The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective
Abstract Subglacial hydrology is an important component of the ice dynamic system in Antarctica but is challenging to investigate due to the large spatial scales of the catchment systems, the ice thickness, and remote location. Here I discuss key discoveries about Antarctic subglacial hydrology from...
Published in: | Annals of Glaciology |
---|---|
Main Author: | |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/aog.2023.9 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000095 |
id |
crcambridgeupr:10.1017/aog.2023.9 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/aog.2023.9 2024-06-23T07:45:36+00:00 The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective Dow, Christine F. Canada Research Chairs Natural Sciences and Engineering Research Council of Canada 2022 http://dx.doi.org/10.1017/aog.2023.9 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000095 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Annals of Glaciology volume 63, issue 87-89, page 49-54 ISSN 0260-3055 1727-5644 journal-article 2022 crcambridgeupr https://doi.org/10.1017/aog.2023.9 2024-05-29T08:09:45Z Abstract Subglacial hydrology is an important component of the ice dynamic system in Antarctica but is challenging to investigate due to the large spatial scales of the catchment systems, the ice thickness, and remote location. Here I discuss key discoveries about Antarctic subglacial hydrology from the Glacier Drainage System (GlaDS) model, including the presence of long, often high-pressure, subglacial channels. These channels pump tens of cubic metres per second of freshwater into ice-shelf cavities and directly affect melt rates at the critical grounding zone regions. Future ice dynamics and ice-shelf cavity models should take subglacial hydrology into account if they are to accurately predict future behaviour of the Antarctic Ice Sheet. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Cambridge University Press Antarctic The Antarctic Annals of Glaciology 1 6 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Subglacial hydrology is an important component of the ice dynamic system in Antarctica but is challenging to investigate due to the large spatial scales of the catchment systems, the ice thickness, and remote location. Here I discuss key discoveries about Antarctic subglacial hydrology from the Glacier Drainage System (GlaDS) model, including the presence of long, often high-pressure, subglacial channels. These channels pump tens of cubic metres per second of freshwater into ice-shelf cavities and directly affect melt rates at the critical grounding zone regions. Future ice dynamics and ice-shelf cavity models should take subglacial hydrology into account if they are to accurately predict future behaviour of the Antarctic Ice Sheet. |
author2 |
Canada Research Chairs Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Dow, Christine F. |
spellingShingle |
Dow, Christine F. The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
author_facet |
Dow, Christine F. |
author_sort |
Dow, Christine F. |
title |
The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
title_short |
The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
title_full |
The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
title_fullStr |
The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
title_full_unstemmed |
The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective |
title_sort |
role of subglacial hydrology in antarctic ice sheet dynamics and stability: a modelling perspective |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/aog.2023.9 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000095 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica Ice Sheet Ice Shelf |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica Ice Sheet Ice Shelf |
op_source |
Annals of Glaciology volume 63, issue 87-89, page 49-54 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2023.9 |
container_title |
Annals of Glaciology |
container_start_page |
1 |
op_container_end_page |
6 |
_version_ |
1802641478935117824 |