cbc6eb20-de95-457d-9000-c78b0ae9ee51 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 2025-11-26 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 MITgcm Model Outputs for the ocean in Pine Island Bay between 2011 and 2021 2025-11-26 creation 2025-11-26 revision 2025-11-26 publication 2025-11-26 released 1.0 https://doi.org/10.5285/cbc6eb20-de95-457d-9000-c78b0ae9ee51 doi GB/NERC/BAS/PDC/02118 https://data.bas.ac.uk/ NE/T00939X/1 award Please cite this item as: Lowery, K., Holland, P., Dutrieux, P., Hogg, A., & Gourmelen, N. (2025). MITgcm Model Outputs for the ocean in Pine Island Bay between 2011 and 2021 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/cbc6eb20-de95-457d-9000-c78b0ae9ee51 These are MITgcm ocean model outputs under Pine Island Glacier Ice Shelf. The simulations were designed to investigate the relative role of ocean conditions and ice shelf geometric changes between 2011 and 2021. Each set of runs contains one run for each year. BOTH-2011 to BOTH-2021 contain annual runs using the ocean and geometry from the corresponding year, OCEAN-2011 to OCEAN-2021 contain annual runs using the annual ocean conditions and 2012 ice shelf geometry and GEOM-2011 to GEOM-2021 contain annual runs using the 2012 ocean conditions and the annual ice shelf geometry. The ice shelf geometries used are derived from CryoSat-2 Digital Elevation Models (Lowery et al., 2025) and converted to ice shelf draft by assuming the ice is in hydrostatic equilibrium. The ocean boundary conditions are from observations from two moorings in Pine Island Bay. The output data contain fields of potential temperature, salinity, velocity and 2D variables from the boundary layer such as freshwater flux, thermal driving and sub-ice shelf velocity. The work took place as part of 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 Holland, Paul British Antarctic Survey Researcher author Dutrieux, Pierre British Antarctic Survey Researcher author Hogg, Anna University of Leeds Researcher author Gourmelen, Noel University of Edinburgh 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 > Sea Ice > Ice Growth/Melt EARTH SCIENCE > Oceans > Sea 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 Ice shelves Ice-ocean interactions Ocean modelling theme Pine Island Glacier, Amundsen Sea Antarctica place Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions public access limited according to Article 13(1)(e) of the INSPIRE Directive license Open Government Licence v3.0 otherRestrictions Data supplied under Open Government Licence v3.0 otherRestrictions Data under embargo until the publication of the associated paper doi doi crossReference doi doi crossReference doi doi dependency url url dependency url url crossReference doi doi crossReference textTable eng utf8 environment oceans -104.0 -98.0 -76.0 -74.0 2011-01-01 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 text/csv application/netcdf bytes 184683593728 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=cbc6eb20-de95-457d-9000-c78b0ae9ee51 WWW:LINK-1.0-http--link Get Data Download data download bytes 184683593728 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=cbc6eb20-de95-457d-9000-c78b0ae9ee51 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: This is output from the MITgcm ocean model, code checkpoint c68i. The simulations were run on the ARCHER2 super-computing cluster. The model used bathymetry from BedMachine v3, with amendments based on observations from Dutrieux et al. (2014). Any masked values represent seabed or ice. The full model setup can be found here: Lowery, K., Holland, P., & Dutrieux, P. (2025). Model setup for simulations of melting beneath Pine Island Glacier Ice Shelf. Zenodo. https://doi.org/10.5281/zenodo.17206842 Each runs from the three different configurations (BOTH, OCEAN and GEOM) consists of five files: - potentialTemperature.nc: contains the potential temperature output of the model. Variables are: *theta: sea water potential temperature in Celsius *time: time in seconds *x: projection x coordinate in the local model coordinate system in meters *y: projection y coordinate in the local model coordinate system in meters *z: depth in meters - salinity.nc: contains the sea water salinity output of the model. Variables are: *salt: sea water salinity in psu *time: time in seconds *x: projection x coordinate in the local model coordinate system in meters *y: projection y coordinate in the local model coordinate system in meters *z: depth in meters - twoDvariables.nc: contains the 2D variables that are at the interface between the ice and the ocean. The variables are: *freshwaterFlux: ice shelf freshwater flux in kg m2 s-1 *thermalDriving: subice temperature above freezing in degrees Celsius *time: time in seconds *uVelBoundaryLayer: subice ocean velocity in the x direction in m/s *vVelBoundaryLayer: subice ocean velocity in the y direction in m/s *x: projection x coordinate in the local model coordinate system in meters *y: projection y coordinate in the local model coordinate system in meters - uVelocity.nc: contains the x component of the ocean velocity. Variables are: *uVel: ocean velocity in x direction in m/s *time: time in seconds *x: projection x coordinate in the local model coordinate system in meters *y: projection y coordinate in the local model coordinate system in meters *z: depth in meters - vVelocity.nc: contains the y component of the ocean velocity. Variables are: *vVel: ocean velocity in y direction in m/s *time: time in seconds *x: projection x coordinate in the local model coordinate system in meters *y: projection y coordinate in the local model coordinate system in meters *z: depth in meters For conversion, the grid.csv needs to be used for conversion in latitude/longitude Data collection: MITgcm ocean model, code checkpoint c68i. Full code available on Zenodo: https://doi.org/10.5281/zenodo.17206842 Data quality: The results of the model were compared with satellite-basal melt rate. Full description of the comparison can be found in Lowery et al (2026) asNeeded completed