Ice motion measurements, south-west Greenland Ice Sheet (version 2)

From May 2009 to May 2013, seven dual-frequency GPS receivers were deployed along a 120 km-long transect in the south-west of the Greenland Ice Sheet. Two additional dual-frequency GPS receivers were deployed perpendicular to longitudinal ice flow at ~14 km inland: one 5 km distant from June 2011 to May 2013, and another 2.5 km distance from May 2012 to May 2013. Each receiver recorded position observations every 10 seconds or 30 seconds (depending on configuration), enabling resolution of horizontal and vertical ice motion. Sites were powered by solar panels and operated 24 hours a day during summer but shut down in the autumn. Absolute ice displacements at each site were obtained for each summer and winter period in the absence of continuous measurements. Position measurements were kinematically corrected relative to an off-ice base station using TRACK (Chen, 1999). Daily velocities were then obtained by differencing across 24-hour periods, whilst continuous velocities were obtained through application of a sliding 6-hour differencing window.



At each GPS site we also measured (1) the near-surface air temperature every 15 minutes year-round, (2) net seasonal ablation using ablation stakes, and (3) at several selected sites melt rates using sonic ranging sensors.



This version 2 of the dataset updates the previously 2-day temporal resolution of the ice motion records to 1-day resolution. In other respects the dataset has not changed.



Funded by NERC, the Carnegie Trust for the Universities of Scotland and The University of Edinburgh.

Relevant grants: NE/F021399/1, NE/H024964/1

Studentships: NE/I52830X/1, NE/J500021/1, NE/H526794/1

Simple

Alternate title

Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01053
Date (Publication)
2022-03-22
Citation identifier
http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01053
Point of contact
Organisation name Individual name Electronic mail address Role

British Antarctic Survey

pdc@bas.ac.uk

Custodian

Polar Data Centre; British Antarctic Survey, Natural Environment Research Council; Cambridge, CB3 0ET, UK.

Tedstone, A., & Neinow, P.

pdc@bas.ac.uk

Originator
Maintenance and update frequency
Unknown
Keywords

  • NDGO0001

NERC OAI Harvesting

  • NERC_DDC

GCMD Parameter Valids

  • EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance

  • EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion

BAS Free-text keywords

  • GPS

  • Greenland

  • ice flow

  • ice motion
Use limitation

This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

Access constraints
Other restrictions
Other constraints

This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

Language
English
Topic category
  • Climatology, meteorology, atmosphere
  • Environment
N
S
E
W
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Begin date
2009-05-07
End date
2013-05-12
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
    Distributor contact
    Organisation name Individual name Electronic mail address Role

    Polar Data Centre - British Antarctic Survey

    pdc@bas.ac.uk

    		Distributor
    OnLine resource
    Protocol Linkage Name

    http

         		https://ramadda.data.bas.ac.uk/repository/entry/show/?entryid=1f69fba3-4c62-47ad-8119-08cfeec05e46

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    Hierarchy level
    Dataset

    Domain consistency

    Measure identification
    INSPIRE / Conformity_001

    Conformance result

    Title

    INSPIRE Data Specification on unknown theme Guidelines
    Date
    Explanation

    See the referenced specification
    Pass
    No
    Statement

    No special comments

    Metadata

    File identifier
    GB_NERC_BAS_PDC_01053 XML
    Metadata language
    English
    Hierarchy level
    Dataset
    Date stamp
    2022-03-22
    Metadata standard name

    NERC profile of ISO19115:2003
    Metadata standard version

    1.0
    Metadata author
    Organisation name Individual name Electronic mail address Role

    British Antarctic Survey

    pdc@bas.ac.uk

    		Point of contact
    Dataset URI

    http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01053

     
     

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