148d0f6e-b4ec-45cc-af76-e0dad9e9faa5 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2025-09-16 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Carbon Properties of Sediment Cores from the Southern Ocean and Wider Polar Front 2025-09-16 creation 2025-09-16 revision 2025-09-16 publication 2025-09-16 released 1.0 https://doi.org/10.5285/148d0f6e-b4ec-45cc-af76-e0dad9e9faa5 doi GB/NERC/BAS/PDC/02086 https://data.bas.ac.uk/ Please cite this item as: Sinclair, D., Gossmann, T., Barnes, D., & Hillenbrand, C. (2025). Carbon Properties of Sediment Cores from the Southern Ocean and Wider Polar Front (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/148d0f6e-b4ec-45cc-af76-e0dad9e9faa5 This dataset presents a harmonised collection of sediment carbon measurements from over 2,000 cores collected across the Southern Ocean and Southern Hemisphere (wider polar front), south of 49degrees. The dataset was compiled to enable quantitative assessments of sedimentary carbon stocks and identify regional hotspots and cold spots of blue carbon, as well as pinpointing trends and gaps in data collection. Drawing on published literature, data repositories, cruise archives, and correspondence with researchers, the compilation addresses longstanding fragmentation and inconsistency in sediment carbon reporting. The database includes measurements of total organic and inorganic carbon (TOC, TIC/CaCO3), and where possible some contextual biological information such as porosity, grain density and grain size. Additionally, where possible, data is georeferenced and cited (inclusive of access links) and further complimentary metadata is provided. The dataset may provide a key resource for future conservation planning, carbon accounting, and potentially climate modelling in polar marine ecosystems. This project was funded by the World Wildlife Fund (WWF) grant number GB096001. No credit. completed Sinclair, Duncan British Antarctic Survey Researcher author Gossmann, Theresa British Antarctic Survey Researcher author Barnes, David British Antarctic Survey Researcher author Hillenbrand, Claus-Dieter British Antarctic Survey Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Land Surface > Soils > Carbon EARTH SCIENCE > Oceans > Marine Sediments > Sediment Composition EARTH SCIENCE > Oceans > Marine Sediments theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Southern Ocean benthic carbon core marine sediment theme Antarctica place Land cover Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions and supplied under Open Government Licence v.3 (). otherRestrictions None url url crossReference textTable eng utf8 climatologyMeteorologyAtmosphere 179.9333 -179.62 -78.267 -49.0 1957-01-01 2021-12-31 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor bytes 1 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=148d0f6e-b4ec-45cc-af76-e0dad9e9faa5 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Data were systematically compiled from legacy databases, published articles, institutional repositories, and cruise reports. Each record was assigned a unique Core ID (as provided by authors) and standardised metadata including geographic coordinates, water depth, collection date, collection method and citation. Manual data entry was largely required due to inconsistencies in carbon reporting and significant errors uncovered during compilation. Carbon measurements were collated in 1cm intervals up to 1m below the seafloor. Lookup tables were used for sediment classification based on particle size thresholds following a current best practise adapted Folk classification system. Data collection: Due to the manual requirements of the compilation, data assembly was conducted through Microsoft Excel (version 2408). Geographic presentation of data was conducted using ArcGIS Pro 3.2.1. Data quality: In some instances data has been averaged to account for intervals presented in this study (e.g., 0 - 0.5cm and 0.5 - 1cm have been averaged to produce a 0 - 1cm value). This may cause under or overestimations of carbon values in some instances, but is a necessary step to simplify the usage and presentation of the data. Where possible the database has been combed for null or obsolete values (e.g., negative or overly inflated carbon values, geolocations outside of scope), however due to the scale of data reported it is highly possible that errors will occur. As this is a compilation of other works (secondary data), assurances for data accuracy cannot be given. Any discrepancies or concerns with data presented here should be directed to the authors or data holders. When potential inaccuracies were uncovered during collation, authors were contacted for clarification. Vagueness (e.g., comments such as "most, but not all, of the cores in this study analyse the top 2cm of sediment") and seemingly incorrect values were continually present when identifying data for this dataset, therefore it is imperative to contact the cited authors if any additional clarification is required. Unknown metadata values are either listed as NaN or specified as unknown. Where appropriate data values less than or equal to 0.0 have been listed as "NaN" as they are believed to be either incorrect (negative values) or redundant (0 values). asNeeded completed