. The synthesized particles were investigated using aerosol mass spectrometry, a Hygroscopicity Tandem differential mobility analyzer, two Wyoming static diffusion cloud condensation nuclei (CCN) instruments, a Droplet Measurement Technologies continuous flow CCN instrument, and LACIS. A close correlation between the hygroscopic growth factor at 98% relative humidity and the critical supersaturation of CCN activation was observed. Closure between hygroscopic growth, CCN activation, and chemical composition of the investigated particles was achieved with two different single-parameter Kohler model approaches and with a third approach, a standard Kohler model using as input parameter the soluble mass as determined by aerosol mass spectrometry. (Less)
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VARIABILITY, CALIBRATION, EQUILIBRIUM, SPECTROMETER, SUPERSATURATION, CCN ACTIVATION, AMMONIUM-SULFATE, DECOMPOSITION, THERMAL, CONDENSATION NUCLEUS ACTIVITY, AEROSOL-PARTICLES
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Journal of Geophysical Research
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115
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Wiley-Blackwell Publishing Ltd
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  • scopus:77953748764
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2156-2202
DOI
10.1029/2009JD012626
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English
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The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
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af966e51-9dad-4b0f-bef1-f609c663d224 (old id 1671488)
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@article{af966e51-9dad-4b0f-bef1-f609c663d224,
  abstract     = {The LACIS Experiment in November (LExNo) campaign was conducted in November 2005 at the Atmospheric Composition Change the European Network of Excellence (ACCENT) site Leipzig Aerosol Cloud Interaction Simulator (LACIS). The goal of LExNo was to provide deeper insight into the activation properties of coated soot particles imitating aged combustion aerosol particles. The aerosols were prepared by starting with spark-generated soot particles. In some experiments the soot particles were compacted by exposure to propanol vapor; in others this step was bypassed. The soot was thermally coated with ammonium sulfate, levoglucosan, or a mixture of both ammonium sulfate and levoglucosan. The synthesized particles were investigated using aerosol mass spectrometry, a Hygroscopicity Tandem differential mobility analyzer, two Wyoming static diffusion cloud condensation nuclei (CCN) instruments, a Droplet Measurement Technologies continuous flow CCN instrument, and LACIS. A close correlation between the hygroscopic growth factor at 98% relative humidity and the critical supersaturation of CCN activation was observed. Closure between hygroscopic growth, CCN activation, and chemical composition of the investigated particles was achieved with two different single-parameter Kohler model approaches and with a third approach, a standard Kohler model using as input parameter the soluble mass as determined by aerosol mass spectrometry.},
  author       = {Henning, S. and Wex, H. and Hennig, T. and Kiselev, A. and Snider, J. R. and Rose, D. and Dusek, U. and Frank, Göran and Poeschl, U. and Kristensson, A. and Bilde, M. and Tillmann, R. and Kiendler-Scharr, A. and Mentel, T.F. and Walter, S. and Schneider, J. and Wennrich, C. and Stratmann, F.},
  issn         = {2156-2202},
  language     = {eng},
  publisher    = {Wiley-Blackwell Publishing Ltd},
  series       = {Journal of Geophysical Research},
  title        = {Soluble mass, hygroscopic growth, and droplet activation of coated soot particles during LACIS Experiment in November (LExNo)},
  url          = {http://dx.doi.org/10.1029/2009JD012626},
  doi          = {10.1029/2009JD012626},
  volume       = {115},
  year         = {2010},
}