c2dfc6b7-dd61-41f9-8624-a45f2cf978df 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 2021-06-09 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 Animation of Thwaites Glacier ice base and surface elevation profiles from June 2011 to November 2020 2021-06-09 creation 2021-06-09 revision 2021-06-09 publication 2021-06-09 released 1.0 https://doi.org/10.5285/c2dfc6b7-dd61-41f9-8624-a45f2cf978df doi GB/NERC/BAS/PDC/01510 https://data.bas.ac.uk/ NE/P011365/1 award NE/S006605/1 award Please cite this item as: Bevan, S., Luckman, A., & Benn, D. (2021). Animation of Thwaites Glacier ice base and surface elevation profiles from June 2011 to November 2020 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/c2dfc6b7-dd61-41f9-8624-a45f2cf978df Thwaites Glacier, West Antarctica. An animated time series plot of 64 profiles of ice base and surface elevation along a flowline based on the mean flow direction. The flowline passes through a region of large elevation change that took place between 2014 and 2017. The work was funded by NERC projects NE/P011365/1 and NE/S006605/1 No credit. completed Bevan, Suzanne Swansea University Researcher author Luckman, Adrian Swansea University Researcher author Benn, Douglas University of St Andrews 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 Thickness/Ice Sheet Thickness EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers 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 ITGC Thwaites Glacier ice base and surface elevation profiles theme Along the western flank of the fast-flowing core of Thwaites Glacier. Antarctica place Elevation 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. doi doi crossReference doi doi crossReference doi doi crossReference doi doi crossReference url url crossReference textTable eng utf8 elevation geoscientificInformation imageryBaseMapsEarthCover -107.09 -107.09 -75.48 -75.48 2011-06-22 2020-11-02 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 image/gif bytes 2048 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=c2dfc6b7-dd61-41f9-8624-a45f2cf978df WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: The profiles were extracted from digital elevation models (DEMs) based on an interferometric analysis of TanDEM-X satellite system synthetic aperture radar (SAR) data. Phase-scaling of the interferograms utilised the supplied orbit data. The DEMs were geocoded first using the RAMP DEM (Liu et al., 2015) and then, iteratively, using the DEMs themselves. The DEMs were calibrated in the vertical using an ICESat-2 point at (107.49°W, 75.47°S) acquired on 2018-11-05. Heights are plotted relative to the EGM2008 Geoid and corrected for mean dynamic topography and tides. The ice base is computed assuming that the ice is in hydrostatic equilibrium. The bedrock is from Jordan et al. (2020). Processing is described fully in the reference paper. Data collection: Interferometric analysis was carried out using Gamma Remote Sensing software 20190603. Data quality: Via comparison with ICESat-2 data and in consideration of orbit uncertainty, the original DEMs have an estimated vertical uncertainty of ±2 m. asNeeded completed