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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ftdoajarticles:oai:doaj.org/article:a478df258d5c4ecf99705b4c400f98a1 2024-01-07T09:38:21+01:00 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 Unai Letamendia Francisco Navarro Beatriz Benjumea https://doi.org/10.1017/aog.2023.73 https://doaj.org/article/a478df258d5c4ecf99705b4c400f98a1 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305523000733/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2023.73 0260-3055 1727-5644 https://doaj.org/article/a478df258d5c4ecf99705b4c400f98a1 Annals of Glaciology, Pp 1-9 Ground-penetrating radar ice thickness measurements snow Meteorology. Climatology QC851-999 article ftdoajarticles https://doi.org/10.1017/aog.2023.73 2023-12-10T01:38:52Z 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 Directory of Open Access Journals: DOAJ Articles Antarctic Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Johnsons ENVELOPE(-60.350,-60.350,-62.665,-62.665) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) The Antarctic Annals of Glaciology 1 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ground-penetrating radar ice thickness measurements snow Meteorology. Climatology QC851-999 |
spellingShingle |
Ground-penetrating radar ice thickness measurements snow Meteorology. Climatology QC851-999 Unai Letamendia Francisco Navarro Beatriz Benjumea 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 |
Ground-penetrating radar ice thickness measurements snow Meteorology. Climatology QC851-999 |
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 |
Unai Letamendia Francisco Navarro Beatriz Benjumea |
author_facet |
Unai Letamendia Francisco Navarro Beatriz Benjumea |
author_sort |
Unai Letamendia |
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 |
Cambridge University Press |
url |
https://doi.org/10.1017/aog.2023.73 https://doaj.org/article/a478df258d5c4ecf99705b4c400f98a1 |
long_lat |
ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-60.350,-60.350,-62.665,-62.665) ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic Hurd Johnsons Livingston Island The Antarctic |
geographic_facet |
Antarctic Hurd Johnsons Livingston Island The Antarctic |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica Livingston Island |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica Livingston Island |
op_source |
Annals of Glaciology, Pp 1-9 |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305523000733/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2023.73 0260-3055 1727-5644 https://doaj.org/article/a478df258d5c4ecf99705b4c400f98a1 |
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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1787422590338334720 |