Published August 3, 2024 | Version 1
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Methane concentrations and oxidation rates in land-terminating glacial runoff: measurements from three glacial rivers and a paraglacial lake in Iceland and a literature review

Description

This dataset contains methane measurements from Icelandic lakes and rivers during the summer of 2018 and 2019. This includes data from net methane oxidation assays with sediment and overlying water from one paraglacial lake and one glacial river, and surface methane concentration data from grab samples in 3 glacial streams and 15 Icelandic lakes (1 of which is paraglacial).  The dataset also contains methane concentration data from a synthesis of relevant aquatic ecosystems, used to compare against the original measurements collected. 

Data and Literature Review Synthesis is supplement to Strock et al. 2024 Oxidation is a potentially significant methane sink in land-terminating glacial runoff published in Nature Scientific Reports. 

This study was funded by: National Geographic Society Changing Polar Systems grant (CP4-162R-18); In-kind support from the U.S. Geological Survey; Dickinson College Research and Development; Churchill Exploration Fund at Dickinson College 

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Additional details

Related works

Is supplement to
Publication: 10.1038/s41598-024-73041-3 (DOI)

Dates

Accepted
2024-09-17

References

  • Burns, R. et al. Direct isotopic evidence of biogenic methane production and efflux from beneath a temperate glacier. Sci. Rep. 8, 17118 (2018).
  • Dieser, M. et al. Molecular and biogeochemical evidence for methane cycling beneath the western margin of the Greenland Ice Sheet. ISME J. 8, 2305–2316 (2014).
  • Kleber, G. E. et al. Groundwater springs formed during glacial retreat are a large source of methane in the high Arctic. Nat. Geosci. 16, 7, 597-604 (2023).
  • Lamarche-Gagnon, G. et al. Greenland melt drives continuous export of methane from the ice-sheet bed. Nature 565, 73–77 (2019).
  • Lawler, D. Sediment and solute yield from the Jökulsá á Sólheimasandi glacierized river basin, southern Iceland. Springer, Dordrecht, 303-332 (1991).
  • Michaud, A. B. et al. Microbial oxidation as a methane sink beneath the West Antarctic Ice Sheet. Nat. Geosci. 10, 582–586 (2017).
  • Rosentreter, J. A. et al. Half of global methane emissions come from highly variable aquatic ecosystem sources. Nat. Geosci. 14, 225–230 (2021).
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  • Wanninkhof, R. Relationship between wind speed and gas exchange over the ocean revisited: Gas exchange and wind speed over the ocean. Limnol. Oceanogr. Methods 12, 351–362 (2014).