A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations
Wind-driven snow redistribution affects the glacier mass balance by eroding or depositing mass from or to different parts of the glacier’s surface. High-resolution observations are used to test the ability of large-eddy simulations as a tool for distributed mass balance modeling. We present a case s...
Published in: | The Cryosphere |
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Copernicus Publications
2024
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00071917 2024-04-14T08:20:23+00:00 A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations Voordendag, Annelies Goger, Brigitta Prinz, Rainer Sauter, Tobias Mölg, Thomas Saigger, Manuel Kaser, Georg 2024-02 electronic https://doi.org/10.5194/tc-18-849-2024 https://noa.gwlb.de/receive/cop_mods_00071917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070160/tc-18-849-2024.pdf https://tc.copernicus.org/articles/18/849/2024/tc-18-849-2024.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-18-849-2024 https://noa.gwlb.de/receive/cop_mods_00071917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070160/tc-18-849-2024.pdf https://tc.copernicus.org/articles/18/849/2024/tc-18-849-2024.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/tc-18-849-2024 2024-03-19T12:18:16Z Wind-driven snow redistribution affects the glacier mass balance by eroding or depositing mass from or to different parts of the glacier’s surface. High-resolution observations are used to test the ability of large-eddy simulations as a tool for distributed mass balance modeling. We present a case study of observed and simulated snow redistribution over Hintereisferner glacier (Ötztal Alps, Austria) between 6 and 9 February 2021. Observations consist of three high-resolution digital elevation models (Δx=1 m) derived from terrestrial laser scans taken shortly before, directly after, and 15 h after snowfall. The scans are complemented by datasets from three on-site weather stations. After the snowfall event, we observed a snowpack decrease of 0.08 m on average over the glacier. The decrease in the snow depth can be attributed to post-snowfall compaction and the wind-driven redistribution of snow. Simulations were performed with the Weather Research and Forecasting (WRF) model at Δx=48 m with a newly implemented snow drift module. The spatial patterns of the simulated snow redistribution agree well with the observed generalized patterns. Snow redistribution contributed −0.026 m to the surface elevation decrease over the glacier surface on 8 February, resulting in a mass loss of −3.9 kg m−2, which is on the same order of magnitude as the observations. With the single case study we cannot yet extrapolate the impact of post-snowfall events on the seasonal glacier mass balance, but the study shows that the snow drift module in WRF is a powerful tool to improve knowledge on wind-driven snow redistribution patterns over glaciers. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 18 2 849 868 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Voordendag, Annelies Goger, Brigitta Prinz, Rainer Sauter, Tobias Mölg, Thomas Saigger, Manuel Kaser, Georg A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
topic_facet |
article Verlagsveröffentlichung |
description |
Wind-driven snow redistribution affects the glacier mass balance by eroding or depositing mass from or to different parts of the glacier’s surface. High-resolution observations are used to test the ability of large-eddy simulations as a tool for distributed mass balance modeling. We present a case study of observed and simulated snow redistribution over Hintereisferner glacier (Ötztal Alps, Austria) between 6 and 9 February 2021. Observations consist of three high-resolution digital elevation models (Δx=1 m) derived from terrestrial laser scans taken shortly before, directly after, and 15 h after snowfall. The scans are complemented by datasets from three on-site weather stations. After the snowfall event, we observed a snowpack decrease of 0.08 m on average over the glacier. The decrease in the snow depth can be attributed to post-snowfall compaction and the wind-driven redistribution of snow. Simulations were performed with the Weather Research and Forecasting (WRF) model at Δx=48 m with a newly implemented snow drift module. The spatial patterns of the simulated snow redistribution agree well with the observed generalized patterns. Snow redistribution contributed −0.026 m to the surface elevation decrease over the glacier surface on 8 February, resulting in a mass loss of −3.9 kg m−2, which is on the same order of magnitude as the observations. With the single case study we cannot yet extrapolate the impact of post-snowfall events on the seasonal glacier mass balance, but the study shows that the snow drift module in WRF is a powerful tool to improve knowledge on wind-driven snow redistribution patterns over glaciers. |
format |
Article in Journal/Newspaper |
author |
Voordendag, Annelies Goger, Brigitta Prinz, Rainer Sauter, Tobias Mölg, Thomas Saigger, Manuel Kaser, Georg |
author_facet |
Voordendag, Annelies Goger, Brigitta Prinz, Rainer Sauter, Tobias Mölg, Thomas Saigger, Manuel Kaser, Georg |
author_sort |
Voordendag, Annelies |
title |
A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
title_short |
A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
title_full |
A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
title_fullStr |
A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
title_full_unstemmed |
A novel framework to investigate wind-driven snow redistribution over an Alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
title_sort |
novel framework to investigate wind-driven snow redistribution over an alpine glacier: combination of high-resolution terrestrial laser scans and large-eddy simulations |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/tc-18-849-2024 https://noa.gwlb.de/receive/cop_mods_00071917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070160/tc-18-849-2024.pdf https://tc.copernicus.org/articles/18/849/2024/tc-18-849-2024.pdf |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-18-849-2024 https://noa.gwlb.de/receive/cop_mods_00071917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070160/tc-18-849-2024.pdf https://tc.copernicus.org/articles/18/849/2024/tc-18-849-2024.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-18-849-2024 |
container_title |
The Cryosphere |
container_volume |
18 |
container_issue |
2 |
container_start_page |
849 |
op_container_end_page |
868 |
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1796298658572926976 |