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Content of carbon isotopes (¹³C and ¹⁴C) in organic carbon pools in terrestrial Siberia
The dataset consists of one xlsx file with four sheets, listing (1) ¹³C and ¹⁴C data of litter and organic layers in northern Russia, Scandinavia, Canada and Alaska; (2) ¹³C and...
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NDVI trend from Landsat time series, 1999-2014, Alaskan Arctic Coastal Plain (US)
Normalized difference vegetation index (NDVI) trend map was computed for the Alaskan Arctic Coastal Plain between 1999 and 2014. The decadal trend of each pixel was computed...
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DARTS: Multi-year database of AI detected retrogressive thaw slumps (RTS) and active layer detachment slides (ALD)...
This dataset, called DARTS, comprises footprints of retrogressive thaw slump (RTS) and active layer detachments slides (ALD) identified and quantified using an automated deep...
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Pan-Arctic thermokarst lagoon distribution, area and classification from Landsat images, 1984 to 2021
Thermokarst lagoons develop in permafrost lowlands along the ice-rich Arctic coast when thermokarst lakes or basins with bottom elevations at or below sea level are breached by...
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Spatial lake dynamics and lake-ice datasets of the Northern Seward and Baldwin Peninsulas in Alaska
The data publication contains supplementary data to the article "Supplementary Dataset to: The catastrophic thermokarst lake drainage events of 2018 in northwestern Alaska:...
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Total above-ground biomass of 25 sites from 2018 central Lena Delta (RU)
Field investigations were performed in the central Lena Delta. In total, 25 sites were investigated. The sites were chosen to represent a variety of vegetation communities of...
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Pan-Arctic Visualization of Landscape Change (2003-2022), Arctic PASSION Permafrost Service
This raster dataset, in Cloud Optimized GeoTIFF format (COG), provides information on land surface changes at the pan-arctic scale. Multispectral Landsat-5 TM, Landsat-7 ETM+,...
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T-MOSAiC 2021 myThaw data set, Circum-Arctic
The Terrestrial Multidisciplinary distributed Observatories for the Study of the Arctic Connections (T-MOSAiC) 2021 permafrost thaw data set provides standardized measurements...
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Pingo Database, 2022, Svalbard (NO)
The data contains the list of pingo and pingo-like forms over Svalbard archipelago. Each pingo is assigned with following data: coordinates, absolute height of pingo baseline,...
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Distribution and morphometry of pingos, western Canadian Arctic, Northwest Territories, (CA)
GIS shape files including spatial and morphometric data of pingos in the western Canadian Arctic and accompanying Excel spreadsheet summarizing metrics for pingos of differing...
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Inorganic and organic hydrochemistry of lakes and ponds in continuous permafrost landscapes in the western Canadian...
Between 2006 and 2015 inorganic and organic hydrochemical parameters and stable water isotope characteristics were measured in lakes and ponds in continuous permafrost...
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Ground layer above-ground biomass of 39 sites from 2018 central Chukotka (RU) - Raw data of dry weight for each...
Field investigations were performed in four areas: a treeless mountainous tundra (16-KP-04; Lake Rauchuagytgyn area), tundra-taiga transition zone (16-KP-01, Lake Ilirney area)...
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Ground layer above-ground biomass of 25 sites from 2018 central Lena Delta (RU) - Raw data of dry weight for each...
Field investigations were performed in the central Lena Delta. In total, 25 sites were investigated. The sites were chosen to represent a variety of vegetation communities of...
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Remote sensing reflectance (Rrs) of the surface water during 4 expeditions from spring to fall in 2019, Mackenzie...
Vertical profiles of downwelling irradiance (Ed) and upwelling radiance (Lu) were measured during legs 2, 3, and 4 using a Compact-Optical Profiling System (C-OPS) in an ICE-Pro...
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Particle absorption (aP) in the surface water during 4 expeditions from spring to fall in 2019, Mackenzie Delta Region (CA)
Absorbance of particles retained on GF/F (0.7 µm) filters was measured using a Varian Cary 100 spectrophotometer equipped with an integrated sphere. Absorbance and reflectance...
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Phytoplankton pigment concentrations measured by HPLC in the surface water during 4 expeditions from spring to fall...
The determination of phytoplankton using high performance liquid chromatography (HPLC) is detailed in Hooker et al. (2005; doi:10.1364/AO.44.000553) and Ras et al. (2008;...
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Stable water isotopes (δ18O, δD, d-excess) in the surface water during 4 expeditions from spring to fall in 2019,...
Water samples for stable isotopes were collected untreated in 10 mL HDPE vials, sealed tightly, stored in the dark at 4°C. Measurements were conducted at the laboratory facility...
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Dissolved organic carbon (DOC) concentration in the surface water during 4 expeditions from spring to fall in 2019,...
Water samples were filtered through 0.7 µm GF/F filter, and acidified with 25 µL Suprapur HCl (10 M) on the same day of sampling. DOC samples were stored and kept at 4°C in the...
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Bacteria cells in the surface water during 4 expeditions from spring to fall in 2019, Mackenzie Delta Region (CA)
Samples for bacterial abundance (1.5 mL) were preserved with glutaraldehyde (1% final concentration) and stored at -80°C. Samples were stained with SYBRTM Green I (Thermofisher...
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Particulate organic carbon (POC) and particulate organic nitrogen (PON) concentrations in the surface water during 4...
Particulate organic carbon (POC) and particulate organic nitrogen (PON) concentrations were obtained from water samples filtered on precombusted (450°C for >5 hours) 47mm...