Ground-penetrating radar surveys at three nunataks in the Hudson Mountains in the Amundsen Sea sector of West Antarctica, December 2019

This dataset contains data from three ground-penetrating radar surveys undertaken to image ice thickness and englacial stratigraphy during the 2019-20 Antarctic field season, as part of the International Thwaites Glacier Collaboration (funded by NERC and NSF). The ground-penetrating radar data are presented as SEG-Y, along with the GPS tracks of the surveys, presented as GPS Exchange Format (GPX). The subglacial extensions of ridges of three nunataks close to Pine Island and Larter Glaciers in the Hudson Mountains region were surveyed, with the aim of determining their suitability as subglacial bedrock drill sites. Those nunataks are Winkie Nunatak (74 degrees 51' 41.0" S/99 degrees 46' 49.4" W), Evans Knoll (74 degrees 51' 00.0" S/100 degrees 25' 00.0" W), and Webber Nunatak (74 degrees 47' 00.0" S/99 degrees 50' 00.0" W).

This work was funded by NERC grants NE/S00663X/1 and NE/S006710/1.

Date (Creation): 2024-05-02

Date (Revision): 2024-05-02

Date (Publication): 2024-05-02

Date (released): 2024-05-02

Edition: 1.0

Unique resource identifier: https://doi.org/10.5285/9555694e-c9f5-4bf8-a556-2ad9d29e55c6

Codespace: doi

Unique resource identifier: GB/NERC/BAS/PDC/01842

Codespace: https://data.bas.ac.uk/

Unique resource identifier: NE/S00663X/1

Codespace: award

Unique resource identifier: NE/S006710/1

Codespace: award

Other citation details: Please cite this item as: Woodward, J., & Johnson, J. (2024). Ground-penetrating radar surveys at three nunataks in the Hudson Mountains in the Amundsen Sea sector of West Antarctica, December 2019 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/9555694e-c9f5-4bf8-a556-2ad9d29e55c6

Credit: No credit.

Status: Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Northumbria University	Woodward, John		Author
British Antarctic Survey	Johnson, Joanne		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency: As needed

Maintenance note: Completed

Global Change Master Directory (GCMD) Science Keywords

Theme

Hudson Mountains
ITGC
Pine Island Glacier
West Antarctica
geophysics
ground-penetrating radar

Place

Hudson Mountains Antarctica
Winkie Nunatak Antarctica
Webber Nunatak Antarctica
Evans Knoll Antarctica
Pine Island Glacier Antarctica

GEMET - INSPIRE themes, version 1.0

Elevation

Access constraints: Other restrictions

Other constraints: no limitations to public access

Access constraints: Other restrictions

Other constraints: no limitations

Use constraints: License

Other constraints: Open Government Licence v3.0

Use constraints: Other restrictions

Other constraints: This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/

Use constraints: Other restrictions

Other constraints: This data is governed by the NERC data policy and supplied under Open Government Licence v.3

Use constraints: Other restrictions

Other constraints: No restrictions apply.

Unique resource identifier: url

Codespace: url

Association Type: Cross reference

Unique resource identifier: doi

Codespace: doi

Association Type: Cross reference

Unique resource identifier: url

Codespace: url

Association Type: Larger work citation

Unique resource identifier: url

Codespace: url

Association Type: Larger work citation

Unique resource identifier: url

Codespace: url

Association Type: Larger work citation

Spatial representation type: Text, table

Language: English

Character set: UTF8

Topic category

Inland waters

Begin date: 2019-12-02

End date: 2019-12-10

Vertical extent

Minimum value: 97.0

Maximum value: 435.0

Vertical CS

No information provided.

Vertical datum

No information provided.

Supplemental Information: 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.

Title: European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication): 2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier: urn:ogc:def:crs:EPSG::3031

Version: 6.18.3

Distributor

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Distributor

Distributor format

Name	Version
application/xml
application/octet-stream

Units of distribution: bytes

Transfer size: 56727962

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9555694e-c9f5-4bf8-a556-2ad9d29e55c6	Get Data

Units of distribution: bytes

Transfer size: 56727962

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9555694e-c9f5-4bf8-a556-2ad9d29e55c6	Get Data

Hierarchy level: Dataset

Statement: Methodology:

A snowmobile was used to tow a PulseEKKO 1000 ice penetrating radar (GPR) system with 200 MHz antennae mounted on a wooden Nansen sledge. The snowmobile was travelling at speeds of 3-7km/hr with the system set to continuous collection mode with an in-field stack of 4. A hand-held Garmin GPS was used to locate the position of radar survey lines. All radar data are presented in their raw, unprocessed form.

At Winkie Nunatak, a broad grid consisting of seven 400 m-long cross profiles was collected perpendicular to the ridge line. These profiles were spaced at 100 m intervals away from the visible ridge line. A detailed grid of five 300 m-long lines was then collected at 25 m intervals. At Evans Knoll six radar lines were collected perpendicular to the ridge at 7-15 m line spacing, and one line was run parallel to the ridge crest through the centre of the grid. At Webber Nunatak, eight radar lines were collected perpendicular to the ridge expression at 50 m spacing, and one line was run away from the ridge tip through the centre of the grid. The lines increased in length from 150 m to 500 m with increasing distance from bedrock, due to the orientation of the steep ice slope running northwest.

Data collection:

1. Sensors & Software PulseEKKO GPR control unit with a 200 MHz antenna.

2. Garmin GPSMap78 hand-held GPS.

Data quality:

GPS was not linked to the radar during acquisition. Hand-held Garmin GPS was used to locate the position of radar survey lines during acquisition.

Metadata

File identifier: 9555694e-c9f5-4bf8-a556-2ad9d29e55c6 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Hierarchy level name: dataset

Date stamp: 2024-05-02

Metadata standard name: ISO 19115 Geographic Information - Metadata

Metadata standard version: ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact

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