ArticleNature communications2022
Organic matter composition and greenhouse gas production of thawing subsea permafrost in the Laptev Sea.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 43 citations in OpenAlex.
- Onboard Large-Scale Isolation and Characterization of Three Reference DOM Materials from Siberian Arctic Shelf Marine Water.ACS omega · 2025Article
- Permafrost thaw subsidence, sea-level rise, and erosion are transforming Alaska's Arctic coastal zone.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Subsea permafrost organic carbon stocks are large and of dominantly low reactivity.Scientific reports · 2023Article
- A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf.Sensors (Basel, Switzerland) · 2023Review
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Authors and funding
15 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Subsea permafrost represents a large carbon pool that might be or become a significant greenhouse gas source. Scarcity of observational data causes large uncertainties. We here use five 21-56 m long subsea permafrost cores from the Laptev Sea to constrain organic carbon (OC) storage and sources, degradation state and potential greenhouse gas production upon thaw. Grain sizes, optically-stimulated luminescence and biomarkers suggest deposition of aeolian silt and fluvial sand over 160 000 years, with dominant fluvial/alluvial deposition of forest- and tundra-derived organic matter. We estimate an annual thaw rate of 1.3 ± 0.6 kg OC m
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