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Sökning: hsv:(NATURVETENSKAP) hsv:(Geovetenskap och miljövetenskap) hsv:(Geologi) > Global carbon dioxi...

Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions

Gomez-Gener, L. (författare)
Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland,Ecole Polytech Fed Lausanne, Switzerland; Umea Univ, Sweden
Rocher-Ros, Gerard (författare)
Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Umea Univ, Sweden
Battin, T. (författare)
Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland,Ecole Polytech Fed Lausanne, Switzerland
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Cohen, M. J. (författare)
School of Forest Resources and Conservation, University of Florida, FL, Gainesville, United States,Univ Florida, FL 32611 USA
Dalmagro, H. J. (författare)
University of Cuiabá, Cuiabá, Brazil,Univ Cuiaba, Brazil
Dinsmore, K. J. (författare)
Centre for Ecology and Hydrology, Bush Estate, Penicuik, United Kingdom,Ctr Ecol & Hydrol, Scotland
Drake, T. W. (författare)
Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland,Swiss Fed Inst Technol, Switzerland
Duvert, C. (författare)
Research Institute for the Environment and Livelihoods, Charles Darwin University, NT, Darwin, Australia,Charles Darwin Univ, Australia
Enrich Prast, Alex (författare)
Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Fluminense Fed Univ, Brazil
Horgby, A. (författare)
Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland,Ecole Polytech Fed Lausanne, Switzerland
Johnson, M. S. (författare)
Institute for Resources, Environment and Sustainability, University of British Columbia, BC, Vancouver, Canada; Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, BC, Vancouver, Canada,Univ British Columbia, Canada; Univ British Columbia, Canada
Kirk, L. (författare)
School of Natural Resources and Environment, University of Florida, FL, Gainesville, United States,Univ Florida, FL USA
Machado-Silva, F. (författare)
Post-Graduate Program in Geosciences (Environmental Geochemistry), Chemistry Institute, Fluminense Federal University, Niterói, Brazil,Fluminense Fed Univ, Brazil
Marzolf, N. S. (författare)
Department of Forestry and Environmental Resources, North Carolina State University, NC, Raleigh, United States,North Carolina State Univ, NC 27695 USA
McDowell, M. J. (författare)
Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, British Columbia, Canada; Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada
McDowell, W. H. (författare)
Department of Natural Resources and the Environment, University of New Hampshire, NH, Durham, United States,Univ British Columbia, Canada; Univ British Columbia, Canada; Univ New Hampshire, NH 03824 USA
Miettinen, H. (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management,Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden,Swedish Univ Agr Sci, Sweden
Ojala, A. K. (författare)
Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Helsinki, Finland,Univ Helsinki, Finland
Peter, H. (författare)
Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland,Ecole Polytech Fed Lausanne, Switzerland
Pumpanen, J. (författare)
Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland,Univ Eastern Finland, Finland
Riveros-Iregui, D. A. (författare)
Department of Geography, University of North Carolina at Chapel Hill, NC, Chapel Hill, United States,Univ N Carolina, NC 27515 USA
Santos, Isaac R. (författare)
Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden,Univ Gothenburg, Sweden
Six, J. (författare)
Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland,Swiss Fed Inst Technol, Switzerland
Stanley, E. H. (författare)
Center for Limnology, University of Wisconsin-Madison, WI, Madison, United States,Univ Wisconsin, WI 53706 USA
Wallin, Marcus (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden,Swedish Univ Agr Sci, Sweden
White, S. A. (författare)
National Marine Science Centre, Southern Cross University, NSW, Coffs Harbour, Australia,Southern Cross Univ, Australia
Sponseller, Ryan A. (författare)
Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Umea Univ, Sweden
Ran, L. S. (författare)
Department of Geography, The University of Hong Kong, Pokfulam, Hong Kong,Univ Hong Kong, Peoples R China
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 (creator_code:org_t)
2021-04-15
2021
Engelska.
Ingår i: Nature Geoscience. - : Springer Science and Business Media LLC. - 1752-0894 .- 1752-0908. ; 14
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Carbon dioxide (CO2) emissions to the atmosphere from running waters are estimated to be four times greater than the total carbon (C) flux to the oceans. However, these fluxes remain poorly constrained because of substantial spatial and temporal variability in dissolved CO2 concentrations. Using a global compilation of high-frequency CO2 measurements, we demonstrate that nocturnal CO2 emissions are on average 27% (0.9 gC m(-2) d(-1)) greater than those estimated from diurnal concentrations alone. Constraints on light availability due to canopy shading or water colour are the principal controls on observed diel (24 hour) variation, suggesting this nocturnal increase arises from daytime fixation of CO2 by photosynthesis. Because current global estimates of CO2 emissions to the atmosphere from running waters (0.65-1.8 PgC yr(-1)) rely primarily on discrete measurements of dissolved CO2 obtained during the day, they substantially underestimate the magnitude of this flux. Accounting for night-time CO2 emissions may elevate global estimates from running waters to the atmosphere by 0.20-0.55 PgC yr(-1). Failing to account for emission differences between day and night will lead to an underestimate of global CO2 emissions from rivers by up to 0.55 PgC yr(-1), according to analyses of high-frequency CO2 measurements.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)

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Geology

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