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"Missing" cloud condensation nuclei in peat smoke

Dusek, U. ; Frank, G. P. LU orcid ; Helas, G. ; Iinuma, Y. ; Zeromskiene, K. ; Gwaze, P. ; Hennig, T. ; Massling, A. ; Schmid, O. and Herrmann, H. , et al. (2005) In Geophysical Research Letters 32(11). p.1-4
Abstract

We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (dp) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of dp > 200 nm, where typical wood burning particles are activated at S < 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from... (More)

We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (dp) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of dp > 200 nm, where typical wood burning particles are activated at S < 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from peat samples of the same area suggest that these Indonesian smoke particles probably acquired soluble material through chemical processing in the atmosphere. Freshly emitted peat smoke particles are at least partially not very efficient CCN.

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publishing date
type
Contribution to journal
publication status
published
in
Geophysical Research Letters
volume
32
issue
11
pages
4 pages
publisher
American Geophysical Union (AGU)
external identifiers
  • scopus:23844465511
ISSN
0094-8276
DOI
10.1029/2005GL022473
language
English
LU publication?
no
id
5a018f5a-d8bf-4f59-bf94-5c525d7f3197
date added to LUP
2020-11-09 15:08:59
date last changed
2022-04-06 13:35:49
@article{5a018f5a-d8bf-4f59-bf94-5c525d7f3197,
  abstract     = {{<p>We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (d<sub>p</sub>) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of d<sub>p</sub> &gt; 200 nm, where typical wood burning particles are activated at S &lt; 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from peat samples of the same area suggest that these Indonesian smoke particles probably acquired soluble material through chemical processing in the atmosphere. Freshly emitted peat smoke particles are at least partially not very efficient CCN.</p>}},
  author       = {{Dusek, U. and Frank, G. P. and Helas, G. and Iinuma, Y. and Zeromskiene, K. and Gwaze, P. and Hennig, T. and Massling, A. and Schmid, O. and Herrmann, H. and Wiedensohler, A. and Andreae, M. O.}},
  issn         = {{0094-8276}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{11}},
  pages        = {{1--4}},
  publisher    = {{American Geophysical Union (AGU)}},
  series       = {{Geophysical Research Letters}},
  title        = {{"Missing" cloud condensation nuclei in peat smoke}},
  url          = {{http://dx.doi.org/10.1029/2005GL022473}},
  doi          = {{10.1029/2005GL022473}},
  volume       = {{32}},
  year         = {{2005}},
}