Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Higher apparent gas transfer velocities for CO2 compared to CH4 in small lakes
Department of Thematic Studies - Environmental Change, Linköping University, Linköping, Sweden.
Department of Thematic Studies - Environmental Change, Linköping University, Linköping, Sweden.
Department of Thematic Studies - Environmental Change, Linköping University, Linköping, Sweden.
Department of Ecology, Evolution and Marine Biology, University of California, UCEN Rd, Santa Barbara, California, United States; Earth Research Institute, University of California, Lagoon Rd, Santa Barbara, California, United States.
Show others and affiliations
2023 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 57, no 23, p. 8578-8587Article in journal (Refereed) Published
Abstract [en]

Large greenhouse gas emissions occur via the release of carbon dioxide (CO2) and methane (CH4) from the surface layer of lakes. Such emissions are modeled from the air-water gas concentration gradient and the gas transfer velocity (k). The links between k and the physical properties of the gas and water have led to the development of methods to convert k between gases through Schmidt number normalization. However, recent observations have found that such normalization of apparent k estimates from field measurements can yield different results for CH4 and CO2. We estimated k for CO2 and CH4 from measurements of concentration gradients and fluxes in four contrasting lakes and found consistently higher (on an average 1.7 times) normalized apparent k values for CO2 than CH4. From these results, we infer that several gas-specific factors, including chemical and biological processes within the water surface microlayer, can influence apparent k estimates. We highlight the importance of accurately measuring relevant air-water gas concentration gradients and considering gas-specific processes when estimating k.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2023. Vol. 57, no 23, p. 8578-8587
Keywords [en]
carbon dioxide, gas transfer, greenhouse gas, lake, methane, piston velocity
National Category
Ecology Climate Research
Identifiers
URN: urn:nbn:se:umu:diva-212016DOI: 10.1021/acs.est.2c09230ISI: 001010431600001PubMedID: 37253265Scopus ID: 2-s2.0-85163261934OAI: oai:DiVA.org:umu-212016DiVA, id: diva2:1782257
Funder
EU, Horizon 2020, 725546Knut and Alice Wallenberg Foundation, 2016.0083Swedish Research Council, 2016-04829Swedish Research Council Formas, 2018-01794Available from: 2023-07-13 Created: 2023-07-13 Last updated: 2023-07-13Bibliographically approved

Open Access in DiVA

fulltext(2007 kB)50 downloads
File information
File name FULLTEXT01.pdfFile size 2007 kBChecksum SHA-512
0d671b94fdaf9c674deb6d4513fc000cc56dcd2a178fed5ae602b0cd98e7e9cb40b6e0c018be2768e34b1422d73183e665b3f80626c40c39ed26d973a577f18c
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Authority records

Karlsson, Jan

Search in DiVA

By author/editor
Karlsson, Jan
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Environmental Science and Technology
EcologyClimate Research

Search outside of DiVA

GoogleGoogle Scholar
Total: 50 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 280 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf