The Circum-Arctic Sediment Carbon Database — Carbon, nitrogen, isotopes and biomarkers in surface sediments of the Arctic Ocean
Jannik Martens, Evgeny Romankevich, Igor Semiletov, Birgit Wild, Bart van Dongen, Jorien Vonk, Tommaso Tesi, Natalia Shakhova, Oleg V. Dudarev, Denis Kosmach, Alexander Vetrov, Leopold Lobkovsky, Nikolay Belyaev, Robie Macdonald, Anna J. Pieńkowski, Timothy I. Eglinton, Negar Haghipour, Salve Dahle, Michael L. Carroll, Emmelie K.L. Åström, Jacqueline M. Grebmeier, Lee W. Cooper, Göran Possnert, Örjan Gustafsson
This dataset is part of the Circum-Arctic Sediment Carbon Database (CASCADE) and contains carbon data of surface sediments across the Arctic Ocean. Surface sediments are here defined as those collected from the water-sediment interface to a depth of maximum 5 cm.
This dataset permits studies of contemporary biogeochemical cycling in the Arctic Ocean using measured organic carbon (OC) concentrations, total nitrogen (TN) concentrations, OC isotopes (δ¹³C, Δ¹⁴C), and terrigenous biomarkers in surface sediments.
The dataset includes data from the published literature and yet unpublished data.
MarineArctic carbonCASCADESedimentCarbonArcticBiogeochemical cyclesClimate change
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Citation
References
Martens J, Romankevich E, Semiletov I, Wild B, van Dongen B, Vonk J, Tesi T, Shakhova N, Dudarev OV, Kosmach D, Vetrov A, Lobkovsky L, Belyaev N, Macdonald RW, Pieńkowski AJ, Eglinton TI, Haghipour N, Dahle S, Carroll ML, Åström EKL, Grebmeier JM, Cooper LW, Possnert G, Gustafsson Ö (2021) CASCADE – The Circum-Arctic Sediment CArbon DatabasE. Earth Syst Sci Data 13:2561 – 2572. https://doi.org/10.5194/essd-13-2561-2021
Data description
The dataset of surface sediments consists of one table, available as Excel spreadsheet (.xslx), tab-separated text (.txt) file, and as zipped GIS shapefile (in WGS84 geographic coordinate system):
- CASCADEsurfsed_v2.xlsx
- CASCADEsurfsed_v2.txt
- CASCADEsurfsed_v2_GISshp.zip
Data sheet structure
Each row in the CASCADE data sheet for surface sediments represents one oceanographic station, for which one or several carbon parameters were analyzed. All data and meta data for each station and measurement have are organized as columns in the data table. More detail about all parameters is provided in the companion manuscript.
Columns for ID and georeference
- CASCADE entry ID
- Sample code (as reported by data source)
- Latitude (decimal degrees)
- Longitude (decimal degrees)
- Upper sample depth (cm)
- Lower sample depth (cm)
- Water depth (m b.s.l.)
- Water depth based on IBCAO (m b.s.l.)
- Expedition or vessel name
- Sampling year
Carbon and Nitrogen (CN) data
- OC (%)
- TN (%)
- OC/TN
Carbon isotopes
- δ¹³C (‰ VPDB)
- Δ¹⁴C (‰)
Biomarkers
- n-alkanes C21-31 (µg g-1 OC)
- n-alkanes C27,29,31 (µg g-1 OC)
- n-alkanoic acids C20-30 (µg g-1 OC)
- lignin phenols (mg g-1 OC)
References
- Citation of CN data
- Citation of δ¹³C data
- Citation of Δ¹⁴C data
- Citation of biomarker data
Quality parameter and meta information
- Sediment sampler (e.g. grab sampler, multi corer, etc)
- Sample storage (0 for unknown, 1 for frozen, 2 for refrigerated)
- CN measurement (method of analysis)
- ¹³C measurement (method of analysis)
- AMS label
Comments
Please cite the companion paper in ESSD and the database when using the CASCADE.
The CASCADE is guided and continuously curated by scientists at the Bolin Centre for Climate Change
Version history
Version 2
Minor corrections and improvements of the dataset based on reviewer comments.
Version 1
Initial release.
Project
The development of the CASCADE was supported by the European Research Council (ERC Advanced Grant CC-TOP 695331 to ÖG), the EU H2020-funded project Nunataryuk (Grant 773421); the Swedish Research Council (Grant 2017-01601); the Knut and Alice Wallenberg Foundation (KAW contract 2011.0027 to ÖG) as part of the SWERUS-C3 program; the Russian Science Foundation (grant 21-77-30001 to IS; grant 18-05-60214 to ER and AV); the Russian Academy of Sciences (grant 0149-2019-0006); the Russian Science Foundation (grant 18-05-60214); the Research Council of Norway (grant 228107 to MLC; grant 223259); VISTA (grant 6172 to EKLÅ); the Research Council of Canada (NSERC Discovery Grant RGPIN-2016-05457 to AJP); the NERC research grant (NE/I024798/1); and the Dutch-NWO (Veni grant # 863.12.004).
Publisher
Bolin Centre Database
License
First name
Örjan
Last name or organisation
Gustafsson
Email address
Address
Department of Environmental Science; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Oceans > Ocean chemistry > Biogeochemical cycles
GCMD location
Ocean > Arctic Ocean
Dataset language
English