d8369a2f-8b50-4711-b492-ae773bfafd95 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 2019-08-01 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 Dissolved nutrient, carbon and algal abundance in the Dark Zone (Greenland Ice Sheet), July-August 2016 2019-08-01 creation 2019-08-01 revision 2019-08-01 publication 2019-08-01 released 1.0 https://doi.org/10.5285/d8369a2f-8b50-4711-b492-ae773bfafd95 doi GB/NERC/BAS/PDC/01215 https://data.bas.ac.uk/ NE/M021025/1 award Please cite this item as: Holland, A., Williamson, C., Tranter, M., & Anesio, A. (2019). Dissolved nutrient, carbon and algal abundance in the Dark Zone (Greenland Ice Sheet), July-August 2016 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/d8369a2f-8b50-4711-b492-ae773bfafd95 Dissolved inorganic and organic nutrient concentrations, dissolved organic carbon concentrations and glacier algal cell abundance are quantified for supraglacial environments in the Dark Zone of the Greenland Ice Sheet during July and August 2016. Samples include surface ice with varying degrees of visible impurities, cryoconite hole water and supraglacial stream water. Surface ice samples are comprised of the top 2 cm of a 1x1 m ice surface area. Dissolved inorganic nitrogen (DIN), dissolved organic nitrogen (DON), dissolved inorganic phosphorus (DIP), dissolved organic phosphorus (DOP) and dissolved organic carbon (DOC) were quantified for all ice surface, supraglacial stream and cryoconite hole water samples collected. Glacier algae abundance was quantified for ice surface samples. Field blank corrections were conducted for all DIN, DON, DIP, DOP and DOC data. Any values resulting below the instrument limit of detection were considered to be 0. Funding was provided by the NERC 'Black and Bloom' grant NE/M021025/1 and the Marie Sklodowska-Curie grant agreement No 675546. No credit. completed Holland, Alexandra University of Bristol Researcher author Williamson, Christopher University of Bristol Researcher author Tranter, Martyn University of Bristol Researcher author Anesio, Alexandre Aarhus University 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 > Cryosphere > Glaciers/Ice Sheets > Ice Sheets EARTH SCIENCE > Cryosphere > Snow/Ice > Snow/Ice Chemistry EARTH SCIENCE > Hydrosphere > Water Quality/Water Chemistry > Nutrients 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 Dissolved nutrients Dissolved organic carbon Glacier algae Greenland Ice Sheet Supraglacial environments theme IMAU (Utrecht) automatic weather station S6, K-Transect, south west Greenland Greenland place Elevation Meteorological geographical features Hydrography 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 This data is governed by the NERC data policy and supplied under Open Government Licence v.3 otherRestrictions No restrictions apply. url url crossReference url url crossReference url url largerWorkCitation textTable eng utf8 climatologyMeteorologyAtmosphere environment -49.3414 -49.3414 67.0786 67.0786 2016-07-01 2016-08-31 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 text/csv bytes 12288 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=d8369a2f-8b50-4711-b492-ae773bfafd95 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Data was gathered on the 2016 Black and Bloom field campaign and processed in LowTex Laboratory at the University of Bristol. Detailed sampling collection, processing and analysis can be found in the referenced publication. Spatial coverage: The main camp was located approximately 30 km inland from the ice margin, near to the 'S6' weather station on the K- transect. Samples were collected from a nearby designated area of approximately 500 × 500 m. Data collection: Instrumentation: Dissolved organic carbon was quantified using a Shimadzu TOC-L Organic Carbon Analyzer, with a high sensitivity catalyst. Dissolved nutrients were quantified using a Lachat QuickChem 8500 Series 2 Flow Injector Analyzer (FIA; QuickChem Method 31-107-06-1-I) and a Gallery Plus Automated Photometric Analyzer (Thermo Fisher Scientific, UK). Algal cell abundance was quantified using a Fuchs-Rosenthal haemocytometer (Lancing, UK) on a Leica DM 2000 epifluorescence microscope with attached MC120 HD microscope camera (Leica, Germany). Data quality: The LoD (limit of detection) for dissolved organic carbon (DOC) was 9.5 µM. Precision was ±2.4% and accuracy was -5.9%. LoD were 0.14 µM for nitrite (NO2-), 0.64 µM for total oxidized nitrogen (TON) and 0.87 µM for total dissolved nitrogen/dissolved organic nitrogen (TDN/DON). Precision was ±0.87% (NO2-), ±1.17% (NO3-) and ±0.63% (TDN/DON), and accuracy was - 4.04% (NO2-), -8.07% (NO3-) and -5.7% (TDN/DON). The LoD was 0.02 µM for phosphate and total dissolved phosphorus/dissolved organic phosphorus (PO43- and TDP/DOP). Precision was ±1.6% (PO43-) and ±3.1% (TDP/DOP), and accuracy was +2.3% (PO43-) and +5.0% (TDP/DOP). All measurements below the LoD were considered to be 0 for all statistical analyses. All dissolved inorganic nitrogen (DIN), DON, dissolved inorganic phosphorus (DIP), DOP and DOC data were water blank-corrected using values from the respective field procedural blanks. Additionally, all blank corrected values that were negative were assumed to be 0 for all statistical analyses. asNeeded completed