Short Notes: On Depth Hoar and the Strength of Snow
Abstract It has long been known that a temperature gradient in the snowpack, when temperatures are less than 0°C, can metamorphose the snow to produce a fragile euhedral crystalline end product called “depth hoar" which is considered to be responsible for snowpack collapse and climax avalanches...
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Language: | English |
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Cambridge University Press (CUP)
1977
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Online Access: | http://dx.doi.org/10.1017/s0022143000021602 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000021602 |
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crcambridgeupr:10.1017/s0022143000021602 2024-03-03T08:46:08+00:00 Short Notes: On Depth Hoar and the Strength of Snow Bradley, C.C. Brown, R.L Williams, T. 1977 http://dx.doi.org/10.1017/s0022143000021602 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000021602 en eng Cambridge University Press (CUP) Journal of Glaciology volume 18, issue 78, page 145-147 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1977 crcambridgeupr https://doi.org/10.1017/s0022143000021602 2024-02-08T08:36:10Z Abstract It has long been known that a temperature gradient in the snowpack, when temperatures are less than 0°C, can metamorphose the snow to produce a fragile euhedral crystalline end product called “depth hoar" which is considered to be responsible for snowpack collapse and climax avalanches. The wave of metamorphism advancing through anhedral snow converts it, first to subhedral, and finally to euhedral depth hoar. Our field observations, which are at the moment supported by laboratory evidence, reveal that the zone of minimum snow strength in the gradient metamorphic layer is associated with the intermediate subhedral phase rather than with the euhedral end product. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 18 78 145 147 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Bradley, C.C. Brown, R.L Williams, T. Short Notes: On Depth Hoar and the Strength of Snow |
topic_facet |
Earth-Surface Processes |
description |
Abstract It has long been known that a temperature gradient in the snowpack, when temperatures are less than 0°C, can metamorphose the snow to produce a fragile euhedral crystalline end product called “depth hoar" which is considered to be responsible for snowpack collapse and climax avalanches. The wave of metamorphism advancing through anhedral snow converts it, first to subhedral, and finally to euhedral depth hoar. Our field observations, which are at the moment supported by laboratory evidence, reveal that the zone of minimum snow strength in the gradient metamorphic layer is associated with the intermediate subhedral phase rather than with the euhedral end product. |
format |
Article in Journal/Newspaper |
author |
Bradley, C.C. Brown, R.L Williams, T. |
author_facet |
Bradley, C.C. Brown, R.L Williams, T. |
author_sort |
Bradley, C.C. |
title |
Short Notes: On Depth Hoar and the Strength of Snow |
title_short |
Short Notes: On Depth Hoar and the Strength of Snow |
title_full |
Short Notes: On Depth Hoar and the Strength of Snow |
title_fullStr |
Short Notes: On Depth Hoar and the Strength of Snow |
title_full_unstemmed |
Short Notes: On Depth Hoar and the Strength of Snow |
title_sort |
short notes: on depth hoar and the strength of snow |
publisher |
Cambridge University Press (CUP) |
publishDate |
1977 |
url |
http://dx.doi.org/10.1017/s0022143000021602 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000021602 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 18, issue 78, page 145-147 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000021602 |
container_title |
Journal of Glaciology |
container_volume |
18 |
container_issue |
78 |
container_start_page |
145 |
op_container_end_page |
147 |
_version_ |
1792502053959892992 |