Topographic modulation of outlet glaciers in Greenland: a review
Abstract Bed topography is a critical parameter for determining the modern-day and future dynamics of ice sheets and their outlet glaciers. This is because the topography controls the state of stress for glaciers. At glacier termini, topography can influence the timing of terminus retreat by control...
Published in: | Annals of Glaciology |
---|---|
Main Authors: | , |
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.2023.55 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000551 |
id |
crcambridgeupr:10.1017/aog.2023.55 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/aog.2023.55 2024-06-09T07:38:32+00:00 Topographic modulation of outlet glaciers in Greenland: a review Catania, Ginny Felikson, Denis Earth Sciences Division Earth Sciences Division 2022 http://dx.doi.org/10.1017/aog.2023.55 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000551 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Annals of Glaciology volume 63, issue 87-89, page 171-177 ISSN 0260-3055 1727-5644 journal-article 2022 crcambridgeupr https://doi.org/10.1017/aog.2023.55 2024-05-15T13:09:22Z Abstract Bed topography is a critical parameter for determining the modern-day and future dynamics of ice sheets and their outlet glaciers. This is because the topography controls the state of stress for glaciers. At glacier termini, topography can influence the timing of terminus retreat by controlling access to warm ocean waters and/or by influencing the ability of a glacier terminus to retreat over bed bumps (moraines). Inland from the terminus, the topography can also influence where glacier retreat and thinning can stabilize. In part, this is because of knickpoints in bed topography created through glacial erosion that may influence the extent to which thinning can diffuse inland for an individual glacier and thus, the timing and magnitude of long-term mass loss. Here we provide a review of the current literature on these topics. While much of the reviewed literature assumes that topography is stable on relevant timescales to humans, new research suggests that topography may change much faster than previously thought and this further complicates our ability to project future outlet glacier change. Article in Journal/Newspaper Annals of Glaciology glacier Greenland Cambridge University Press Greenland Annals of Glaciology 63 87-89 171 177 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Bed topography is a critical parameter for determining the modern-day and future dynamics of ice sheets and their outlet glaciers. This is because the topography controls the state of stress for glaciers. At glacier termini, topography can influence the timing of terminus retreat by controlling access to warm ocean waters and/or by influencing the ability of a glacier terminus to retreat over bed bumps (moraines). Inland from the terminus, the topography can also influence where glacier retreat and thinning can stabilize. In part, this is because of knickpoints in bed topography created through glacial erosion that may influence the extent to which thinning can diffuse inland for an individual glacier and thus, the timing and magnitude of long-term mass loss. Here we provide a review of the current literature on these topics. While much of the reviewed literature assumes that topography is stable on relevant timescales to humans, new research suggests that topography may change much faster than previously thought and this further complicates our ability to project future outlet glacier change. |
author2 |
Earth Sciences Division Earth Sciences Division |
format |
Article in Journal/Newspaper |
author |
Catania, Ginny Felikson, Denis |
spellingShingle |
Catania, Ginny Felikson, Denis Topographic modulation of outlet glaciers in Greenland: a review |
author_facet |
Catania, Ginny Felikson, Denis |
author_sort |
Catania, Ginny |
title |
Topographic modulation of outlet glaciers in Greenland: a review |
title_short |
Topographic modulation of outlet glaciers in Greenland: a review |
title_full |
Topographic modulation of outlet glaciers in Greenland: a review |
title_fullStr |
Topographic modulation of outlet glaciers in Greenland: a review |
title_full_unstemmed |
Topographic modulation of outlet glaciers in Greenland: a review |
title_sort |
topographic modulation of outlet glaciers in greenland: a review |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/aog.2023.55 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000551 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Annals of Glaciology glacier Greenland |
genre_facet |
Annals of Glaciology glacier Greenland |
op_source |
Annals of Glaciology volume 63, issue 87-89, page 171-177 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2023.55 |
container_title |
Annals of Glaciology |
container_volume |
63 |
container_issue |
87-89 |
container_start_page |
171 |
op_container_end_page |
177 |
_version_ |
1801373508830232576 |