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The natural aerosol over Northern Europe and its relation to anthropogenic emissions - implications of important climate feedbacks

Tunved, Peter; Johan, Ström; Markku, Kulmala; Veli-Matti, Kerminen; Mikka, Dal Maso; Svenningsson, Birgitta LU ; Chris, Lunder and Hans Christen, Hansson (2008) In Tellus. Series B: Chemical and Physical Meteorology 60 B(4). p.473-484
Abstract
We use a recently developed parametrization to estimate the regional particle field in the summer time troposphere over Scandinavia that would result if the forest were the only source of particles. The calculated field is compared with available observational data. It is concluded that the needle leaf forest above 58 degrees N alone is capable of producing aerosol mass concentrations corresponding to 12-50% of today's values in the boundary layer over Scandinavia. We also demonstrate that the forest itself could produce up to 200 CCN per cubic centimetre on average over Scandinavia and further show that an increase in temperature by 5.8 degrees C compared to today's average temperature could increase this CCN population by 40%. The study... (More)
We use a recently developed parametrization to estimate the regional particle field in the summer time troposphere over Scandinavia that would result if the forest were the only source of particles. The calculated field is compared with available observational data. It is concluded that the needle leaf forest above 58 degrees N alone is capable of producing aerosol mass concentrations corresponding to 12-50% of today's values in the boundary layer over Scandinavia. We also demonstrate that the forest itself could produce up to 200 CCN per cubic centimetre on average over Scandinavia and further show that an increase in temperature by 5.8 degrees C compared to today's average temperature could increase this CCN population by 40%. The study shows that we are able to approximate the natural aerosol field resulting from biogenic emissions over the boreal forest in the northern hemispheric region. This information provide an important contribution in the evaluation of the climate effect caused by anthropogenic emissions of particles over the forest and also opens the possibility to better address the climate feedbacks believed to be associated with the boreal region. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Tellus. Series B: Chemical and Physical Meteorology
volume
60 B
issue
4
pages
473 - 484
publisher
Taylor & Francis
external identifiers
  • wos:000259575400002
  • scopus:50949116082
ISSN
0280-6509
DOI
10.1111/j.1600-0889.2008.00363.x
language
English
LU publication?
yes
id
41b54233-4f5f-41cf-a7c1-08a41b6ed583 (old id 1286177)
date added to LUP
2009-02-04 09:34:49
date last changed
2017-07-02 03:57:54
@article{41b54233-4f5f-41cf-a7c1-08a41b6ed583,
  abstract     = {We use a recently developed parametrization to estimate the regional particle field in the summer time troposphere over Scandinavia that would result if the forest were the only source of particles. The calculated field is compared with available observational data. It is concluded that the needle leaf forest above 58 degrees N alone is capable of producing aerosol mass concentrations corresponding to 12-50% of today's values in the boundary layer over Scandinavia. We also demonstrate that the forest itself could produce up to 200 CCN per cubic centimetre on average over Scandinavia and further show that an increase in temperature by 5.8 degrees C compared to today's average temperature could increase this CCN population by 40%. The study shows that we are able to approximate the natural aerosol field resulting from biogenic emissions over the boreal forest in the northern hemispheric region. This information provide an important contribution in the evaluation of the climate effect caused by anthropogenic emissions of particles over the forest and also opens the possibility to better address the climate feedbacks believed to be associated with the boreal region.},
  author       = {Tunved, Peter and Johan, Ström and Markku, Kulmala and Veli-Matti, Kerminen and Mikka, Dal Maso and Svenningsson, Birgitta and Chris, Lunder and Hans Christen, Hansson},
  issn         = {0280-6509},
  language     = {eng},
  number       = {4},
  pages        = {473--484},
  publisher    = {Taylor & Francis},
  series       = {Tellus. Series B: Chemical and Physical Meteorology},
  title        = {The natural aerosol over Northern Europe and its relation to anthropogenic emissions - implications of important climate feedbacks},
  url          = {http://dx.doi.org/10.1111/j.1600-0889.2008.00363.x},
  volume       = {60 B},
  year         = {2008},
}