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Methane concentrations from surface water on the Stordalen Mire, Abisko, Northern Sweden

This dataset provides surface concentration measurements of dissolved methane (CH₄), a strong climate forcing trace gas, in the surface water of three lakes...

Accumulation rates, isotopic and molecular data of terrestrial carbon in sediments of the Laptev Sea continental margin

This dataset contains isotopic (¹³C and ¹⁴C) and molecular biomarker data (lignin phenols, n-alkanes, n-alkanoic acids) of organic carbon in surface...

Bulk organic carbon and biomarker data for the marine sediment core SWERUS-L2-4-PC1, Chukchi Sea, Arctic Ocean

This dataset was created to reconstruct the historical remobilization of permafrost carbon from the Beringian landmass to the Chukchi Sea. We analyzed carbon...

Bulk organic carbon, isotopes and terrigenous biomarkers for the marine sediment core SWERUS-L2-31-PC1

This dataset contains biochemical data analyzed in the sediment core SWERUS-L2-31-PC1, an archive spanning over the past 27,000 years recovered from the...

Concentrations of carbon, nitrogen, lignin and lipid biomarkers in subsea permafrost of the inner Laptev Sea

This dataset includes organic carbon and nitrogen content, ¹³C content of organic carbon, as well as concentrations of lignin phenols, n-alkanes, n-alkanoic...

Isotope data (Δ¹⁴C, δ¹³C and δD) for dissolved methane at the Outer Eurasian Arctic Shelf

Isotope data for dissolved methane determined in samples collected from vertical and bottom-water horizontal casts in the outer Laptev Sea. The data was...

Lithology and thermal data from subsea permafrost drillcores of the SE Laptev Sea

Lithology and thermal data from four drill cores used in a study that documents current rates and mechanisms of subsea permafrost degradation in the East...

Organic carbon data from the Eurasian Arctic Shelf

Percentage of permafrost organic carbon resequestered by iron oxides in the Eurasian Arctic Shelf. Overall, the 15 ± 5% in the Laptev Sea and 6.4 ± 5% in...

Seawater Carbonate System, Ocean Acidification and Related Parameters in the East Siberian Arctic Shelf Seas

This dataset builds on an order of magnitude more observations than reports to date on Ocean Acidification (OA) in the Arctic Ocean; and, for the first time in...

Sources and accumulation rates of terrestrial carbon in circum-Arctic shelf sediments

This dataset contains terrestrial organic carbon (terrOC) mass accumulation rates in surface sediments of the seven circum-Arctic shelf seas, observational...

Terrigenous organic matter biomarker data at high spatial coverage over the East Siberian Arctic Shelf

This data set contains observations of molecular biomarkers for terrigenous organic matter (terr-OM) at high spatial coverage across the East Siberian Arctic...

The Circum-Arctic Sediment Carbon Database — CASCADE

The Circum-Arctic Sediment CArbon DatabasE (CASCADE) was established to curate data on concentrations of organic carbon (OC) and total nitrogen (TN), OC...

Content of carbon isotopes (¹³C and ¹⁴C) in organic carbon pools in terrestrial Siberia

This dataset represents a literature compilation of carbon isotope data of four terrestrial organic carbon pools, (1) litter and organic layers in northern...

Water chemistry and geospatial characteristics of different sub-catchments in the Mackenzie River basin, Canada

The dataset presents a water chemistry characterisation in 19 different locations across the Mackenzie River basin collected in June 2018 and repeated samples...