Advanced

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)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
publishing date
type
Contribution to journal
publication status
published
subject
keywords
VARIABILITY, CALIBRATION, EQUILIBRIUM, SPECTROMETER, SUPERSATURATION, CCN ACTIVATION, AMMONIUM-SULFATE, DECOMPOSITION, THERMAL, CONDENSATION NUCLEUS ACTIVITY, AEROSOL-PARTICLES
in
Journal of Geophysical Research
volume
115
publisher
American Geophysical Union
external identifiers
  • scopus:77953748764
ISSN
2156-2202
DOI
10.1029/2009JD012626
project
MERGE
language
English
LU publication?
no
id
af966e51-9dad-4b0f-bef1-f609c663d224 (old id 1671488)
date added to LUP
2010-09-17 14:37:15
date last changed
2018-05-29 09:21:15
@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},
  keyword      = {VARIABILITY,CALIBRATION,EQUILIBRIUM,SPECTROMETER,SUPERSATURATION,CCN ACTIVATION,AMMONIUM-SULFATE,DECOMPOSITION,THERMAL,CONDENSATION NUCLEUS ACTIVITY,AEROSOL-PARTICLES},
  language     = {eng},
  publisher    = {American Geophysical Union},
  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},
  volume       = {115},
  year         = {2010},
}