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Higher apparent gas...
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Pajala, GustavLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
(author)
Higher apparent gas transfer velocities for CO2 compared to CH4 in small lakes
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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American Chemical Society (ACS),2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:umu-212016
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-212016URI
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https://doi.org/10.1021/acs.est.2c09230DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-196095URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Funding Agencies|European Research Council (ERC); European Union [725546]; Knut and Alice Wallenberg Foundation [2016.0083]; Swedish Research Council [2016-04829]; Swedish Research Council for Sustainable Development (FORMAS) [2018-01794]; US National Science Foundation (Division of Environmental Biology) [1753856]
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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.
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Rudberg, DavidLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)davru94
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Gålfalk, MagnusLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)magga04
(author)
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Melack, John MichaelDepartment 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,Univ Calif Santa Barbara, CA 93117 USA; Univ Calif Santa Barbara, CA 93106 USA
(author)
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Macintyre, SallyDepartment 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; Marine Science Institute, University of California, Isla Vista, Santa Barbara, California, United States,Univ Calif Santa Barbara, CA 93117 USA; Univ Calif Santa Barbara, CA 93106 USA; Univ Calif Santa Barbara, CA 93117 USA
(author)
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Karlsson, Jan,1974-Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Umea Univ, Sweden(Swepub:umu)jaka0003
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Sawakuchi, HenriqueLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)henol98
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Schenk, JonathanLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)jonsc68
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Sieczko, AnnaLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)annsi08
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Sundgren, IngridLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)ingsu87
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Nguyen, Thanh DucLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)thang92
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Bastviken, DavidLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)davba48
(author)
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Linköpings universitetTema Miljöförändring
(creator_code:org_t)
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In:Environmental Science and Technology: American Chemical Society (ACS)57:23, s. 8578-85870013-936X1520-5851
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Pajala, Gustav
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Rudberg, David
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Gålfalk, Magnus
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Melack, John Mic ...
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Macintyre, Sally
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Karlsson, Jan, 1 ...
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Sawakuchi, Henri ...
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Schenk, Jonathan
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Sieczko, Anna
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Sundgren, Ingrid
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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Environmental Sc ...
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Umeå University
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Linköping University