e9ed7128-eeed-4478-b308-8d1ea347dfa4 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 2024-12-13 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 Seismic reflection and refraction shot gathers from Korff Ice Rise, West Antarctica, 2015 2024-12-13 creation 2024-12-13 revision 2024-12-13 publication 2024-12-13 released 1.0 https://doi.org/10.5285/e9ed7128-eeed-4478-b308-8d1ea347dfa4 doi GB/NERC/BAS/PDC/01970 https://data.bas.ac.uk/ Please cite this item as: Agnew, R., Brisbourne, A., & Smith, A. (2025). Seismic reflection and refraction shot gathers from Korff Ice Rise, West Antarctica, 2015 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/e9ed7128-eeed-4478-b308-8d1ea347dfa4 In 2015 a 3.7 km long seismic reflection profile was collected along the ice divide at Korff Ice Rise, West Antarctica, aiming to study basal conditions and englacial properties. Additionally, short refraction shot gathers were collected to study firn properties and constrain P-wave velocities in the firn. This dataset consists of the reflection and refraction data as a series of SEG-Y files. This study is part of the British Antarctic Survey programme Polar Science for Planet Earth. All data were collected with the support of the British Antarctic Survey. No credit. completed Agnew, Ronan British Antarctic Survey Researcher author Brisbourne, Alex 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 > Glaciers/Ice Sheets > Glacier Facies 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 reflection refraction seismic subglacial theme Korff Ice Rise Antarctica place 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 Data supplied under Open Government Licence v3.0 otherRestrictions None. doi doi crossReference doi doi crossReference doi doi crossReference url url crossReference doi doi crossReference textTable eng utf8 geoscientificInformation inlandWaters -68.508 -68.38 -78.734 -78.707 2015-01-01 2015-01-31 358.2 373.8 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/octet-stream bytes 102760448 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=e9ed7128-eeed-4478-b308-8d1ea347dfa4 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Reflection profile: Georods were deployed at intervals of 10 m. Receiver spreads were alternately at 30 m offset and split, with the shot point within the spread. Geometry is assigned in SEG-Y headers. No processing has been included. The source was 150 g Pentolite at 20 m depth. Refraction gathers: Refrac 01 - 48 receivers, 10 m channel interval, 510 m offset. Source: 150 g Pentolite at surface. Refrac 02 - 48 receivers, 10 m channel interval, 30 m offset. Source: 150 g Pentolite at surface. Refrac 03 - 48 receivers,'expanding spread' geometry; i.e. channel interval 2.5 m to 390 m, progressively increasing receiver intervals: 2.5 m between 2.5 m and 20 m, 5 m between 20 and 50 m, and 10 m between 50 m and 390 m. The source was a seismic detonator at surface. Data collection: Seismic: Recorded on 2 x 24 channel Geometrics Geode with 48 x 40 Hz Georods. Source: Reflection: 150 g high explosive shots at 20 m depth. Refraction: REFRAC_01, REFRAC_02: 150 g Pentolite at surface. REFRAC_03: seismic detonator at surface. Resolution: Reflection: The normal incidence Fresnel zone is less than 80 m (minimum 150 Hz dominant frequency). Data quality: Reflection: 8000 Hz sample rate with GPS shot trigger timing; 24 bit recording Refraction: 16000 Hz sample rate with GPS shot trigger timing asNeeded completed