Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site
The Müller Ice Cap will soon set the scene for a new drilling project. Therefore, ice thickness estimates are necessary for planning, since thickness measurements of the ice cap are sparse. Here, three models are presented and compared: (i) a simple Semi-Empirical Ice Thickness Model (SEITMo) based...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/420791 2023-07-23T04:19:45+02:00 Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site Zinck, Ann-Sofie Priergaard Grinsted, Aslak Sub Dynamics Meteorology Marine and Atmospheric Research 2022-04-21 application/pdf https://dspace.library.uu.nl/handle/1874/420791 en eng 1994-0416 https://dspace.library.uu.nl/handle/1874/420791 info:eu-repo/semantics/OpenAccess Article 2022 ftunivutrecht 2023-07-02T03:41:27Z The Müller Ice Cap will soon set the scene for a new drilling project. Therefore, ice thickness estimates are necessary for planning, since thickness measurements of the ice cap are sparse. Here, three models are presented and compared: (i) a simple Semi-Empirical Ice Thickness Model (SEITMo) based on an inversion of the shallow-ice approximation by the use of a single radar line in combination with the glacier outline, surface slope, and elevation; (ii) an iterative inverse method using the Parallel Ice Sheet Model (PISM), and (iii) a velocity-based inversion of the shallow-ice approximation. The velocity-based inversion underestimates the ice thickness at the ice cap top, making the model less useful to aid in drill site selection, whereas PISM and the SEITMo mostly agree about a good drill site candidate. However, the new SEITMo is insensitive to mass balance, computationally fast, and provides as good fits as PISM. Article in Journal/Newspaper Ice cap Ice Sheet Utrecht University Repository Müller Ice Cap ENVELOPE(-91.501,-91.501,79.785,79.785) |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
description |
The Müller Ice Cap will soon set the scene for a new drilling project. Therefore, ice thickness estimates are necessary for planning, since thickness measurements of the ice cap are sparse. Here, three models are presented and compared: (i) a simple Semi-Empirical Ice Thickness Model (SEITMo) based on an inversion of the shallow-ice approximation by the use of a single radar line in combination with the glacier outline, surface slope, and elevation; (ii) an iterative inverse method using the Parallel Ice Sheet Model (PISM), and (iii) a velocity-based inversion of the shallow-ice approximation. The velocity-based inversion underestimates the ice thickness at the ice cap top, making the model less useful to aid in drill site selection, whereas PISM and the SEITMo mostly agree about a good drill site candidate. However, the new SEITMo is insensitive to mass balance, computationally fast, and provides as good fits as PISM. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Zinck, Ann-Sofie Priergaard Grinsted, Aslak |
spellingShingle |
Zinck, Ann-Sofie Priergaard Grinsted, Aslak Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
author_facet |
Zinck, Ann-Sofie Priergaard Grinsted, Aslak |
author_sort |
Zinck, Ann-Sofie Priergaard |
title |
Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
title_short |
Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
title_full |
Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
title_fullStr |
Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
title_full_unstemmed |
Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
title_sort |
brief communication: estimating the ice thickness of the müller ice cap to support selection of a drill site |
publishDate |
2022 |
url |
https://dspace.library.uu.nl/handle/1874/420791 |
long_lat |
ENVELOPE(-91.501,-91.501,79.785,79.785) |
geographic |
Müller Ice Cap |
geographic_facet |
Müller Ice Cap |
genre |
Ice cap Ice Sheet |
genre_facet |
Ice cap Ice Sheet |
op_relation |
1994-0416 https://dspace.library.uu.nl/handle/1874/420791 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772183128518950912 |