Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets
Accepted manuscript version. Published version available at https://doi.org/10.1016/j.quascirev.2018.10.007 . Licensed CC BY-NC-ND 4.0. Subglacial hydrology modulates how ice sheets flow, respond to climate, and deliver meltwater, sediment and nutrients to proglacial and marine environments. Here, w...
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ftunivtroemsoe:oai:munin.uit.no:10037/14088 2023-05-15T13:52:48+02:00 Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets Shackleton, Calvin Patton, Henry Hubbard, Alun Lloyd Winsborrow, Monica Kingslake, Jonathan Esteves, Mariana da Silveira Ramos Andreassen, Karin Greenwood, Sarah L. 2018-10-17 https://hdl.handle.net/10037/14088 https://doi.org/10.1016/j.quascirev.2018.10.007 eng eng Elsevier Quaternary Science Reviews info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/PETROMAKS2/200672/Norway/Glaciations in the Barents Sea area// Shackleton, C., Patton, H., Hubbard, A.L., Winsborrow, M., Kingslake, J., Esteves, M.d.S.R., . Greenwood, S.L. (2018). Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets. Quaternary Science Reviews, 201, 13-28. https://doi.org/10.1016/j.quascirev.2018.10.007 FRIDAID 1623468 doi:10.1016/j.quascirev.2018.10.007 0277-3791 1873-457X https://hdl.handle.net/10037/14088 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Hydrogeology: 467 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Hydrogeologi: 467 Subglacial lakes Basal hydrology Meltwater drainage Fennoscandian ice sheet Barents sea ice sheet Eurasian ice sheet complex late Weichselian deglaciation late Weichselian Last glacial maximum Glacial geology Glaciation Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1016/j.quascirev.2018.10.007 2021-06-25T17:56:10Z Accepted manuscript version. Published version available at https://doi.org/10.1016/j.quascirev.2018.10.007 . Licensed CC BY-NC-ND 4.0. Subglacial hydrology modulates how ice sheets flow, respond to climate, and deliver meltwater, sediment and nutrients to proglacial and marine environments. Here, we investigate the development of subglacial lakes and drainage networks beneath the Fennoscandian and Barents Sea ice sheets over the Late Weichselian. Utilizing an established coupled climate/ice flow model, we calculate high-resolution, spatio-temporal changes in subglacial hydraulic potential from ice sheet build-up (∼37 ka BP) to complete deglaciation (∼10 ka BP). Our analysis predicts up to 3500 potential subglacial lakes, the largest of which was 658 km2, and over 70% of which had surface areas <10 km2, comparable with subglacial lake-size distributions beneath the Antarctic Ice Sheet. Asynchronous evolution of the Fennoscandian Ice Sheet into the flatter relief of northeast Europe affected patterns of subglacial drainage, with up to 100 km3 more water impounded within subglacial lakes during ice build-up compared to retreat. Furthermore, we observe frequent fill/drain cycles within clusters of subglacial lakes at the onset zones and margins of ice streams that would have affected their dynamics. Our results resonate with mapping of large subglacial channel networks indicative of high-discharge meltwater drainage through the Gulf of Bothnia and central Barents Sea. By tracking the migration of meltwater drainage outlets during deglaciation, we constrain locations most susceptible to focussed discharge, including the western continental shelf-break where subglacial sediment delivery led to the development of major trough-mouth fans. Maps of hydraulic potential minima that persist throughout the Late Weichselian reveal potential sites for preserved subglacial lake sediments, thereby defining useful targets for further field-investigation. Article in Journal/Newspaper Antarc* Antarctic Arctic Barents Sea Fennoscandian Ice Sheet Sea ice University of Tromsø: Munin Open Research Archive Antarctic Barents Sea The Antarctic Quaternary Science Reviews 201 13 28 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Hydrogeology: 467 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Hydrogeologi: 467 Subglacial lakes Basal hydrology Meltwater drainage Fennoscandian ice sheet Barents sea ice sheet Eurasian ice sheet complex late Weichselian deglaciation late Weichselian Last glacial maximum Glacial geology Glaciation |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Hydrogeology: 467 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Hydrogeologi: 467 Subglacial lakes Basal hydrology Meltwater drainage Fennoscandian ice sheet Barents sea ice sheet Eurasian ice sheet complex late Weichselian deglaciation late Weichselian Last glacial maximum Glacial geology Glaciation Shackleton, Calvin Patton, Henry Hubbard, Alun Lloyd Winsborrow, Monica Kingslake, Jonathan Esteves, Mariana da Silveira Ramos Andreassen, Karin Greenwood, Sarah L. Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Hydrogeology: 467 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Hydrogeologi: 467 Subglacial lakes Basal hydrology Meltwater drainage Fennoscandian ice sheet Barents sea ice sheet Eurasian ice sheet complex late Weichselian deglaciation late Weichselian Last glacial maximum Glacial geology Glaciation |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1016/j.quascirev.2018.10.007 . Licensed CC BY-NC-ND 4.0. Subglacial hydrology modulates how ice sheets flow, respond to climate, and deliver meltwater, sediment and nutrients to proglacial and marine environments. Here, we investigate the development of subglacial lakes and drainage networks beneath the Fennoscandian and Barents Sea ice sheets over the Late Weichselian. Utilizing an established coupled climate/ice flow model, we calculate high-resolution, spatio-temporal changes in subglacial hydraulic potential from ice sheet build-up (∼37 ka BP) to complete deglaciation (∼10 ka BP). Our analysis predicts up to 3500 potential subglacial lakes, the largest of which was 658 km2, and over 70% of which had surface areas <10 km2, comparable with subglacial lake-size distributions beneath the Antarctic Ice Sheet. Asynchronous evolution of the Fennoscandian Ice Sheet into the flatter relief of northeast Europe affected patterns of subglacial drainage, with up to 100 km3 more water impounded within subglacial lakes during ice build-up compared to retreat. Furthermore, we observe frequent fill/drain cycles within clusters of subglacial lakes at the onset zones and margins of ice streams that would have affected their dynamics. Our results resonate with mapping of large subglacial channel networks indicative of high-discharge meltwater drainage through the Gulf of Bothnia and central Barents Sea. By tracking the migration of meltwater drainage outlets during deglaciation, we constrain locations most susceptible to focussed discharge, including the western continental shelf-break where subglacial sediment delivery led to the development of major trough-mouth fans. Maps of hydraulic potential minima that persist throughout the Late Weichselian reveal potential sites for preserved subglacial lake sediments, thereby defining useful targets for further field-investigation. |
format |
Article in Journal/Newspaper |
author |
Shackleton, Calvin Patton, Henry Hubbard, Alun Lloyd Winsborrow, Monica Kingslake, Jonathan Esteves, Mariana da Silveira Ramos Andreassen, Karin Greenwood, Sarah L. |
author_facet |
Shackleton, Calvin Patton, Henry Hubbard, Alun Lloyd Winsborrow, Monica Kingslake, Jonathan Esteves, Mariana da Silveira Ramos Andreassen, Karin Greenwood, Sarah L. |
author_sort |
Shackleton, Calvin |
title |
Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
title_short |
Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
title_full |
Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
title_fullStr |
Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
title_full_unstemmed |
Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets |
title_sort |
subglacial water storage and drainage beneath the fennoscandian and barents sea ice sheets |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14088 https://doi.org/10.1016/j.quascirev.2018.10.007 |
geographic |
Antarctic Barents Sea The Antarctic |
geographic_facet |
Antarctic Barents Sea The Antarctic |
genre |
Antarc* Antarctic Arctic Barents Sea Fennoscandian Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Arctic Barents Sea Fennoscandian Ice Sheet Sea ice |
op_relation |
Quaternary Science Reviews info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/PETROMAKS2/200672/Norway/Glaciations in the Barents Sea area// Shackleton, C., Patton, H., Hubbard, A.L., Winsborrow, M., Kingslake, J., Esteves, M.d.S.R., . Greenwood, S.L. (2018). Subglacial water storage and drainage beneath the Fennoscandian and Barents Sea ice sheets. Quaternary Science Reviews, 201, 13-28. https://doi.org/10.1016/j.quascirev.2018.10.007 FRIDAID 1623468 doi:10.1016/j.quascirev.2018.10.007 0277-3791 1873-457X https://hdl.handle.net/10037/14088 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2018.10.007 |
container_title |
Quaternary Science Reviews |
container_volume |
201 |
container_start_page |
13 |
op_container_end_page |
28 |
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1766257554694864896 |