Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ...
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Model (DEM) from Ellsworth Subglacial Highlands (ESH) was created from previously gridded bed elevation data and new unpublished radar data.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 topogra...
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Format: | Dataset |
Language: | English |
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UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation
2020
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Subjects: | |
Online Access: | https://dx.doi.org/10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac7 https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01401 |
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ftdatacite:10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac7 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
"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" Ellsworth Mountains Pine Island Glacier Rutford Ice Stream Thwaites Glacier subglacial hydrology |
spellingShingle |
"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" Ellsworth Mountains Pine Island Glacier Rutford Ice Stream Thwaites Glacier subglacial hydrology Napoleoni, Felipe Jamieson, Stewart Ross, Neil Bentley, Michael Rivera, Andrés Smith, Andrew Siegert, Martin Paxman, Guy Gacitúa, Guisella Uribe, José Zamora, Rodrigo Brisbourne, Alex Vaughan, David Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
topic_facet |
"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" Ellsworth Mountains Pine Island Glacier Rutford Ice Stream Thwaites Glacier subglacial hydrology |
description |
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 ... : We used four existing gridded bed elevation data to create a new Digital Elevation Model (DEM) of the Ellsworth Subglacial Highlands (ESH). This data include: BedMap2 (Fretwell et al., 2013), ice thickness measurements from DELORES (2007-2009) and CECs (2005/2006) (Siegert et al., 2012), new along-track ice thickness measurements from the 2014 CECs RES campaign (Rivera et al., 2015) and unpublished radar measurements from the CECs 2017 RES field campaign in ESH region using a Very High Frequency (VHF) radar and a Medium Frequency (MF) radar (Zamora et al., 2019; Uribe et al., 2019). We used a 2 km grid mesh with a continuous curvature tension spline algorithm (Paxman et al., 2017) to grid the data. We masked the grid to remove interpolated values more than 5 km from the nearest measured data point and replaced them with BedMap2 bed elevation values. We down-sampled the original cell size of BedMap2 (1 km) to match the resolution of the new DEM (2 km) using the nearest neighbour algorithm. Values of bed ... |
format |
Dataset |
author |
Napoleoni, Felipe Jamieson, Stewart Ross, Neil Bentley, Michael Rivera, Andrés Smith, Andrew Siegert, Martin Paxman, Guy Gacitúa, Guisella Uribe, José Zamora, Rodrigo Brisbourne, Alex Vaughan, David |
author_facet |
Napoleoni, Felipe Jamieson, Stewart Ross, Neil Bentley, Michael Rivera, Andrés Smith, Andrew Siegert, Martin Paxman, Guy Gacitúa, Guisella Uribe, José Zamora, Rodrigo Brisbourne, Alex Vaughan, David |
author_sort |
Napoleoni, Felipe |
title |
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
title_short |
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
title_full |
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
title_fullStr |
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
title_full_unstemmed |
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... |
title_sort |
subglacial lakes and hydrology across the ellsworth subglacial highlands, west antarctica, 1977-2017 ... |
publisher |
UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation |
publishDate |
2020 |
url |
https://dx.doi.org/10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac7 https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01401 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) ENVELOPE(-106.750,-106.750,-75.500,-75.500) ENVELOPE(-85.000,-85.000,-78.750,-78.750) ENVELOPE(-85.300,-85.300,-78.600,-78.600) ENVELOPE(-80.000,-80.000,-79.167,-79.167) ENVELOPE(-61.017,-61.017,-64.267,-64.267) ENVELOPE(-62.850,-62.850,-64.550,-64.550) ENVELOPE(-94.000,-94.000,-80.500,-80.500) |
geographic |
Antarctic West Antarctica Pine Island Glacier Thwaites Glacier Ellsworth Mountains Rutford Rutford Ice Stream Rivera Uribe Ellsworth Subglacial Highlands |
geographic_facet |
