4b2ccda1-91ec-4c57-9ae0-07b9a387f352 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 2019-12-04 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 Processed bed elevation picks from airborne radar depth sounding across Ellsworth Land (2001) 2019-12-04 creation 2019-12-04 revision 2019-12-04 publication 2019-12-04 released 1.0 https://doi.org/10.5285/4b2ccda1-91ec-4c57-9ae0-07b9a387f352 doi GB/NERC/BAS/PDC/01277 https://data.bas.ac.uk/ Please cite this item as: Corr, H., & Smith, A. (2020). Processed bed elevation picks from airborne radar depth sounding across Ellsworth Land (2001) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4b2ccda1-91ec-4c57-9ae0-07b9a387f352 During the 2001-02 field season a regional survey was flown on a 10 km line spacing grid over the drainage basin of the Rutford Ice stream (West Antarctica), as part of the TORUS (Targeting ice stream onset regions and under-ice systems) project. We present here the bed elevation picks from airborne radar depth sounding collected using the "BAS-built" radar depth sounding system mounted on the BAS aerogeophysical equipped Twin Otter aircraft. Data are provided as XYZ ASCII line data No credit. completed Corr, Hugh British Antarctic Survey Researcher author Smith, Andrew 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 > Snow/Ice > Ice Depth/Thickness EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets 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 Antarctic aerogeophysics ice thickness radar surface elevation theme Ellsworth Land Antarctica place Meteorological geographical features Elevation 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 Further by downloading this data the user acknowledges that they agree with the NERC data policy (), and the following conditions: 1. To cite the data in any publication as follows: Corr, H., & Smith, A. (2020). Processed bed elevation picks from airborne radar depth sounding across Ellsworth Land (2001) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4B2CCDA1-91EC-4C57-9AE0-07B9A387F352 2. The user recognizes the limitations of data. Use of the data is at the users' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data. url url crossReference url url crossReference url url crossReference doi doi crossReference textTable eng utf8 geoscientificInformation -93.8 -82.1 -78.2 -76.0 2001-11-21 2001-12-11 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/plain bytes 62914560 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=4b2ccda1-91ec-4c57-9ae0-07b9a387f352 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Radar data were collected using the "BAS-built" radar echo sounding system (Corr and Popple, 1994; Fremand, Bodart et al., 2022). The TORUS survey involved the collection of a total of approximately 9,500 km of line data along 15 flights, with 10 km spacing. The airborne ice sounding radar system used a 4 µs linear frequency modulated pulse in addition to a standard short 0.25 us pulse. Data provided here includes picks of surface and ice sheet bed elevation. Note a single flight may contain data from two or more SEGY files, identified in the SEGYname channel. Surface elevation is derived from radar altimeter for ground clearance < 750 m, and the PASIN system for higher altitudes. Channel description: Basic Channels Name Description Date UTC date (YYYY/MM/DD) Time UTC time (HH:MM:SS.SS) FlightID Sequential flight number and survey ID e.g. W12 Line_no Line Number e.g. LW200.1 Lon Longitude WGS 1984 Lat Latitude WGS 1984 x x projected meters* y y projected meters* Height_WGS1984 Aircraft altitude (meters) in WGS 1984 Radar surfElev Surface elevation (m) bedElev Ice bed elevation, derived by subtracting tice from surfElev (m) tIce Ice thickness, derived from bedPickLoc and surfPickLoc (m). * Projected coordinates (x and y) are in Lambert conic conformal with two standard parallels defined as follows: Latitude of natural origin: -71 Longitude of natural origin: 0 Scale factor at natural origin 0.994 False easting 0 False northing 2082760.109 Data quality: The following parameters have no values: segY_name, traceNum, priNum, surfPickloc, bedPickloc asNeeded completed