4de39bc0-fc2b-4232-ac39-3cc1fd723f64 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 2023-12-20 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 Forward simulations of the Amundsen Sea Sector of West Antarctica at different resolutions produced from the ice sheet model WAVI 2023-12-20 creation 2023-12-20 revision 2023-12-20 publication 2023-12-20 released 1.0 https://doi.org/10.5285/4de39bc0-fc2b-4232-ac39-3cc1fd723f64 doi GB/NERC/BAS/PDC/01810 https://data.bas.ac.uk/ NE/S006656/1 award Please cite this item as: Williams, C. R., Arthern, R., & Byrne, J. (2024). Forward simulations of the Amundsen Sea Sector of West Antarctica at different resolutions produced from the ice sheet model WAVI (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/4de39bc0-fc2b-4232-ac39-3cc1fd723f64 This dataset contains simulations produced by the ice sheet model WAVI (Wavelet-based Adaptive-grid Vertically-integrated Ice-model), presented as netCDF files. The model domain is the Amundsen Sea Sector of the West Antarctic Ice sheet, including Pine Island Glacier, Thwaites Glacier and the ice streams that flow into the Crossen and Dotson Ice Shelves. The simulations start from initialised states representing approximately the year 2015 and are run for 150 years into the future. The WAVI model is a publicly available open source model written in Julia (Bradley et al., 2024). The initialised states are computed in the Matlab version of WAVI, following methods in Arthern et al. (2015) and Arthern and Williams (2017). These simulations were produced by the authors to study the effects of spatial model resolution and basal melt rates on projections of sea level contribution from this region. Funding was provided by NERC Feasibility Study Grant (Ref: 2021DTUC3Hosking) and ITGC THHWAITES-MELT (NE/S006656/1). No credit. completed Williams, C Rosie British Antarctic Survey Researcher author Arthern, Robert British Antarctic Survey Researcher author Byrne, James 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 > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Ice Sheets 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 Motion/Ice Sheet Motion EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Ice Sheets EARTH SCIENCE > Oceans > Coastal Processes > Sea Level Rise 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 Amundsen Sea ITGC WAVI ice flow simulations theme Amundsen Sea sector of West Antarctica Antarctica place Elevation Meteorological geographical features Hydrography 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 Data supplied under Open Government Licence v3.0 otherRestrictions No restrictions apply. url url largerWorkCitation url url largerWorkCitation doi doi crossReference doi doi crossReference doi doi crossReference doi doi crossReference url url crossReference doi doi dependency textTable eng utf8 elevation environment geoscientificInformation imageryBaseMapsEarthCover inlandWaters oceans -180.0 180.0 -90.0 -60.0 0.0 5.0 urn:ogc:def:crs:EPSG::5714 MSL height Not specific to any location or epoch. Hydrography. 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 296352743424 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=4de39bc0-fc2b-4232-ac39-3cc1fd723f64 WWW:LINK-1.0-http--link Get Data Download data download bytes 296352743424 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=4de39bc0-fc2b-4232-ac39-3cc1fd723f64 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: These simulations explore the effects of spatial model resolution on sea level projections. We take the bedmachine version 3 data set at 500 metre resolution and resample in order to get the required resolution. For each resolution lower than 500 metres, there are thus numerous different bed realisations. We select a number of these at each resolution, as described in Williams et al. (2023). The bed topography is included in each netCDF file, along with a bed_ref scalar coordinate variable to identify it (numerical value used to distinguish between different bed realisations at each resolution). Details of all other datasets can be found in Williams et al. (2023). The initial states for the forward simulations were performed using codes written in the Matlab version of WAVI, using methods described previously in Arthern et al. 2015 and Arthern and Williams 2017. This method uses inverse methods to find the basal drag and ice viscosity parameters that allow the model to agree as well as possible with satellite observations (included in each netCDF file as two-dimensional WeertmanC and damage fields). Once these flow parameters have been found, these initial states can be used to start temporally evolving forward simulations under different parameter forcings (all data needed to run forward from an initial state are included in the dataset). The forward simulation data were produced using the WAVI ice sheet model (Bradley et al., 2024), WAVI.jl, available at https://doi.org/10.5281/zenodo.14393522. The basal melt was prescribed using a depth-dependence melt rate parameterisation including in the WAVI.jl package, where the initial average melt rate at time t=0 years was calibrated for each initial state using a parameter denoted gammaT, which is included as a scalar coordinate variable in each netCDF file. Outputs include two-dimensional fields of ice surface, ice thickness, dh/dt, basal melt rate and average speeds every year for 150 years. Data collection: Initialisation data processing and modelling was done using MATLAB (Version 2018b). Forward simulations were performed using Julia version 1.6.2. The version of the WAVI model used is identified in https://doi.org/10.5281/zenodo.14393522. Data quality: The initialisation algorithm used was evaluated on idealised test cases as described by Arthern and Gudmundsson (2010). Arthern et al (2015) shows maps of discrepancy between model velocity and satellite derived velocity, and histograms of the differences between model elevation changes and elevation changes derived using satellite altimetry. The WAVI.jl package has standard tests to check the performance of the code. These are documented in WAVI.jl/test. A value of -9999 indicates there are no data there. asNeeded completed