873edd47-f5c2-47cb-bf0c-3f45232536ca 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 2025-03-24 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 Transient electromagnetic survey from the southern sector of Larsen C Ice Shelf, Antarctic Peninsula, December 2022 2025-03-24 creation 2025-03-24 revision 2025-03-24 publication 2025-03-24 released 1.0 https://doi.org/10.5285/873edd47-f5c2-47cb-bf0c-3f45232536ca doi GB/NERC/BAS/PDC/02035 https://data.bas.ac.uk/ NE/T008016/1 award Please cite this item as: Kulessa, B., Thompson, S., Miles, K., Luckman, A., & Hubbard, B. (2025). Transient electromagnetic survey from the southern sector of Larsen C Ice Shelf, Antarctic Peninsula, December 2022 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/873edd47-f5c2-47cb-bf0c-3f45232536ca In this transient electromagnetic survey, twenty-one soundings were acquired every 500 m along a 10 km long profile on Larsen C Ice Shelf, Antarctic Peninsula in December 2022. The transient electromagnetic data were acquired with a Geonics PROTEM47 system and a 4 x 100m square transmitter loop. The transient electromagnetic data were acquired to image the marine ice at the base of the Larsen C Ice Shelf in this suture zone, as part of the NERC-funded RiPIce (Rift Propagation for Ice sheet models) research project. This project is funded by a NERC standard grant NE/T008016/1. No credit. completed Kulessa, Bernd Swansea University Researcher author Thompson, Sarah None Researcher author Miles, Katie Lancaster University Researcher author Luckman, Adrian Swansea University Researcher author Hubbard, Bryn Aberystwyth University 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 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 Antarctica Larsen C Ice Shelf marine ice transient electromagnetic theme Larsen C Ice Shelf Antarctica place 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 None. url url crossReference url url crossReference url url crossReference doi doi crossReference doi doi crossReference doi doi crossReference textTable eng utf8 geoscientificInformation -64.43212 -64.3256 -68.04154 -67.95819 2022-11-29 2022-12-11 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/csv bytes 53248 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=873edd47-f5c2-47cb-bf0c-3f45232536ca WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: TEM data were acquired with a Geonics PROTEM47 system consisting of a three-channel digital time-domain receiver unit, a three component multi-turn receiver coil (area 31.4 m2), and a TEM47 battery-powered transmitter. A 4x100 m square transmitter loop was laid out and the receiver coil was placed in the center of the square. Twenty-one TEM soundings were acquired every 500 m along a 10 km long profile. At each location the transmitter module was used to power 2 A of current around the 4x100 m square transmitter loop. A base frequency of 25 Hz was acquired with 30 measurement time gates, 30 second integration time, and seven stacks. Furthermore, at each location the background noise was measured with the transmitter turned off. For all soundings above the background noise level the raw data was converted from the raw field measurements (in Volts) to received voltages in Volts per amp meter squared (V/Am2). The error was calculated as one standard deviation from all seven stacks. Sounding numbers 1,2,4,6,9,12,18, and 20 did not measure any data above the background noise level and therefore no data was processed to received voltages for these soundings. Data collection: The data were acquired using a Geonics PROTEM47 system consisting of a three-channel digital time-domain receiver unit, a three component multi-turn receiver coil (area 31.4 m2), and a TEM47 battery-powered transmitter. Data quality: Each sounding was recorded with an integration time of 30 second. Sounding numbers 1,2,4,6,9,12,18, and 20 did not measure any data above the background noise level and therefore no data was processed to received voltages for these soundings. asNeeded completed