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GRiMeDB :
GRiMeDB : the global river methane database of concentrations and fluxes
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- Stanley, Emily H. (författare)
- Center for Limnology, University of Wisconsin-Madison, WI, Madison, United States
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- Loken, Luke C. (författare)
- Center for Limnology, University of Wisconsin-Madison, WI, Madison, United States; U.S. Geological Survey, Upper Midwest Science Center, WI, Madison, United States
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- Casson, Nora J. (författare)
- Department of Geography, University of Winnipeg, MB, Winnipeg, Canada
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- Oliver, Samantha K. (författare)
- U.S. Geological Survey, Upper Midwest Science Center, WI, Madison, United States
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- Sponseller, Ryan A. (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Wallin, Marcus (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment
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- Zhang, Liwei (författare)
- Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China
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- Rocher-Ros, Gerard (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management
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Center for Limnology, University of Wisconsin-Madison, WI, Madison, United States Center for Limnology, University of Wisconsin-Madison, WI, Madison, United States; US. Geological Survey, Upper Midwest Science Center, WI, Madison, United States (creator_code:org_t)
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- Copernicus Publications, 2023
- 2023
- Engelska.
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Ingår i: Earth System Science Data. - : Copernicus Publications. - 1866-3508 .- 1866-3516. ; 15:7, s. 2879-2926
- Relaterad länk:
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https://doi.org/10.5...
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https://umu.diva-por... (primary) (Raw object)
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https://pub.epsilon.... (primary) (Raw object) (free)
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https://urn.kb.se/re...
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https://doi.org/10.5...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Despite their small spatial extent, fluvial ecosystems play a significant role in processing and transporting carbon in aquatic networks, which results in substantial emission of methane (CH4) into the atmosphere. For this reason, considerable effort has been put into identifying patterns and drivers of CH4 concentrations in streams and rivers and estimating fluxes to the atmosphere across broad spatial scales. However, progress toward these ends has been slow because of pronounced spatial and temporal variability of lotic CH4 concentrations and fluxes and by limited data availability across diverse habitats and physicochemical conditions. To address these challenges, we present a comprehensive database of CH4 concentrations and fluxes for fluvial ecosystems along with broadly relevant and concurrent physical and chemical data. The Global River Methane Database (GriMeDB; 10.6073/pasta/f48cdb77282598052349e969920356ef, Stanley et al., 2023) includes 24ĝ€¯024 records of CH4 concentration and 8205 flux measurements from 5029 unique sites derived from publications, reports, data repositories, unpublished data sets, and other outlets that became available between 1973 and 2021. Flux observations are reported as diffusive, ebullitive, and total CH4 fluxes, and GriMeDB also includes 17ĝ€¯655 and 8409 concurrent measurements of concentrations and 4444 and 1521 fluxes for carbon dioxide (CO2) and nitrous oxide (N2O), respectively. Most observations are date-specific (i.e., not site averages), and many are supported by data for 1 or more of 12 physicochemical variables and 6 site variables. Site variables include codes to characterize marginal channel types (e.g., springs, ditches) and/or the presence of human disturbance (e.g., point source inputs, upstream dams). Overall, observations in GRiMeDB encompass the broad range of the climatic, biological, and physical conditions that occur among world river basins, although some geographic gaps remain (arid regions, tropical regions, high-latitude and high-altitude systems). The global median CH4 concentration (0.20ĝ€¯μmolL-1) and diffusive flux (0.44ĝ€¯mmolm-2d-1) in GRiMeDB are lower than estimates from prior site-averaged compilations, although ranges (0 to 456ĝ€¯μmolL-1 and -136 to 4057ĝ€¯mmolm-2d-1) and standard deviations (10.69 and 86.4) are greater for this larger and more temporally resolved database. Available flux data are dominated by diffusive measurements despite the recognized importance of ebullitive and plant-mediated CH4 fluxes. Nonetheless, GriMeDB provides a comprehensive and cohesive resource for examining relationships between CH4 and environmental drivers, estimating the contribution of fluvial ecosystems to CH4 emissions, and contextualizing site-based investigations.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (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 -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
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