• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • CICERO Senter for klimaforskning
  • Journal articles
  • Vis innførsel
  •   Hjem
  • CICERO Senter for klimaforskning
  • Journal articles
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Elemental carbon measurements in European Arctic snow packs

Forsström, S.; Isaksson, Elisabeth; Skeie, Ragnhild Bieltvedt; Ström, Johan; Pedersen, CA; Hudson, S.R.; Berntsen, Terje Koren; Lihavainen, H.; Godtliebsen, Fred; Gerland, Sebastian
Journal article, Peer reviewed
Published version
Thumbnail
Åpne
Forsstr-m_et_al-2013-Journal_of_Geophysical_Research-_Atmospheres.pdf (4.001Mb)
Permanent lenke
http://hdl.handle.net/11250/2465236
Utgivelsesdato
2013
Metadata
Vis full innførsel
Samlinger
  • Journal articles [348]
Originalversjon
Journal of Geophysical Research - Atmospheres. 2013, 118 (24), 13,614-13,627.   10.1002/2013JD019886
Sammendrag
[1] Black carbon (BC) and other light-absorbing particles deposited on snow and ice are known to perturb the surface radiative balance. There are few published observations of the concentration of these particles in the snow in Scandinavia and the European Arctic. We measured BC concentrations in snow samples collected in this region from 2007 to 2009, and we present the results here. The data set includes 484 surface samples and 24 column samples (covering the accumulation season) from snow on land, glaciers, and sea ice. Concentrations up to 88 ng of carbon per gram of snow (ng/g) were found in Scandinavia, while lower values were observed at higher latitudes: 11–14 ng/g in Svalbard, 7–42 ng/g in the Fram Strait, and 9 ng/g in Barrow. Values compare well with other observations but are generally found to be a factor of 2–3 higher than modeled BC concentrations in snow in the chemical transport model Oslo CTM2. This model underestimation comes in spite of potentially significant undercatch in the observations. The spring melt period enhanced BC levels in surface snow at the four sites where the BC concentrations were monitored from March to May in 2008 and 2009. A data set of replicate samples is used to establish a concentration-dependent estimate of the meter-scale variability of BC concentration in snow, found to be around ±30% of the average concentration.
Beskrivelse
© 2013 American Geophysical Union. All Rights Reserved
Tidsskrift
Journal of Geophysical Research - Atmospheres

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit