Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica
The region of Recovery Glacier, Slessor Glacier and Bailey Ice Stream, East Antarctica, has remained poorly explored, despite representing the largest potential contributor to future global sea level rise on a centennial to millennial timescale. Here, we use new airborne radar data to improve knowle...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2018
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ftnerc:oai:nora.nerc.ac.uk:519534 2023-05-15T13:49:34+02:00 Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica Diez, Anja Matsuoka, Kenichi Ferraccioli, Fausto Jordan, Tom A. Corr, Hugh F. Kohler, Jack Olesen, Arne V. Forsberg, René 2018-03-28 text http://nora.nerc.ac.uk/id/eprint/519534/ https://nora.nerc.ac.uk/id/eprint/519534/1/Diez_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL076601 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/519534/1/Diez_et_al-2018-Geophysical_Research_Letters.pdf Diez, Anja; Matsuoka, Kenichi; Ferraccioli, Fausto orcid:0000-0002-9347-4736 Jordan, Tom A. orcid:0000-0003-2780-1986 Corr, Hugh F.; Kohler, Jack; Olesen, Arne V.; Forsberg, René. 2018 Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica. Geophysical Research Letters, 45 (6). 2706-2715. https://doi.org/10.1002/2017GL076601 <https://doi.org/10.1002/2017GL076601> cc_by_nc_nd_4 CC-BY-NC-ND Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1002/2017GL076601 2023-02-04T19:46:17Z The region of Recovery Glacier, Slessor Glacier and Bailey Ice Stream, East Antarctica, has remained poorly explored, despite representing the largest potential contributor to future global sea level rise on a centennial to millennial timescale. Here, we use new airborne radar data to improve knowledge about the bed topography and investigate controls of fast ice flow. Recovery Glacier is underlain by an 800 km-long trough. Its fast flow is controlled by subglacial water in its upstream and topography in its downstream region. Fast flow of Slessor Glacier is controlled by the presence of subglacial water on a rough crystalline bed. Past ice flow of adjacent Recovery and Slessor Glaciers was likely connected via the newly-discovered Recovery-Slessor Gate. Changes in direction and speed of past fast flow likely occurred for upstream parts of Recovery Glacier, and between Slessor Glacier and Bailey Ice Stream. Similar changes could also reoccur here in future. Article in Journal/Newspaper Antarc* Antarctica Bailey Ice Stream East Antarctica Recovery Glacier Slessor Glacier Natural Environment Research Council: NERC Open Research Archive Bailey Ice Stream ENVELOPE(-30.000,-30.000,-79.000,-79.000) East Antarctica Recovery Glacier ENVELOPE(-25.500,-25.500,-81.166,-81.166) Slessor ENVELOPE(-64.967,-64.967,-66.517,-66.517) Slessor Glacier ENVELOPE(-26.000,-26.000,-79.833,-79.833) Geophysical Research Letters 45 6 2706 2715 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The region of Recovery Glacier, Slessor Glacier and Bailey Ice Stream, East Antarctica, has remained poorly explored, despite representing the largest potential contributor to future global sea level rise on a centennial to millennial timescale. Here, we use new airborne radar data to improve knowledge about the bed topography and investigate controls of fast ice flow. Recovery Glacier is underlain by an 800 km-long trough. Its fast flow is controlled by subglacial water in its upstream and topography in its downstream region. Fast flow of Slessor Glacier is controlled by the presence of subglacial water on a rough crystalline bed. Past ice flow of adjacent Recovery and Slessor Glaciers was likely connected via the newly-discovered Recovery-Slessor Gate. Changes in direction and speed of past fast flow likely occurred for upstream parts of Recovery Glacier, and between Slessor Glacier and Bailey Ice Stream. Similar changes could also reoccur here in future. |
format |
Article in Journal/Newspaper |
author |
Diez, Anja Matsuoka, Kenichi Ferraccioli, Fausto Jordan, Tom A. Corr, Hugh F. Kohler, Jack Olesen, Arne V. Forsberg, René |
spellingShingle |
Diez, Anja Matsuoka, Kenichi Ferraccioli, Fausto Jordan, Tom A. Corr, Hugh F. Kohler, Jack Olesen, Arne V. Forsberg, René Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
author_facet |
Diez, Anja Matsuoka, Kenichi Ferraccioli, Fausto Jordan, Tom A. Corr, Hugh F. Kohler, Jack Olesen, Arne V. Forsberg, René |
author_sort |
Diez, Anja |
title |
Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
title_short |
Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
title_full |
Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
title_fullStr |
Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
title_full_unstemmed |
Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica |
title_sort |
basal settings control fast ice flow in the recovery/slessor/bailey region, east antarctica |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519534/ https://nora.nerc.ac.uk/id/eprint/519534/1/Diez_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL076601 |
long_lat |
ENVELOPE(-30.000,-30.000,-79.000,-79.000) ENVELOPE(-25.500,-25.500,-81.166,-81.166) ENVELOPE(-64.967,-64.967,-66.517,-66.517) ENVELOPE(-26.000,-26.000,-79.833,-79.833) |
geographic |
Bailey Ice Stream East Antarctica Recovery Glacier Slessor Slessor Glacier |
geographic_facet |
Bailey Ice Stream East Antarctica Recovery Glacier Slessor Slessor Glacier |
genre |
Antarc* Antarctica Bailey Ice Stream East Antarctica Recovery Glacier Slessor Glacier |
genre_facet |
Antarc* Antarctica Bailey Ice Stream East Antarctica Recovery Glacier Slessor Glacier |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519534/1/Diez_et_al-2018-Geophysical_Research_Letters.pdf Diez, Anja; Matsuoka, Kenichi; Ferraccioli, Fausto orcid:0000-0002-9347-4736 Jordan, Tom A. orcid:0000-0003-2780-1986 Corr, Hugh F.; Kohler, Jack; Olesen, Arne V.; Forsberg, René. 2018 Basal settings control fast ice flow in the Recovery/Slessor/Bailey Region, East Antarctica. Geophysical Research Letters, 45 (6). 2706-2715. https://doi.org/10.1002/2017GL076601 <https://doi.org/10.1002/2017GL076601> |
op_rights |
cc_by_nc_nd_4 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1002/2017GL076601 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
6 |
container_start_page |
2706 |
op_container_end_page |
2715 |
_version_ |
1766251749362892800 |