Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation
Abstract Snow-drifts have been studied by many researchers both in field and laboratory conditions, however these investigations have been carried out mostly at wind speeds up to 20 m/s whereas in many areas of our planet snow-storms occur at winds up to 40 m/s and more. During the winter seasons of...
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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/s0022143000029464 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029464 |
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crcambridgeupr:10.1017/s0022143000029464 2024-03-03T08:46:02+00:00 Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation Dyunin, A.K. Anfilofiyev, B.A. Istrapilovich, M. G. Mamayeva, N.T. Kvon, YA. D. 1977 http://dx.doi.org/10.1017/s0022143000029464 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029464 en eng Cambridge University Press (CUP) Journal of Glaciology volume 19, issue 81, page 441-449 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1977 crcambridgeupr https://doi.org/10.1017/s0022143000029464 2024-02-08T08:38:15Z Abstract Snow-drifts have been studied by many researchers both in field and laboratory conditions, however these investigations have been carried out mostly at wind speeds up to 20 m/s whereas in many areas of our planet snow-storms occur at winds up to 40 m/s and more. During the winter seasons of 1972-76 the authors carried out a great number of experiments with an artificial snow-storm in a special wind tunnel 27 m long. The wind speeds reached 40 m/s (60-65 m/s at the 10 m anemometer height). The existing theories and hypotheses of snow-drifting, and in particular the “diffusion" model, were tested in a series of the experiments. These have not confirmed the assumption of the Australian scientists on the decisive role of diffusion in drift mechanism at large wind speeds. The problem of strong snow-storm effect on snow accumulation on avalanche-danger slopes, in particular, wind redistribution of snow is no less important. The results obtained may be used for the determination of snow accumulation in avalanche starting zones due to deflation. This is especially important for forecasting very dangerous and frequently-occurring avalanches due to snow-storms. The investigations performed enable us to estimate the snow deposition produced by strong and superstrong snow-storms, to account for the peculiarities of such snow-storms and the means of protection, to forecast snow distribution in mountainous regions, and to define the role of snow-storms in glacier mass balance. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Danger Slopes ENVELOPE(166.667,166.667,-77.817,-77.817) Journal of Glaciology 19 81 441 449 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Dyunin, A.K. Anfilofiyev, B.A. Istrapilovich, M. G. Mamayeva, N.T. Kvon, YA. D. Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
topic_facet |
Earth-Surface Processes |
description |
Abstract Snow-drifts have been studied by many researchers both in field and laboratory conditions, however these investigations have been carried out mostly at wind speeds up to 20 m/s whereas in many areas of our planet snow-storms occur at winds up to 40 m/s and more. During the winter seasons of 1972-76 the authors carried out a great number of experiments with an artificial snow-storm in a special wind tunnel 27 m long. The wind speeds reached 40 m/s (60-65 m/s at the 10 m anemometer height). The existing theories and hypotheses of snow-drifting, and in particular the “diffusion" model, were tested in a series of the experiments. These have not confirmed the assumption of the Australian scientists on the decisive role of diffusion in drift mechanism at large wind speeds. The problem of strong snow-storm effect on snow accumulation on avalanche-danger slopes, in particular, wind redistribution of snow is no less important. The results obtained may be used for the determination of snow accumulation in avalanche starting zones due to deflation. This is especially important for forecasting very dangerous and frequently-occurring avalanches due to snow-storms. The investigations performed enable us to estimate the snow deposition produced by strong and superstrong snow-storms, to account for the peculiarities of such snow-storms and the means of protection, to forecast snow distribution in mountainous regions, and to define the role of snow-storms in glacier mass balance. |
format |
Article in Journal/Newspaper |
author |
Dyunin, A.K. Anfilofiyev, B.A. Istrapilovich, M. G. Mamayeva, N.T. Kvon, YA. D. |
author_facet |
Dyunin, A.K. Anfilofiyev, B.A. Istrapilovich, M. G. Mamayeva, N.T. Kvon, YA. D. |
author_sort |
Dyunin, A.K. |
title |
Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
title_short |
Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
title_full |
Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
title_fullStr |
Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
title_full_unstemmed |
Strong Snow-Storms, their Effect on Snow Cover and Snow Accumulation |
title_sort |
strong snow-storms, their effect on snow cover and snow accumulation |
publisher |
Cambridge University Press (CUP) |
publishDate |
1977 |
url |
http://dx.doi.org/10.1017/s0022143000029464 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029464 |
long_lat |
ENVELOPE(166.667,166.667,-77.817,-77.817) |
geographic |
Danger Slopes |
geographic_facet |
Danger Slopes |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 19, issue 81, page 441-449 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000029464 |
container_title |
Journal of Glaciology |
container_volume |
19 |
container_issue |
81 |
container_start_page |
441 |
op_container_end_page |
449 |
_version_ |
1792501869967310848 |