d093b7b9-f590-48dd-8206-74d239cdbf30 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 2025-01-07 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 Digital Elevation Models and Basal Melt Maps of Pine Island Glacier Ice Shelf using CryoSat-2 Surface Elevation data, 2011-2023 2025-01-07 creation 2025-01-07 revision 2025-01-07 publication 2025-01-07 released 1.0 https://doi.org/10.5285/d093b7b9-f590-48dd-8206-74d239cdbf30 doi GB/NERC/BAS/PDC/01973 https://data.bas.ac.uk/ NE/T00939X/1 award Please cite this item as: Lowery, K., Dutrieux, P., Holland, P., Hogg, A., Gourmelen, N., & Wallis, B. (2025). Digital Elevation Models and Basal Melt Maps of Pine Island Glacier Ice Shelf using CryoSat-2 Surface Elevation data, 2011-2023 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/d093b7b9-f590-48dd-8206-74d239cdbf30 This dataset provides Digital Elevation Models (DEMs) and Lagrangian Basal Melt Maps of Pine Island Glacier. DEMs were created using CryoSat-2 SARIn swath processed surface elevation data and cover 2011-2023. Melt Maps were calculated using the Lagrangian method using ITS_LIVE annual velocity datasets and cover 2012-2022. Katie Lowery was supported by the Natural Environment Research Council (NERC) Satellite Data in Environmental Science (SENSE) Centre for Doctoral Training (grant no. NE/T00939X/1). No credit. completed Lowery, Katie British Antarctic Survey Researcher author Dutrieux, Pierre British Antarctic Survey Researcher author Holland, Paul British Antarctic Survey Researcher author Hogg, Anna University of Leeds Researcher author Gourmelen, Noel University of Edinburgh Researcher author Wallis, Benjamin University of Leeds 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 > Glacier Elevation/Ice Sheet Elevation EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Growth/Melt EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers EARTH SCIENCE > Hydrosphere > Snow/Ice > Ice Growth/Melt 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 CryoSat-2 Pine Island Glacier ice shelf melting ice shelves remote sensing theme Pine Island Glacier, Amundsen Sea Antarctica 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 Data supplied under Open Government Licence v3.0 otherRestrictions No restrictions apply. url url crossReference doi doi crossReference url url largerWorkCitation textTable eng utf8 elevation environment imageryBaseMapsEarthCover inlandWaters oceans -103.03 -98.4 -75.38 -74.46 2011-07-01 2023-07-31 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 application/x-hdf application/netcdf bytes 466196890 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=d093b7b9-f590-48dd-8206-74d239cdbf30 WWW:LINK-1.0-http--link Get Data Download data download bytes 466196890 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=d093b7b9-f590-48dd-8206-74d239cdbf30 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: DEMs were created using a time-centering method applied to CryoSat-2 SARIn swath processed surface elevation measurements. The dataset contains monthly DEMs, though data within 6 months of the posted month have been used. DEMs have a spatial resolution of 250 m. Elevation is given as height above the WGS84 ellipsoid. Basal melt maps have been calculated using the Lagrangian method. Advection and divergence in this equation were taken from ITS_LIVE annual datasets and surface mass balance changes from RACMO model outputs. Melt maps are also at a 250 m spatial resolution. CryoSat-2 SARIn data was accessed in March 2023. ITS_LIVE velocity data prior to 2019 was downloaded in October 2023, using v1. Datasets from 2019 were downloaded in June 2024 and v2 are used. RACMO2.3p2 output forced the IMAU-FDM v1.2A firn model. Data quality: Although the data is posted monthly, each DEM contains a years worth of CryoSat-2 elevation observations which have been time centred on the given month. Each melt map contains a combination of 3 year's worth of elevation data. In the earlier parts (prior to 2014) of the dataset, some areas of the ice shelf are missing. This is because of a lack of accurate velocity data in these areas. Missing values are expressed as NaN in the netCDF files. asNeeded completed