A high-resolution synthetic bed elevation grid of the Antarctic continent
Digital elevation models of Antarctic bed topography are smoothed and interpolated onto low-resolution ( > 1 km) grids as current observed topography data are generally sparsely and unevenly sampled. This issue has potential implications for numerical simulations of ice-sheet dynamics, especially...
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2017
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00010262 2023-05-15T13:34:49+02:00 A high-resolution synthetic bed elevation grid of the Antarctic continent Graham, Felicity S. Roberts, Jason L. Galton-Fenzi, Ben K. Young, Duncan Blankenship, Donald Siegert, Martin J. 2017-05 electronic https://doi.org/10.5194/essd-9-267-2017 https://noa.gwlb.de/receive/cop_mods_00010262 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010219/essd-9-267-2017.pdf https://essd.copernicus.org/articles/9/267/2017/essd-9-267-2017.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-9-267-2017 https://noa.gwlb.de/receive/cop_mods_00010262 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010219/essd-9-267-2017.pdf https://essd.copernicus.org/articles/9/267/2017/essd-9-267-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/essd-9-267-2017 2022-02-08T22:57:09Z Digital elevation models of Antarctic bed topography are smoothed and interpolated onto low-resolution ( > 1 km) grids as current observed topography data are generally sparsely and unevenly sampled. This issue has potential implications for numerical simulations of ice-sheet dynamics, especially in regions prone to instability where detailed knowledge of the topography, including fine-scale roughness, is required. Here, we present a high-resolution (100 m) synthetic bed elevation terrain for Antarctica, encompassing the continent, continental shelf, and seas south of 60° S. Although not identically matching observations, the synthetic bed surface – denoted as HRES – preserves topographic roughness characteristics of airborne and ground-based ice-penetrating radar data measured by the ICECAP (Investigating the Cryospheric Evolution of the Central Antarctic Plate) consortium or used to create the Bedmap1 compilation. Broad-scale ( > 5 km resolution) features of the Antarctic landscape are incorporated using a low-pass filter of the Bedmap2 bed elevation data. HRES has applicability in high-resolution ice-sheet modelling studies, including investigations of the interaction between topography, ice-sheet dynamics, and hydrology, where processes are highly sensitive to bed elevations and fine-scale roughness. The data are available for download from the Australian Antarctic Data Centre (doi:10.4225/15/57464ADE22F50). Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Niedersächsisches Online-Archiv NOA Antarctic The Antarctic Earth System Science Data 9 1 267 279 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Graham, Felicity S. Roberts, Jason L. Galton-Fenzi, Ben K. Young, Duncan Blankenship, Donald Siegert, Martin J. A high-resolution synthetic bed elevation grid of the Antarctic continent |
topic_facet |
article Verlagsveröffentlichung |
description |
Digital elevation models of Antarctic bed topography are smoothed and interpolated onto low-resolution ( > 1 km) grids as current observed topography data are generally sparsely and unevenly sampled. This issue has potential implications for numerical simulations of ice-sheet dynamics, especially in regions prone to instability where detailed knowledge of the topography, including fine-scale roughness, is required. Here, we present a high-resolution (100 m) synthetic bed elevation terrain for Antarctica, encompassing the continent, continental shelf, and seas south of 60° S. Although not identically matching observations, the synthetic bed surface – denoted as HRES – preserves topographic roughness characteristics of airborne and ground-based ice-penetrating radar data measured by the ICECAP (Investigating the Cryospheric Evolution of the Central Antarctic Plate) consortium or used to create the Bedmap1 compilation. Broad-scale ( > 5 km resolution) features of the Antarctic landscape are incorporated using a low-pass filter of the Bedmap2 bed elevation data. HRES has applicability in high-resolution ice-sheet modelling studies, including investigations of the interaction between topography, ice-sheet dynamics, and hydrology, where processes are highly sensitive to bed elevations and fine-scale roughness. The data are available for download from the Australian Antarctic Data Centre (doi:10.4225/15/57464ADE22F50). |
format |
Article in Journal/Newspaper |
author |
Graham, Felicity S. Roberts, Jason L. Galton-Fenzi, Ben K. Young, Duncan Blankenship, Donald Siegert, Martin J. |
author_facet |
Graham, Felicity S. Roberts, Jason L. Galton-Fenzi, Ben K. Young, Duncan Blankenship, Donald Siegert, Martin J. |
author_sort |
Graham, Felicity S. |
title |
A high-resolution synthetic bed elevation grid of the Antarctic continent |
title_short |
A high-resolution synthetic bed elevation grid of the Antarctic continent |
title_full |
A high-resolution synthetic bed elevation grid of the Antarctic continent |
title_fullStr |
A high-resolution synthetic bed elevation grid of the Antarctic continent |
title_full_unstemmed |
A high-resolution synthetic bed elevation grid of the Antarctic continent |
title_sort |
high-resolution synthetic bed elevation grid of the antarctic continent |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/essd-9-267-2017 https://noa.gwlb.de/receive/cop_mods_00010262 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010219/essd-9-267-2017.pdf https://essd.copernicus.org/articles/9/267/2017/essd-9-267-2017.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-9-267-2017 https://noa.gwlb.de/receive/cop_mods_00010262 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010219/essd-9-267-2017.pdf https://essd.copernicus.org/articles/9/267/2017/essd-9-267-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-9-267-2017 |
container_title |
Earth System Science Data |
container_volume |
9 |
container_issue |
1 |
container_start_page |
267 |
op_container_end_page |
279 |
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1766057917690150912 |