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Radar-derived bed reflectivity of Rutford Ice Stream, West Antarctica, December 2016 to January 2017

The dataset presented here contains a csv-file including the coordinates, received power of the bed reflection and the two-way travel time of the bed reflection. The X and Y coordinates are projected in EPSG:3031 - WGS 84 / Antarctic Polar Stereographic coordinate system.

Data presented here have been frequency filtered and 2D migrated (using a finite difference approach and migration velocity of 0.168 m ns-1), followed by the picking of the bed reflection using ReflexW software (Sandmeier Scientific Software). The received power is calculated within a 280 ns time window centred on, and encompassing, the bed reflection (Gades et al., 2000).

This work was funded within the BEAMISH project by NERC AFI award numbers NE/G014159/1 and NE/G013187/1.

Simple

Alternate title
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01438
Date (Publication)
2020-11-30
Identifier
http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01438
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  Polar Data Centre,Natural Environment Research Council,UK Research & Innovation - Schlegel, Rebecca;Brisbourne, Alex;King, Edward;Murray, Tavi;Smith, Andrew
High Cross, Madingley , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Maintenance and update frequency
unknown Unknown
Keywords
  • NDGO0001
NERC OAI Harvesting
  • NERC_DDC
GCMD Parameter Valids
  • EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
  • EARTH SCIENCE > Spectral/Engineering > Radar > Radar Reflectivity
BAS Free-text keywords
  • BEAMISH
  • West Antarctica
  • fast flowing ice stream
  • radar reflectivity
Use limitation
This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
Access constraints
otherRestrictions Other restrictions
Other constraints
This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
N
S
E
W
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Begin date
2016-12-01
End date
2017-01-31
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
Distributor
  Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
OnLine resource
https://www.bas.ac.uk/project/basal-conditions-on-rutford-ice-stream/
Hierarchy level
dataset Dataset

Domain consistency

Measure identification
INSPIRE / Conformity_001

Conformance result

Date
Explanation
See the referenced specification
Pass
No
Statement

The centre frequency of the DELORES dataset presented here is 3 MHz, the wavelength in ice (wave speed in ice=0.168 m ns-1) is 56 m. Lines were acquired perpendicular to the ice flow, with a 500 m spacing between them. The along track sampling is around 2 m. Data has been 2D migrated (along acquisition direction), the theoretical horizontal resolution of the dataset after 2D migration is 12 m.

The bed reflection was clearly identifiable along the whole dataset. The received power is calculated within a 280 ns time window centred on, and encompassing, the bed reflection (Gades et al., 2000).

File identifier
GB_NERC_BAS_PDC_01438 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2020-11-30
Metadata standard name
NERC profile of ISO19115:2003
Metadata standard version
1.0
Point of contact
  British Antarctic Survey
+44 (0)1223 221400
Dataset URI
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01438
 
 

Overviews

Spatial extent

N
S
E
W
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Keywords


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