Date (Creation)

2018-04-03

Date (Revision)

2018-04-03

Date (Publication)

2018-04-03

Date (released)

2018-04-03

Edition

None

Unique resource identifier

https://doi.org/10.5285/59e5a6f5-e67d-4a05-99af-30f656569401

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01075

Codespace

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

Other citation details

Please cite this item as: Ferraccioli, F., Corr, H., Jordan, T., Robinson, C., Armadillo, E., & Armadillo, G. (2018). Airborne radar bed elevation picks across the Wilkes Subglacial Basin, 2005-2006 (Version None) [Data set]. Polar Data Centre, Natural Environment Research Council, UK. https://doi.org/10.5285/59e5a6f5-e67d-4a05-99af-30f656569401

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Ferraccioli, Fausto		Author
British Antarctic Survey	Corr, Hugh		Author
British Antarctic Survey	Jordan, Tom		Author
British Antarctic Survey	Robinson, Carl		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

• EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
• EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
• EARTH SCIENCE > Spectral/Engineering > Radar

Theme

• Antarctica

• Dome C

• Geophysics

• George V Land

• Ice thickness

• Northern Victoria Land

• Radar

Place

• Wilkes Subglacial Basin, East Antarctica Antarctica

GEMET - INSPIRE themes, version 1.0

• Elevation
• Hydrography

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

. 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:

DATA REFERENCE

Ferraccioli F., Corr H, Jordan T.A., Robinson, C., Armadillo E., Bozzo E. & Caneva G. "Airborne radar bed elevation picks across the Wilkes Subglacial Basin, 2005-2006" (2018) Polar Data Centre, Natural Environment Research Council, UK https://doi.org/10.5285/59e5a6f5-e67d-4a05-99af-30f656569401

LITERATURE REFERENCE

In prep.

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.

Use constraints

Other restrictions

Other constraints

No restrictions apply.

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

dependency

Unique resource identifier

doi

Codespace

doi

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Environment
• Geoscientific information

Begin date

2005-11-09

End date

2006-01-27

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

Hierarchy level

Dataset

Statement

Methodology:

Radar data were collected using the PASIN radar echo sounding system (table 1 (Corr et al., 2007)). Data provided here includes picks and derived elevations of the ice sheet surface and bed. Bed reflections were picked from the radargram after unfocused synthetic aperture (SAR) processing. The bed reflector was picked in a semi-automated manner within the seismic processing package ProMax. An automatic first break picker was applied initially, with subsequent manual editing/removal of picks which appear unreasonable. The final sample spacing of the picked data is ~20 m. The surface elevation is derived from radar altimeter for ground clearance < 750 m, and the PASIN system for higher altitudes. The absolute position and altitude of the aircraft is derived from differentially processed GPS data. The final bedrock channel was created from the picked bed elevation, and surface elevation where flights crossed rock outcrops, as defined in the Antarctic Digital Database ( http://www.add.scar.org/) Version 6, downloaded February 2014. A bedrock elevation channel including BEDMAP2 data (Fretwell et al., 2013), where there is no other information about ice sheet bed elevation, is also included.

Data collection:

Data was collected using the BAS aerogeophysicaly equipped twin otter VP-FBL. With radar data collected using the PASIN radar echo sounding system. GPS data were recorded with Leica receivers on the aircraft and as a base station.

Data quality:

The standard deviation of the bed elevation for all crossover errors for the radar data is 33.3 m. However, this value is skewed by a few high error points in regions of more extreme topography. Over areas with smoother topography the standard deviation of the crossovers is ~10 m.

Resolution: The line spacing for the main survey area is 8.8km, with tie lines 44 km apart. Additional regional lines explore specific targets. The along track sample spacing is 20 m.

Metadata

File identifier

59e5a6f5-e67d-4a05-99af-30f656569401 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2018-04-03

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