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Monthly mean air temperatures from Tarfala Research Station, Kebnekaise Mountains, 1965 – 2022

This dataset contains monthly mean air temperatures from Tarfala Research Station, acquired since 1965 and updated annually. For the years 1946 – 1964,...

Monthly mean air temperatures from Tarfala Research Station, Kebnekaise Mountains, Northern Sweden

This dataset contains monthly mean air temperatures from Tarfala Research Station, acquired since 1965 and updated annually. Tarfala Research Station (TRS),...

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...

Temperatures in subarctic lakes on the Stordalen Mire, Abisko, Northern Sweden

Water temperature measurements in three small post-glacial subarctic lakes (Inre Harrsjön, Mellersta Harrsjön, Villasjön) surrounding the Stordalen Mire, 9...

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...

Data from expedition Ryder, off North Greenland, 2019

The Ryder 2019 Expedition was carried out during summer 2019 in the Arctic Ocean off Northwest Greenland. The main target was Sherard Osborn Fjord where Ryder...

Data from expedition SWERUS-C3, Arctic Ocean, 2014

The SWERUS-C3 (Swedish – Russian – US Arctic Ocean Investigation of Climate-Cryosphere-Carbon Interactions) expedition was carried out during the summer of...

Nitrous oxide data collected in the Siberian Arctic Ocean in summer 2014 and autumn 2020

This dataset includes observational data related to nitrous oxide (N₂O) in the Kara, Laptev and East Siberian Sea, generated during the ISSS-2020 expedition...

Age model and physical properties of sediment from the Arctic Siberian margin, core SWERUS-L2-31PC

Age model and sedimentological data for a marine sediment core collected on the Lomonosov Ridge adjoining the East Siberian shelf, Arctic Ocean. The dataset...

In-situ Temperature, Thermal Conductivity and Heat Flow of East Siberian Margin Sediments

Summary of published data used to calculate marine heat flow at sediment coring stations on SWERUS-C3-L2 in 2014. The data file includes A.) Summary table of...

Marine sediment core data from Chukchi Sea, Arctic Ocean, core SWERUS-L2-2-PC1

Data from sediment core SWERUS-L2-2-PC1. The core was collected during the SWERUS-C3 expedition with icebreaker Oden 2014. Core length: 8.2 m. Coring site:...

Marine sediment core data from Chukchi Sea, Arctic Ocean, core SWERUS-L2-4-PC1

Data from sediment core SWERUS-L2-4-PC1. The core was collected during the SWERUS-C3 expedition with icebreaker Oden 2014. Core length: 6.1 m. Coring site:...

Marine sediment core data from De Long Trough, Siberian margin and slope, Arctic Ocean

Sediment core data from four sites in the East Siberian Sea, Arctic Ocean. The cores were collected during the SWERUS-C3 expedition with icebreaker Oden 2014....

Sub-bottom profiling data from Herald Canyon, Chukchi Sea

Sub-bottom profiling data from Herald Canyon, Arctic Ocean, acquired using the Kongsberg SBP 120 (2–7 kHz; 3° × 3°) chirp sonar installed in icebreaker...

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...

Rhizosphere priming data for the northern circumpolar permafrost area, 2010⁠ – ⁠2100

The dataset contains output from the PrimeSCale model that combines observation-based data on plant and soil properties to quantify the rhizosphere priming...

Numerically modelled transport pathways in degrading permafrost

A numerical model which couples heat and water conservation equations combined with a post-processing routine for particle tracking of water pathways is used...

Biomes of the Last Glacial Maximum permafrost region

This spatial data set was constructed from empirical maps of biomes at the Last Glacial Maximum (LGM; 19 – 26,5 kyr BP) across the Northern LGM permafrost...

Ground temperature, thaw depth and snow depth in a permafrost peatland in Tavvavuoma, northern Sweden

This dataset contains information on ground temperature, late season thaw depth and snow depth variability within a permafrost peatland in northern Sweden. The...

Holocene plant macrofossil and geochemical data from permafrost peatlands in Tavvavuoma, Sweden, and Finnmark, Norway

This dataset contains detailed information on plant macrofossils, bulk density, loss on ignition, and carbon and nitrogen content at four permafrost peatland...

Litter bag decomposition at Stordalen mire 2011 – 2013

The dataset contains litter decomposition rates using 3 litter bags collections and their covariate environmental data. We measured in-situ decomposition of...

Maps of northern peatland extent, depth, carbon storage and nitrogen storage

This dataset contains GIS grids of peatland properties for the full northern hemisphere, north of 23° N. The files include peatland extent, permafrost extent,...

A high spatial resolution soil carbon and nitrogen dataset for the northern permafrost region

This spatial dataset is quantifying soil organic carbon (SOC) and total nitrogen (TN) storage with their carbon to nitrogen ratio (C/N) in soils of the...

Detailed pedon data on soil carbon and nitrogen for the northern permafrost region

Soils in the northern high latitudes are a key component in the global carbon cycle; the northern permafrost region covers 22% of the Northern Hemisphere and...

High resolution datasets of soil organic carbon and nitrogen stocks in Canadian lowland tundra

This dataset is a quantification soil organic carbon (SOC) and nitrogen (N) stocks for two study sites in Canadian lowland tundra at a spatial resolution of 2...

Terrestrial dissolved organic carbon in northern permafrost from 2000 – 2022

This dataset contains dissolved organic carbon (DOC) concentrations and ancillary biogeochemical and environmental data, collected from previously published...

The Northern Circumpolar Soil Carbon Database

Information and data from the Northern Circumpolar Soil Carbon Database (NCSCD), a spatial dataset created for the purpose of quantifying storage of organic...