Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling
Accurate knowledge of the ice thickness distribution and glacier bed topography is essential for predicting dynamic glacier changes and the future developments of downstream hydrology, which are impacting the energy sector, tourism industry and natural hazard management. Using AIR-ETH, a new helicop...
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International Glaciological Society
2021
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/485883 2023-05-15T16:57:29+02:00 Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling Grab, Melchior Mattea, Enrico Bauder, Andreas Huss, Matthias Rabenstein, Lasse Hodel, Elias Linsbauer, Andreas Langhammer, Lisbeth Schmid, Lino Church, Gregory James Hellmann, Sebastian Délèze, Kevin Schaer, Philipp Lathion, Patrick Farinotti, Daniel Maurer, Hansruedi 2021-12 application/application/pdf https://hdl.handle.net/20.500.11850/485883 https://doi.org/10.3929/ethz-b-000485883 en eng International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2021.55 info:eu-repo/semantics/altIdentifier/wos/000721347700010 http://hdl.handle.net/20.500.11850/485883 doi:10.3929/ethz-b-000485883 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International CC-BY Journal of Glaciology, 67 (266) Aerogeophysical measurements Glacier volume Ground-penetrating radar Ice thickness measurements Mountain glaciers info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftethz https://doi.org/20.500.11850/485883 https://doi.org/10.3929/ethz-b-000485883 https://doi.org/10.1017/jog.2021.55 2022-04-25T14:36:53Z Accurate knowledge of the ice thickness distribution and glacier bed topography is essential for predicting dynamic glacier changes and the future developments of downstream hydrology, which are impacting the energy sector, tourism industry and natural hazard management. Using AIR-ETH, a new helicopter-borne ground-penetrating radar (GPR) platform, we measured the ice thickness of all large and most medium-sized glaciers in the Swiss Alps during the years 2016–20. Most of these had either never or only partially been surveyed before. With this new dataset, 251 glaciers – making up 81% of the glacierized area – are now covered by GPR surveys. For obtaining a comprehensive estimate of the overall glacier ice volume, ice thickness distribution and glacier bed topography, we combined this large amount of data with two independent modeling algorithms. This resulted in new maps of the glacier bed topography with unprecedented accuracy. The total glacier volume in the Swiss Alps was determined to be 58.7 ± 2.5 km3 in the year 2016. By projecting these results based on mass-balance data, we estimated a total ice volume of 52.9 ± 2.7 km3 for the year 2020. Data and modeling results are accessible in the form of the SwissGlacierThickness-R2020 data package. ISSN:0022-1430 ISSN:1727-5652 Article in Journal/Newspaper Journal of Glaciology ETH Zürich Research Collection |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Aerogeophysical measurements Glacier volume Ground-penetrating radar Ice thickness measurements Mountain glaciers |
spellingShingle |
Aerogeophysical measurements Glacier volume Ground-penetrating radar Ice thickness measurements Mountain glaciers Grab, Melchior Mattea, Enrico Bauder, Andreas Huss, Matthias Rabenstein, Lasse Hodel, Elias Linsbauer, Andreas Langhammer, Lisbeth Schmid, Lino Church, Gregory James Hellmann, Sebastian Délèze, Kevin Schaer, Philipp Lathion, Patrick Farinotti, Daniel Maurer, Hansruedi Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
topic_facet |
Aerogeophysical measurements Glacier volume Ground-penetrating radar Ice thickness measurements Mountain glaciers |
description |
Accurate knowledge of the ice thickness distribution and glacier bed topography is essential for predicting dynamic glacier changes and the future developments of downstream hydrology, which are impacting the energy sector, tourism industry and natural hazard management. Using AIR-ETH, a new helicopter-borne ground-penetrating radar (GPR) platform, we measured the ice thickness of all large and most medium-sized glaciers in the Swiss Alps during the years 2016–20. Most of these had either never or only partially been surveyed before. With this new dataset, 251 glaciers – making up 81% of the glacierized area – are now covered by GPR surveys. For obtaining a comprehensive estimate of the overall glacier ice volume, ice thickness distribution and glacier bed topography, we combined this large amount of data with two independent modeling algorithms. This resulted in new maps of the glacier bed topography with unprecedented accuracy. The total glacier volume in the Swiss Alps was determined to be 58.7 ± 2.5 km3 in the year 2016. By projecting these results based on mass-balance data, we estimated a total ice volume of 52.9 ± 2.7 km3 for the year 2020. Data and modeling results are accessible in the form of the SwissGlacierThickness-R2020 data package. ISSN:0022-1430 ISSN:1727-5652 |
format |
Article in Journal/Newspaper |
author |
Grab, Melchior Mattea, Enrico Bauder, Andreas Huss, Matthias Rabenstein, Lasse Hodel, Elias Linsbauer, Andreas Langhammer, Lisbeth Schmid, Lino Church, Gregory James Hellmann, Sebastian Délèze, Kevin Schaer, Philipp Lathion, Patrick Farinotti, Daniel Maurer, Hansruedi |
author_facet |
Grab, Melchior Mattea, Enrico Bauder, Andreas Huss, Matthias Rabenstein, Lasse Hodel, Elias Linsbauer, Andreas Langhammer, Lisbeth Schmid, Lino Church, Gregory James Hellmann, Sebastian Délèze, Kevin Schaer, Philipp Lathion, Patrick Farinotti, Daniel Maurer, Hansruedi |
author_sort |
Grab, Melchior |
title |
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
title_short |
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
title_full |
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
title_fullStr |
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
title_full_unstemmed |
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
title_sort |
ice thickness distribution of all swiss glaciers based on extended ground-penetrating radar data and glaciological modeling |
publisher |
International Glaciological Society |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11850/485883 https://doi.org/10.3929/ethz-b-000485883 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, 67 (266) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2021.55 info:eu-repo/semantics/altIdentifier/wos/000721347700010 http://hdl.handle.net/20.500.11850/485883 doi:10.3929/ethz-b-000485883 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/485883 https://doi.org/10.3929/ethz-b-000485883 https://doi.org/10.1017/jog.2021.55 |
_version_ |
1766049038646378496 |