Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ...
Antarctic ice shelves are buttressed by numerous pinning points attaching to the otherwise freely-floating ice from below. Some of these kilometric-scale grounded features are unresolved in Antarctic-wide datasets of ice thickness and bathymetry, hampering ice flow models to fully capture dynamics a...
Main Authors: | , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2017
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.883284 https://doi.pangaea.de/10.1594/PANGAEA.883284 |
id |
ftdatacite:10.1594/pangaea.883284 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.883284 2024-09-15T17:47:24+00:00 Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... Berger, Sophie Favier, Lionel Drews, Reinhard Derwael, Jean-Jacques Pattyn, Frank 2017 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.883284 https://doi.pangaea.de/10.1594/PANGAEA.883284 en eng PANGAEA https://dx.doi.org/10.1017/jog.2016.7 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 File content File name File format File size Uniform resource locator/link to file Satellite remote sensing dataset Supplementary Dataset Dataset 2017 ftdatacite https://doi.org/10.1594/pangaea.88328410.1017/jog.2016.7 2024-08-01T11:01:20Z Antarctic ice shelves are buttressed by numerous pinning points attaching to the otherwise freely-floating ice from below. Some of these kilometric-scale grounded features are unresolved in Antarctic-wide datasets of ice thickness and bathymetry, hampering ice flow models to fully capture dynamics at the grounding line and upstream. We investigate the role of an 8.7 km² pinning point at the front of the Roi Baudouin Ice Shelf, East Antarctica.Using ERS interferometry and ALOS-PALSAR speckle tracking, we derive, on a 125 m grid spacing, surface velocities deviating by -5.2 ± 4.5 m/a from 37 on-site global navigation satellite systems-derived velocities. We find no evidence for ice flow changes on decadal time scales and we show that ice on the pinning point virtually stagnates, deviating the ice stream and causing enhanced horizontal shearing upstream. Using the BISICLES ice-flow model, we invert for basal friction and ice rigidity with three input scenarios of ice velocity and geometry. We show that ... : Supplement to: Berger, Sophie; Favier, Lionel; Drews, Reinhard; Derwael, Jean-Jacques; Pattyn, Frank (2016): The control of an uncharted pinning point on the flow of an Antarctic ice shelf. Journal of Glaciology, 62(231), 37-45 ... Dataset Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves DataCite |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
File content File name File format File size Uniform resource locator/link to file Satellite remote sensing |
spellingShingle |
File content File name File format File size Uniform resource locator/link to file Satellite remote sensing Berger, Sophie Favier, Lionel Drews, Reinhard Derwael, Jean-Jacques Pattyn, Frank Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
topic_facet |
File content File name File format File size Uniform resource locator/link to file Satellite remote sensing |
description |
Antarctic ice shelves are buttressed by numerous pinning points attaching to the otherwise freely-floating ice from below. Some of these kilometric-scale grounded features are unresolved in Antarctic-wide datasets of ice thickness and bathymetry, hampering ice flow models to fully capture dynamics at the grounding line and upstream. We investigate the role of an 8.7 km² pinning point at the front of the Roi Baudouin Ice Shelf, East Antarctica.Using ERS interferometry and ALOS-PALSAR speckle tracking, we derive, on a 125 m grid spacing, surface velocities deviating by -5.2 ± 4.5 m/a from 37 on-site global navigation satellite systems-derived velocities. We find no evidence for ice flow changes on decadal time scales and we show that ice on the pinning point virtually stagnates, deviating the ice stream and causing enhanced horizontal shearing upstream. Using the BISICLES ice-flow model, we invert for basal friction and ice rigidity with three input scenarios of ice velocity and geometry. We show that ... : Supplement to: Berger, Sophie; Favier, Lionel; Drews, Reinhard; Derwael, Jean-Jacques; Pattyn, Frank (2016): The control of an uncharted pinning point on the flow of an Antarctic ice shelf. Journal of Glaciology, 62(231), 37-45 ... |
format |
Dataset |
author |
Berger, Sophie Favier, Lionel Drews, Reinhard Derwael, Jean-Jacques Pattyn, Frank |
author_facet |
Berger, Sophie Favier, Lionel Drews, Reinhard Derwael, Jean-Jacques Pattyn, Frank |
author_sort |
Berger, Sophie |
title |
Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
title_short |
Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
title_full |
Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
title_fullStr |
Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
title_full_unstemmed |
Surface velocity of the Roi Baudouin Ice Shelf, East Antarctica, from SAR interferometry, link to GeoTIFFs ... |
title_sort |
surface velocity of the roi baudouin ice shelf, east antarctica, from sar interferometry, link to geotiffs ... |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://dx.doi.org/10.1594/pangaea.883284 https://doi.pangaea.de/10.1594/PANGAEA.883284 |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves |
op_relation |
https://dx.doi.org/10.1017/jog.2016.7 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.88328410.1017/jog.2016.7 |
_version_ |
1810496663736811520 |