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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Copernicus Publications
2022
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Online Access: | https://doi.org/10.5194/tc-16-1399-2022 https://doaj.org/article/45ce19a7d2d743b7951fcdeefc84f9de |
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ftdoajarticles:oai:doaj.org/article:45ce19a7d2d743b7951fcdeefc84f9de 2023-05-15T16:38:03+02:00 Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site A.-S. P. Zinck A. Grinsted 2022-04-01T00:00:00Z https://doi.org/10.5194/tc-16-1399-2022 https://doaj.org/article/45ce19a7d2d743b7951fcdeefc84f9de EN eng Copernicus Publications https://tc.copernicus.org/articles/16/1399/2022/tc-16-1399-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-1399-2022 1994-0416 1994-0424 https://doaj.org/article/45ce19a7d2d743b7951fcdeefc84f9de The Cryosphere, Vol 16, Pp 1399-1407 (2022) Environmental sciences GE1-350 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.5194/tc-16-1399-2022 2022-12-31T00:06:02Z 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 The Cryosphere Directory of Open Access Journals: DOAJ Articles Müller Ice Cap ENVELOPE(-91.501,-91.501,79.785,79.785) The Cryosphere 16 4 1399 1407 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 A.-S. P. Zinck A. Grinsted Brief communication: Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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. |
format |
Article in Journal/Newspaper |
author |
A.-S. P. Zinck A. Grinsted |
author_facet |
A.-S. P. Zinck A. Grinsted |
author_sort |
A.-S. P. Zinck |
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 |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-1399-2022 https://doaj.org/article/45ce19a7d2d743b7951fcdeefc84f9de |
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 The Cryosphere |
genre_facet |
Ice cap Ice Sheet The Cryosphere |
op_source |
The Cryosphere, Vol 16, Pp 1399-1407 (2022) |
op_relation |
https://tc.copernicus.org/articles/16/1399/2022/tc-16-1399-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-1399-2022 1994-0416 1994-0424 https://doaj.org/article/45ce19a7d2d743b7951fcdeefc84f9de |
op_doi |
https://doi.org/10.5194/tc-16-1399-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
4 |
container_start_page |
1399 |
op_container_end_page |
1407 |
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1766028340157743104 |