Depth-hoar growth rates near a rocky outcrop
Abstract Observations of slab-avalanche releases in alpine terrain have led to the hypothesis that rocky outcrops can influence the spatial distributions of temperature and heal flow in dry alpine snow covers and Unis control the local distribution of depth hoar. We investigate the effects of terrai...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022143000002008 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002008 |
id |
crcambridgeupr:10.1017/s0022143000002008 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0022143000002008 2024-04-28T08:26:44+00:00 Depth-hoar growth rates near a rocky outcrop Arons, E. M. Colbeck, S. C. Gray, J. M. N.T. 1998 http://dx.doi.org/10.1017/s0022143000002008 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002008 en eng Cambridge University Press (CUP) Journal of Glaciology volume 44, issue 148, page 477-484 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1998 crcambridgeupr https://doi.org/10.1017/s0022143000002008 2024-04-09T06:56:15Z Abstract Observations of slab-avalanche releases in alpine terrain have led to the hypothesis that rocky outcrops can influence the spatial distributions of temperature and heal flow in dry alpine snow covers and Unis control the local distribution of depth hoar. We investigate the effects of terrain on crystal growth by using a two-dimensional finite-clemcnl model of heal How coupled with a model of crystal growth from vapor. We used the model to examine the influence of snow properties, terrain geometry and snow depth on this phenomenon. The efleel is stronger in the early winter than in the late winter, because the rock has then had time to cool. In all cases, we found that depth-hoar growth occurs preferentially over the rock. This suggests that snow-pit investigations made over soil can he misleading if rocky outcrops are present. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 44 148 477 484 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Arons, E. M. Colbeck, S. C. Gray, J. M. N.T. Depth-hoar growth rates near a rocky outcrop |
topic_facet |
Earth-Surface Processes |
description |
Abstract Observations of slab-avalanche releases in alpine terrain have led to the hypothesis that rocky outcrops can influence the spatial distributions of temperature and heal flow in dry alpine snow covers and Unis control the local distribution of depth hoar. We investigate the effects of terrain on crystal growth by using a two-dimensional finite-clemcnl model of heal How coupled with a model of crystal growth from vapor. We used the model to examine the influence of snow properties, terrain geometry and snow depth on this phenomenon. The efleel is stronger in the early winter than in the late winter, because the rock has then had time to cool. In all cases, we found that depth-hoar growth occurs preferentially over the rock. This suggests that snow-pit investigations made over soil can he misleading if rocky outcrops are present. |
format |
Article in Journal/Newspaper |
author |
Arons, E. M. Colbeck, S. C. Gray, J. M. N.T. |
author_facet |
Arons, E. M. Colbeck, S. C. Gray, J. M. N.T. |
author_sort |
Arons, E. M. |
title |
Depth-hoar growth rates near a rocky outcrop |
title_short |
Depth-hoar growth rates near a rocky outcrop |
title_full |
Depth-hoar growth rates near a rocky outcrop |
title_fullStr |
Depth-hoar growth rates near a rocky outcrop |
title_full_unstemmed |
Depth-hoar growth rates near a rocky outcrop |
title_sort |
depth-hoar growth rates near a rocky outcrop |
publisher |
Cambridge University Press (CUP) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1017/s0022143000002008 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002008 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 44, issue 148, page 477-484 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000002008 |
container_title |
Journal of Glaciology |
container_volume |
44 |
container_issue |
148 |
container_start_page |
477 |
op_container_end_page |
484 |
_version_ |
1797585993332686848 |