Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ...
© 2020 The Authors Expanding multibeam bathymetric data coverage over the last two decades has revealed extensive networks of submarine channels incised into bedrock on the Antarctic inner continental shelf. The large dimensions and prevalence of the channels implies the presence of an active subgla...
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ftdatacite:10.17863/cam.58132 2024-02-04T09:52:46+01:00 Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... Kirkham, JD Hogan, KA Larter, RD Arnold, NS Nitsche, FO Kuhn, G Gohl, K Anderson, JB Dowdeswell, JA 2020 https://dx.doi.org/10.17863/cam.58132 https://www.repository.cam.ac.uk/handle/1810/311042 en eng Elsevier BV open.access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 Subglacial meltwater channels Antarctica Continental shelf Morphometry Subglacial lakes Paleoglaciology Article ScholarlyArticle JournalArticle article-journal 2020 ftdatacite https://doi.org/10.17863/cam.58132 2024-01-05T14:24:54Z © 2020 The Authors Expanding multibeam bathymetric data coverage over the last two decades has revealed extensive networks of submarine channels incised into bedrock on the Antarctic inner continental shelf. The large dimensions and prevalence of the channels implies the presence of an active subglacial hydrological system beneath the past Antarctic Ice Sheet which we can use to learn more about inaccessible subglacial processes. Here, we map and analyse over 2700 bedrock channels situated across >100,000 km2 of continental shelf in the western Antarctic Peninsula and Amundsen Sea to produce the first inventory of submarine channels on the Antarctic inner continental shelf. Morphometric analysis reveals highly similar distributions of channel widths, depths, cross-sectional areas and geometric properties, with subtle differences between channels in the western Antarctic Peninsula compared to those in the Amundsen Sea. At 75–3400 m wide, 3–280 m deep, 160–290,000 m2 in cross-sectional area, and typically 8 ... Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Amundsen Sea Antarctic Antarctic Peninsula The Antarctic |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Subglacial meltwater channels Antarctica Continental shelf Morphometry Subglacial lakes Paleoglaciology |
spellingShingle |
Subglacial meltwater channels Antarctica Continental shelf Morphometry Subglacial lakes Paleoglaciology Kirkham, JD Hogan, KA Larter, RD Arnold, NS Nitsche, FO Kuhn, G Gohl, K Anderson, JB Dowdeswell, JA Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
topic_facet |
Subglacial meltwater channels Antarctica Continental shelf Morphometry Subglacial lakes Paleoglaciology |
description |
© 2020 The Authors Expanding multibeam bathymetric data coverage over the last two decades has revealed extensive networks of submarine channels incised into bedrock on the Antarctic inner continental shelf. The large dimensions and prevalence of the channels implies the presence of an active subglacial hydrological system beneath the past Antarctic Ice Sheet which we can use to learn more about inaccessible subglacial processes. Here, we map and analyse over 2700 bedrock channels situated across >100,000 km2 of continental shelf in the western Antarctic Peninsula and Amundsen Sea to produce the first inventory of submarine channels on the Antarctic inner continental shelf. Morphometric analysis reveals highly similar distributions of channel widths, depths, cross-sectional areas and geometric properties, with subtle differences between channels in the western Antarctic Peninsula compared to those in the Amundsen Sea. At 75–3400 m wide, 3–280 m deep, 160–290,000 m2 in cross-sectional area, and typically 8 ... |
format |
Article in Journal/Newspaper |
author |
Kirkham, JD Hogan, KA Larter, RD Arnold, NS Nitsche, FO Kuhn, G Gohl, K Anderson, JB Dowdeswell, JA |
author_facet |
Kirkham, JD Hogan, KA Larter, RD Arnold, NS Nitsche, FO Kuhn, G Gohl, K Anderson, JB Dowdeswell, JA |
author_sort |
Kirkham, JD |
title |
Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
title_short |
Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
title_full |
Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
title_fullStr |
Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
title_full_unstemmed |
Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology ... |
title_sort |
morphometry of bedrock meltwater channels on antarctic inner continental shelves: implications for channel development and subglacial hydrology ... |
publisher |
Elsevier BV |
publishDate |
2020 |
url |
https://dx.doi.org/10.17863/cam.58132 https://www.repository.cam.ac.uk/handle/1810/311042 |
geographic |
Amundsen Sea Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Amundsen Sea Antarctic Antarctic Peninsula The Antarctic |
genre |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet |
op_rights |
open.access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.58132 |
_version_ |
1789960876906774528 |