Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica
We analyze the internal structure of two polythermal glaciers, Hurd and Johnsons, located on Livingston Island, Antarctica, using 200 and 750 MHz GPR data collected in 2003/04, 2008/09 and 2016/17 field campaigns. Based on the different permittivities of snow and ice, we determined the thickness dis...
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ftunivpmadrid:oai:oa.upm.es:80923 2024-04-28T07:55:22+00:00 Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica Letamendia Andres, Unai Navarro Valero, Francisco José Benjumea, Beatriz 2023-12-07 application/pdf https://oa.upm.es/80923/ eng eng E.T.S.I. Telecomunicación (UPM) info:eu-repo/semantics/altIdentifier/doi/10.1017/aog.2023.73 https://oa.upm.es/80923/ https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Annals of Glaciology, ISSN 02603055, 2023-12-07 Geología info:eu-repo/semantics/article Artículo PeerReviewed 2023 ftunivpmadrid https://doi.org/10.1017/aog.2023.73 2024-04-09T23:32:48Z We analyze the internal structure of two polythermal glaciers, Hurd and Johnsons, located on Livingston Island, Antarctica, using 200 and 750 MHz GPR data collected in 2003/04, 2008/09 and 2016/17 field campaigns. Based on the different permittivities of snow and ice, we determined the thickness distribution of the end-of winter snow cover and of the cold ice layer. Their knowledge is fundamental for mass balance and glacier dynamics studies due to the different densities and rheological properties of such media. The average measured thicknesses for the snow and cold ice layers (the latter including the snow layer) were of 1.44 +/- 0.09 and 29.1 +/- 1.5 m, and their corresponding maxima were of 2.45 +/- 0.21 and 80.8 +/- 2.5 m. GPR snow profiling allowed for extension of the coverage of the snow thickness survey, but added little information to that supplied by snow pits, stake readings and manual snow probing, because of the multiplicity of reflections within the seasonal snowpack caused by internal ice layers and lenses. The polythermal structure determined for Hurd Glacier fits into the so-called Scandinavian type, seldom reported for the Antarctic region. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica Livingston Island Archivo Digital UPM (Universidad Politécnica de Madrid) Annals of Glaciology 1 9 |
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Open Polar |
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Archivo Digital UPM (Universidad Politécnica de Madrid) |
op_collection_id |
ftunivpmadrid |
language |
English |
topic |
Geología |
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Geología Letamendia Andres, Unai Navarro Valero, Francisco José Benjumea, Beatriz Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
topic_facet |
Geología |
description |
We analyze the internal structure of two polythermal glaciers, Hurd and Johnsons, located on Livingston Island, Antarctica, using 200 and 750 MHz GPR data collected in 2003/04, 2008/09 and 2016/17 field campaigns. Based on the different permittivities of snow and ice, we determined the thickness distribution of the end-of winter snow cover and of the cold ice layer. Their knowledge is fundamental for mass balance and glacier dynamics studies due to the different densities and rheological properties of such media. The average measured thicknesses for the snow and cold ice layers (the latter including the snow layer) were of 1.44 +/- 0.09 and 29.1 +/- 1.5 m, and their corresponding maxima were of 2.45 +/- 0.21 and 80.8 +/- 2.5 m. GPR snow profiling allowed for extension of the coverage of the snow thickness survey, but added little information to that supplied by snow pits, stake readings and manual snow probing, because of the multiplicity of reflections within the seasonal snowpack caused by internal ice layers and lenses. The polythermal structure determined for Hurd Glacier fits into the so-called Scandinavian type, seldom reported for the Antarctic region. |
format |
Article in Journal/Newspaper |
author |
Letamendia Andres, Unai Navarro Valero, Francisco José Benjumea, Beatriz |
author_facet |
Letamendia Andres, Unai Navarro Valero, Francisco José Benjumea, Beatriz |
author_sort |
Letamendia Andres, Unai |
title |
Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
title_short |
Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
title_full |
Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
title_fullStr |
Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
title_full_unstemmed |
Ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for Hurd-Johnsons glaciers, Livingston Island, Antarctica |
title_sort |
ground-penetrating radar as a tool for determining the interface between temperate and cold ice, and snow depth: a case study for hurd-johnsons glaciers, livingston island, antarctica |
publisher |
E.T.S.I. Telecomunicación (UPM) |
publishDate |
2023 |
url |
https://oa.upm.es/80923/ |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica Livingston Island |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica Livingston Island |
op_source |
Annals of Glaciology, ISSN 02603055, 2023-12-07 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/aog.2023.73 https://oa.upm.es/80923/ |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/aog.2023.73 |
container_title |
Annals of Glaciology |
container_start_page |
1 |
op_container_end_page |
9 |
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1797579709128638464 |