GB_NERC_BAS_PDC_01401
English
dataset
British Antarctic Survey
+44 (0)1223 221400
pdc@bas.ac.uk
pointOfContact
2020-10-06
NERC profile of ISO19115:2003
1.0
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01401
urn:ogc:def:crs:EPSG::4326
OGP
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01401
2020-10-06
publication
GB/NERC/BAS/PDC/01401
http://www.antarctica.ac.uk/dms/metadata.php?id=
A new subglacial bed Digital Elevation Model (DEM) from Ellsworth Subglacial Highlands (ESH) was created from previously gridded bed elevation data and new unpublished radar data. The new DEM includes the upper reaches of Pine Island Glacier, Rutford and Institute Ice Streams and reveals new topographical features. The main findings on this new DEM are two linear deep throughs with a perpendicular transection valley near Subglacial Lake Ellsworth. Additionally, using the new DEM and ice surface elevation data from CryoSat2 ice surface DEM, a hydropotential model was built and used to create a detailed hydropotential model of ESH to simulate the subglacial hydrological network. This approach allowed us to characterize basal hydrology, subglacial water catchments and connections between them. In this characterization we noticed the mismatch between subglacial hydrological catchment and ice surfaces catchment of Rutford Ice Stream, Pine Island Glacier and Thwaites Glacier.
Funding was provided by NERC Antarctic Funding Initiative (AFI) grants NE/D008751/1, NE/D009200/1, and NE/D008638/1, and NERC grant NE/G013071/1.
British Antarctic Survey
+44 (0)1223 221400
High Cross, Madingley Road
Cambridge
CB3 0ET
UK
pdc@bas.ac.uk
custodian
Napoleoni, F. et al.
Polar Data Centre,Natural Environment Research Council,UK Research & Innovation
+44 (0)1223 221400
High Cross, Madingley
Cambridge
CB3 0ET
UK
pdc@bas.ac.uk
originator
unknown
NDGO0001
NERC_DDC
NERC OAI Harvesting
2020-10-06
revision
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers
GCMD Parameter Valids
2020-10-06
revision
Ellsworth Mountains
Pine Island Glacier
Rutford Ice Stream
Thwaites Glacier
subglacial hydrology
BAS Free-text keywords
2020-10-06
revision
This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
otherRestrictions
This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
English
climatologyMeteorologyAtmosphere
elevation
geoscientificInformation
imageryBaseMapsEarthCover
-90.7
-82.8
-80
-78.5
1977-01-01
2017-12-19
Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
pdc@bas.ac.uk
distributor
https://doi.org/10.1029/2011RG000361
information
dataset
Conformity_001
INSPIRE
INSPIRE Data Specification on unknown theme Guidelines
See the referenced specification
false
In January 2014 ~1100 km of RES data collected by CECs over an area of ~7000 km2 were acquired with a line spacing of ~8 km. The CECs survey during December of the same year was collected over a nested grid around SLC and along the host subglacial trough further north towards RIS, surveying a total of ~1050 km. During December 2017 the CECs radar survey acquired a total of ~700 km of RES data along the same trough. We assume the same uncertainties as Bedmap2 for the region beyond Ellsworth Subglacial Highland.