Antarctic West Antarctica Pine Island Glacier Thwaites Glacier Ellsworth Mountains Rutford Rutford Ice Stream Rivera Uribe Ellsworth Subglacial Highlands |
genre |
Antarc* Antarctic Antarctica Ice Sheet Pine Island Pine Island Glacier Rutford Ice Stream Thwaites Glacier West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Pine Island Pine Island Glacier Rutford Ice Stream Thwaites Glacier West Antarctica |
op_relation |
https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2968 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2948 https://dx.doi.org/10.1029/2011rg000361 https://dx.doi.org/10.5194/tc-12-1551-2018 https://dx.doi.org/10.5194/tc-7-375-2013 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2968 https://dx.doi.org/10.5194/tc-2020-68 https://dx.doi.org/10.1002/2015gl063390 https://dx.doi.org/10.5194/esurf-2-1-2014 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2948 https://dx.doi.org/10.1002/2016jb013841 |
op_rights |
Open Government Licence V3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
op_doi |
https://doi.org/10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac710.1029/2011rg00036110.5194/tc-12-1551-201810.5194/tc-7-375-201310.5194/tc-2020-6810.1002/2015gl06339010.5194/esurf-2-1-201410.1002/2016jb013841 |
_version_ |
1789959180051808256 |
spelling |
ftdatacite:10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac7 2024-02-04T09:55:16+01:00 Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica, 1977-2017 ... Napoleoni, Felipe Jamieson, Stewart Ross, Neil Bentley, Michael Rivera, Andrés Smith, Andrew Siegert, Martin Paxman, Guy Gacitúa, Guisella Uribe, José Zamora, Rodrigo Brisbourne, Alex Vaughan, David 2020 application/octet-stream image/tiff https://dx.doi.org/10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac7 https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01401 en eng UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2968 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2948 https://dx.doi.org/10.1029/2011rg000361 https://dx.doi.org/10.5194/tc-12-1551-2018 https://dx.doi.org/10.5194/tc-7-375-2013 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2968 https://dx.doi.org/10.5194/tc-2020-68 https://dx.doi.org/10.1002/2015gl063390 https://dx.doi.org/10.5194/esurf-2-1-2014 https://www.igsoc.org/symposia/2019/stanford/proceedings/procsfiles/procabstracts_75.html#A2948 https://dx.doi.org/10.1002/2016jb013841 Open Government Licence V3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ "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" Ellsworth Mountains Pine Island Glacier Rutford Ice Stream Thwaites Glacier subglacial hydrology Ellsworth Mountains,Pine Island Glacier,Rutford Ice Stream,Thwaites Glacier,subglacial hydrology Dataset dataset 2020 ftdatacite https://doi.org/10.5285/72f46ad0-063d-49a7-ba89-45edc5d9aac710.1029/2011rg00036110.5194/tc-12-1551-201810.5194/tc-7-375-201310.5194/tc-2020-6810.1002/2015gl06339010.5194/esurf-2-1-201410.1002/2016jb013841 2024-01-05T01:53:50Z 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 ... : We used four existing gridded bed elevation data to create a new Digital Elevation Model (DEM) of the Ellsworth Subglacial Highlands (ESH). This data include: BedMap2 (Fretwell et al., 2013), ice thickness measurements from DELORES (2007-2009) and CECs (2005/2006) (Siegert et al., 2012), new along-track ice thickness measurements from the 2014 CECs RES campaign (Rivera et al., 2015) and unpublished radar measurements from the CECs 2017 RES field campaign in ESH region using a Very High Frequency (VHF) radar and a Medium Frequency (MF) radar (Zamora et al., 2019; Uribe et al., 2019). We used a 2 km grid mesh with a continuous curvature tension spline algorithm (Paxman et al., 2017) to grid the data. We masked the grid to remove interpolated values more than 5 km from the nearest measured data point and replaced them with BedMap2 bed elevation values. We down-sampled the original cell size of BedMap2 (1 km) to match the resolution of the new DEM (2 km) using the nearest neighbour algorithm. Values of bed ... Dataset Antarc* Antarctic Antarctica Ice Sheet Pine Island Pine Island Glacier Rutford Ice Stream Thwaites Glacier West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic West Antarctica Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) Rutford ENVELOPE(-85.300,-85.300,-78.600,-78.600) Rutford Ice Stream ENVELOPE(-80.000,-80.000,-79.167,-79.167) Rivera ENVELOPE(-61.017,-61.017,-64.267,-64.267) Uribe ENVELOPE(-62.850,-62.850,-64.550,-64.550) Ellsworth Subglacial Highlands ENVELOPE(-94.000,-94.000,-80.500,-80.500) |