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The natural greenhouse effect of atmospheric oxygen (O2) and nitrogen (N2)
Karlsruhe Institute of Technology.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.ORCID iD: 0000-0002-4478-2185
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.ORCID iD: 0000-0001-6389-1160
Karlsruhe Institute of Technology.
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2012 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 39, L10706- p.Article in journal (Refereed) Published
Abstract [en]

The effect of collision-induced absorption by molecular oxygen (O 2) and nitrogen (N 2) on the outgoing longwave radiation (OLR) of the Earth's atmosphere has been quantified. We have found that on global average under clear-sky conditions the OLR is reduced due to O 2 by 0.11 Wm -2 and due to N 2 by 0.17 Wm -2. Together this amounts to 15% of the OLR-reduction caused by CH 4 at present atmospheric concentrations. Over Antarctica the combined effect of O 2 and N 2 increases on average to about 38% of CH 4 with single values reaching up to 80%. This is explained by less interference of H 2O spectral bands on the absorption features of O 2 and N 2 for dry atmospheric conditions

Place, publisher, year, edition, pages
2012. Vol. 39, L10706- p.
National Category
Aerospace Engineering
Research subject
Space Technology
Identifiers
URN: urn:nbn:se:ltu:diva-13944DOI: 10.1029/2012GL051409Local ID: d43254cd-c524-428e-a24a-72664bd0a3d6OAI: oai:DiVA.org:ltu-13944DiVA: diva2:986897
Note
Validerad; 2012; Bibliografisk uppgift: Article number L10706; 20120612 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Milz, MathiasBuehler, Stefan

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