Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ...
Temporal variations in ice sheet flow directly impact the internal structure within ice sheets through englacial deformation. Large-scale changes in the vertical stratigraphy within ice sheets have been previously conducted on centennial to millennial timescales; however, intra-annual changes in the...
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Online Access: | https://dx.doi.org/10.17863/cam.36083 https://www.repository.cam.ac.uk/handle/1810/288820 |
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ftdatacite:10.17863/cam.36083 2024-02-04T10:00:34+01:00 Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... Young, Tun Jan Christoffersen, Poul Doyle, Samuel Nicholls, Keith Stewart, Craig Hubbard, Bryn Hubbard, Alun Lok, Lai Bun Bennan, Paul Luckman, Adrian Bougamont, Marion 2019 https://dx.doi.org/10.17863/cam.36083 https://www.repository.cam.ac.uk/handle/1810/288820 en eng Wiley-Blackwell open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 Glacier Greenland Ice Sheet Radar Strain Article ScholarlyArticle JournalArticle article-journal 2019 ftdatacite https://doi.org/10.17863/cam.36083 2024-01-05T09:40:54Z Temporal variations in ice sheet flow directly impact the internal structure within ice sheets through englacial deformation. Large-scale changes in the vertical stratigraphy within ice sheets have been previously conducted on centennial to millennial timescales; however, intra-annual changes in the morphology of internal layers have yet to be explored. Over a period of two years, we use autonomous phase-sensitive radio-echo sounding (ApRES) to track the daily displacement of internal layers on Store Glacier, West Greenland to millimeter accuracy. At a site located ~30 km from the calving terminus, where the ice is ~600m thick and flows at ~700m/yr, we measure distinct seasonal variations in vertical velocities and vertical strain rates over a two-year period. Prior to the melt season (March–June), we observe increasingly non-linear englacial deformation with negative vertical strain rates (i.e. strain thinning) in the upper half of the ice column of ~0.03 a-1, whereas the ice below thickens under vertical ... Article in Journal/Newspaper glacier Greenland Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Glacier Greenland Ice Sheet Radar Strain |
spellingShingle |
Glacier Greenland Ice Sheet Radar Strain Young, Tun Jan Christoffersen, Poul Doyle, Samuel Nicholls, Keith Stewart, Craig Hubbard, Bryn Hubbard, Alun Lok, Lai Bun Bennan, Paul Luckman, Adrian Bougamont, Marion Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
topic_facet |
Glacier Greenland Ice Sheet Radar Strain |
description |
Temporal variations in ice sheet flow directly impact the internal structure within ice sheets through englacial deformation. Large-scale changes in the vertical stratigraphy within ice sheets have been previously conducted on centennial to millennial timescales; however, intra-annual changes in the morphology of internal layers have yet to be explored. Over a period of two years, we use autonomous phase-sensitive radio-echo sounding (ApRES) to track the daily displacement of internal layers on Store Glacier, West Greenland to millimeter accuracy. At a site located ~30 km from the calving terminus, where the ice is ~600m thick and flows at ~700m/yr, we measure distinct seasonal variations in vertical velocities and vertical strain rates over a two-year period. Prior to the melt season (March–June), we observe increasingly non-linear englacial deformation with negative vertical strain rates (i.e. strain thinning) in the upper half of the ice column of ~0.03 a-1, whereas the ice below thickens under vertical ... |
format |
Article in Journal/Newspaper |
author |
Young, Tun Jan Christoffersen, Poul Doyle, Samuel Nicholls, Keith Stewart, Craig Hubbard, Bryn Hubbard, Alun Lok, Lai Bun Bennan, Paul Luckman, Adrian Bougamont, Marion |
author_facet |
Young, Tun Jan Christoffersen, Poul Doyle, Samuel Nicholls, Keith Stewart, Craig Hubbard, Bryn Hubbard, Alun Lok, Lai Bun Bennan, Paul Luckman, Adrian Bougamont, Marion |
author_sort |
Young, Tun Jan |
title |
Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
title_short |
Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
title_full |
Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
title_fullStr |
Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
title_full_unstemmed |
Physical conditions of fast glacier flow: 3. Seasonally-evolving ice deformation on Store Glacier, West Greenland ... |
title_sort |
physical conditions of fast glacier flow: 3. seasonally-evolving ice deformation on store glacier, west greenland ... |
publisher |
Wiley-Blackwell |
publishDate |
2019 |
url |
https://dx.doi.org/10.17863/cam.36083 https://www.repository.cam.ac.uk/handle/1810/288820 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_rights |
open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.36083 |
_version_ |
1789965912460230656 |