Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ...
Marine-terminating outlet glaciers of the Greenland ice sheet make significant contributions to global sea level rise, yet the conditions that facilitate their fast flow remain poorly constrained owing to a paucity of data. We drilled and instrumented seven boreholes on Store Glacier, Greenland, to...
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ftdatacite:10.17863/cam.17485 2024-02-04T10:00:34+01:00 Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... Doyle, SH Hubbard, B Christoffersen, Poul Young, TJ Hofstede, C Bougamont, MH Box, JE Hubbard, A 2018 https://dx.doi.org/10.17863/cam.17485 https://www.repository.cam.ac.uk/handle/1810/270570 en eng Wiley-Blackwell https://dx.doi.org/10.6084/m9.figshare.5745294 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 Greenland ice sheet hydrology dynamics borehole sediment Article ScholarlyArticle JournalArticle article-journal 2018 ftdatacite https://doi.org/10.17863/cam.1748510.6084/m9.figshare.5745294 2024-01-05T16:30:12Z Marine-terminating outlet glaciers of the Greenland ice sheet make significant contributions to global sea level rise, yet the conditions that facilitate their fast flow remain poorly constrained owing to a paucity of data. We drilled and instrumented seven boreholes on Store Glacier, Greenland, to monitor subglacial water pressure, temperature, electrical conductivity and turbidity along with englacial ice temperature and deformation. These observations were supplemented by surface velocity and meteorological measurements to gain insight into the conditions and mechanisms of fast glacier flow. Located 30 km from the calving front, each borehole drained rapidly on attaining 600m depth indicating a direct connection with an active subglacial hydrological system. Persistently high subglacial water pressures indicate low effective pressure (180 - 280 kPa), with small amplitude variations correlated with notable peaks in surface velocity driven by the diurnal melt cycle and longer periods of melt and rainfall. ... 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 |
Greenland ice sheet hydrology dynamics borehole sediment |
spellingShingle |
Greenland ice sheet hydrology dynamics borehole sediment Doyle, SH Hubbard, B Christoffersen, Poul Young, TJ Hofstede, C Bougamont, MH Box, JE Hubbard, A Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
topic_facet |
Greenland ice sheet hydrology dynamics borehole sediment |
description |
Marine-terminating outlet glaciers of the Greenland ice sheet make significant contributions to global sea level rise, yet the conditions that facilitate their fast flow remain poorly constrained owing to a paucity of data. We drilled and instrumented seven boreholes on Store Glacier, Greenland, to monitor subglacial water pressure, temperature, electrical conductivity and turbidity along with englacial ice temperature and deformation. These observations were supplemented by surface velocity and meteorological measurements to gain insight into the conditions and mechanisms of fast glacier flow. Located 30 km from the calving front, each borehole drained rapidly on attaining 600m depth indicating a direct connection with an active subglacial hydrological system. Persistently high subglacial water pressures indicate low effective pressure (180 - 280 kPa), with small amplitude variations correlated with notable peaks in surface velocity driven by the diurnal melt cycle and longer periods of melt and rainfall. ... |
format |
Article in Journal/Newspaper |
author |
Doyle, SH Hubbard, B Christoffersen, Poul Young, TJ Hofstede, C Bougamont, MH Box, JE Hubbard, A |
author_facet |
Doyle, SH Hubbard, B Christoffersen, Poul Young, TJ Hofstede, C Bougamont, MH Box, JE Hubbard, A |
author_sort |
Doyle, SH |
title |
Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
title_short |
Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
title_full |
Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
title_fullStr |
Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
title_full_unstemmed |
Physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of Store Glacier, West Greenland ... |
title_sort |
physical conditions of fast glacier flow: 1. measurements from boreholes drilled to the bed of store glacier, west greenland ... |
publisher |
Wiley-Blackwell |
publishDate |
2018 |
url |
https://dx.doi.org/10.17863/cam.17485 https://www.repository.cam.ac.uk/handle/1810/270570 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
https://dx.doi.org/10.6084/m9.figshare.5745294 |
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.1748510.6084/m9.figshare.5745294 |
_version_ |
1789965909258928128 |