Date (Creation)

2019-12-04

Date (Revision)

2019-12-04

Date (Publication)

2019-12-04

Date (released)

2019-12-04

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/4b2ccda1-91ec-4c57-9ae0-07b9a387f352

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01277

Codespace

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

Other citation details

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

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Corr, Hugh		Author
British Antarctic Survey	Smith, Andrew		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 > Snow/Ice > Ice Depth/Thickness
• EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets

Theme

• Antarctic

• aerogeophysics

• ice thickness

• radar

• surface elevation

Place

• Ellsworth Land Antarctica

GEMET - INSPIRE themes, version 1.0

• Meteorological geographical features
• 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

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.

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

doi

Codespace

doi

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Geoscientific information

Begin date

2001-11-21

End date

2001-12-11

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 "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

Metadata

File identifier

4b2ccda1-91ec-4c57-9ae0-07b9a387f352 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2019-12-04

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