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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Published in:Quaternary Science Reviews
Main Authors: Shackleton, Calvin, Patton, Henry, Hubbard, Alun Lloyd, Winsborrow, Monica, Kingslake, Jonathan, Esteves, Mariana da Silveira Ramos, Andreassen, Karin, Greenwood, Sarah L.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2018
Subjects:
Online Access:https://hdl.handle.net/10037/14088
https://doi.org/10.1016/j.quascirev.2018.10.007
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spelling 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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