Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release
Through a field study in Abisko, northern Sweden, we have used the artificial avalanche release system DaisyBell together with snow profiles to study the effect of alpine birch forest on avalanche formation. Evergreen conifers have long been known to reduce avalanche formation probability, however,...
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ftngi:oai:ngi.brage.unit.no:11250/3083288 2023-09-05T13:11:04+02:00 Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release Breien, Hedda Høydal, Øyvind A. Almgren, Oscar M. 2014 application/pdf https://hdl.handle.net/11250/3083288 https://arc.lib.montana.edu/snow-science/item/2125 eng eng Montana State University Library The International Snow Science Workshop (ISSW) Proceedings; https://hdl.handle.net/11250/3083288 https://arc.lib.montana.edu/snow-science/item/2125 4 Avalanche-RnD Snøskred-FoU Conference object 2014 ftngi 2023-08-23T22:48:06Z Through a field study in Abisko, northern Sweden, we have used the artificial avalanche release system DaisyBell together with snow profiles to study the effect of alpine birch forest on avalanche formation. Evergreen conifers have long been known to reduce avalanche formation probability, however, in Scandinavia, the small birch type Alpine betula is the most common tree species in mountainous regions. Its effect on snow stability has been unknown, but of crucial importance for backcountry recreationists and for housing and mountain cabin planning. This paper presents the results from the field campaign. We show that triggering of avalanches was much more successful in open terrain than inside the birch forest. Crack propagation was significantly hindered in vicinity of trees and the snow pack layering differed to a large degree when moving few meters from inside the forest to open terrain nearby. The use of DaisyBell inside forest is novel, and experience with this practice can also be transferred to other types of demanding terrain. Conference Object Abisko Northern Sweden Norwegian Geotechnical Institute (NGI) Digital Archive Abisko ENVELOPE(18.829,18.829,68.349,68.349) |
institution |
Open Polar |
collection |
Norwegian Geotechnical Institute (NGI) Digital Archive |
op_collection_id |
ftngi |
language |
English |
topic |
Avalanche-RnD Snøskred-FoU |
spellingShingle |
Avalanche-RnD Snøskred-FoU Breien, Hedda Høydal, Øyvind A. Almgren, Oscar M. Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
topic_facet |
Avalanche-RnD Snøskred-FoU |
description |
Through a field study in Abisko, northern Sweden, we have used the artificial avalanche release system DaisyBell together with snow profiles to study the effect of alpine birch forest on avalanche formation. Evergreen conifers have long been known to reduce avalanche formation probability, however, in Scandinavia, the small birch type Alpine betula is the most common tree species in mountainous regions. Its effect on snow stability has been unknown, but of crucial importance for backcountry recreationists and for housing and mountain cabin planning. This paper presents the results from the field campaign. We show that triggering of avalanches was much more successful in open terrain than inside the birch forest. Crack propagation was significantly hindered in vicinity of trees and the snow pack layering differed to a large degree when moving few meters from inside the forest to open terrain nearby. The use of DaisyBell inside forest is novel, and experience with this practice can also be transferred to other types of demanding terrain. |
format |
Conference Object |
author |
Breien, Hedda Høydal, Øyvind A. Almgren, Oscar M. |
author_facet |
Breien, Hedda Høydal, Øyvind A. Almgren, Oscar M. |
author_sort |
Breien, Hedda |
title |
Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
title_short |
Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
title_full |
Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
title_fullStr |
Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
title_full_unstemmed |
Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release |
title_sort |
use of daisybell and snow profiles to investigate the effect of alpine birch on avalanche release |
publisher |
Montana State University Library |
publishDate |
2014 |
url |
https://hdl.handle.net/11250/3083288 https://arc.lib.montana.edu/snow-science/item/2125 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko Northern Sweden |
genre_facet |
Abisko Northern Sweden |
op_source |
4 |
op_relation |
The International Snow Science Workshop (ISSW) Proceedings; https://hdl.handle.net/11250/3083288 https://arc.lib.montana.edu/snow-science/item/2125 |
_version_ |
1776198979205201920 |