Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ...
Increased summer ice velocities on the Greenland ice sheet are driven by meltwater input to the subglacial environment. However, spatial patterns of surface input and partitioning of meltwater between different pathways to the base remain poorly understood. To further our understanding of surface dr...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
2017
|
Subjects: | |
Online Access: | https://dx.doi.org/10.17863/cam.8585 https://www.repository.cam.ac.uk/handle/1810/263259 |
id |
ftdatacite:10.17863/cam.8585 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.17863/cam.8585 2024-02-27T08:40:44+00:00 Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... Koziol, C Arnold, N Pope, A Colgan, W 2017 https://dx.doi.org/10.17863/cam.8585 https://www.repository.cam.ac.uk/handle/1810/263259 en eng Cambridge University Press open.access Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 crevasses glacier hydrology surface-melt article-journal ScholarlyArticle JournalArticle Article 2017 ftdatacite https://doi.org/10.17863/cam.8585 2024-02-01T14:55:16Z Increased summer ice velocities on the Greenland ice sheet are driven by meltwater input to the subglacial environment. However, spatial patterns of surface input and partitioning of meltwater between different pathways to the base remain poorly understood. To further our understanding of surface drainage, we apply a supraglacial hydrology model to the Paakitsoq region, West Greenland for three contrasting melt seasons. During an average melt season, crevasses drain ~47% of surface runoff, lake hydrofracture drains ~3% during the hydrofracturing events themselves, while the subsequent surface-to-bed connections drain ~21% and moulins outside of lake basins drain ~15%. Lake hydrofracture forms the primary drainage pathway at higher elevations (above ~850 m) while crevasses drain a significant proportion of meltwater at lower elevations. During the two higher intensity melt seasons, model results show an increase (~5 and ~6% of total surface runoff) in the proportion of runoff drained above ~1300 m relative to ... 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 |
crevasses glacier hydrology surface-melt |
spellingShingle |
crevasses glacier hydrology surface-melt Koziol, C Arnold, N Pope, A Colgan, W Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
topic_facet |
crevasses glacier hydrology surface-melt |
description |
Increased summer ice velocities on the Greenland ice sheet are driven by meltwater input to the subglacial environment. However, spatial patterns of surface input and partitioning of meltwater between different pathways to the base remain poorly understood. To further our understanding of surface drainage, we apply a supraglacial hydrology model to the Paakitsoq region, West Greenland for three contrasting melt seasons. During an average melt season, crevasses drain ~47% of surface runoff, lake hydrofracture drains ~3% during the hydrofracturing events themselves, while the subsequent surface-to-bed connections drain ~21% and moulins outside of lake basins drain ~15%. Lake hydrofracture forms the primary drainage pathway at higher elevations (above ~850 m) while crevasses drain a significant proportion of meltwater at lower elevations. During the two higher intensity melt seasons, model results show an increase (~5 and ~6% of total surface runoff) in the proportion of runoff drained above ~1300 m relative to ... |
format |
Article in Journal/Newspaper |
author |
Koziol, C Arnold, N Pope, A Colgan, W |
author_facet |
Koziol, C Arnold, N Pope, A Colgan, W |
author_sort |
Koziol, C |
title |
Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
title_short |
Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
title_full |
Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
title_fullStr |
Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
title_full_unstemmed |
Quantifying supraglacial meltwater pathways in the Paakitsoq region, West Greenland ... |
title_sort |
quantifying supraglacial meltwater pathways in the paakitsoq region, west greenland ... |
publisher |
Cambridge University Press |
publishDate |
2017 |
url |
https://dx.doi.org/10.17863/cam.8585 https://www.repository.cam.ac.uk/handle/1810/263259 |
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 Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 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.8585 |
_version_ |
1792047869589454848 |