Errors in Ablation Measurements from Settlement and Sub-Surface Melting
Abstract Both long and short-term snow ablation measurements usually contain errors when made with a simple ablation stake. Ablations measured over long periods for glacier regimen studies are subject to a settlement error in even dense snow, corrections for which may be made by simultaneous measure...
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Language: | English |
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Cambridge University Press (CUP)
1959
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Online Access: | http://dx.doi.org/10.1017/s0022143000017202 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017202 |
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crcambridgeupr:10.1017/s0022143000017202 2024-03-03T08:45:58+00:00 Errors in Ablation Measurements from Settlement and Sub-Surface Melting LaChapelle, E. 1959 http://dx.doi.org/10.1017/s0022143000017202 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017202 en eng Cambridge University Press (CUP) Journal of Glaciology volume 3, issue 26, page 458-467 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1959 crcambridgeupr https://doi.org/10.1017/s0022143000017202 2024-02-08T08:36:10Z Abstract Both long and short-term snow ablation measurements usually contain errors when made with a simple ablation stake. Ablations measured over long periods for glacier regimen studies are subject to a settlement error in even dense snow, corrections for which may be made by simultaneous measurements with stakes of different lengths. For observation periods in the order of twenty-four hours or less, both mass loss and ice melt are often poorly represented by the simple product of mean bulk density and change in surface level. These quantities may be measured directly by successive determinations of bulk density and ice density profiles in the surface snow layer. Under certain favorable conditions, they may also be derived by observing directly the total and ice mass changes in a sampled area of the snow surface. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 3 26 458 467 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes LaChapelle, E. Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
topic_facet |
Earth-Surface Processes |
description |
Abstract Both long and short-term snow ablation measurements usually contain errors when made with a simple ablation stake. Ablations measured over long periods for glacier regimen studies are subject to a settlement error in even dense snow, corrections for which may be made by simultaneous measurements with stakes of different lengths. For observation periods in the order of twenty-four hours or less, both mass loss and ice melt are often poorly represented by the simple product of mean bulk density and change in surface level. These quantities may be measured directly by successive determinations of bulk density and ice density profiles in the surface snow layer. Under certain favorable conditions, they may also be derived by observing directly the total and ice mass changes in a sampled area of the snow surface. |
format |
Article in Journal/Newspaper |
author |
LaChapelle, E. |
author_facet |
LaChapelle, E. |
author_sort |
LaChapelle, E. |
title |
Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
title_short |
Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
title_full |
Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
title_fullStr |
Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
title_full_unstemmed |
Errors in Ablation Measurements from Settlement and Sub-Surface Melting |
title_sort |
errors in ablation measurements from settlement and sub-surface melting |
publisher |
Cambridge University Press (CUP) |
publishDate |
1959 |
url |
http://dx.doi.org/10.1017/s0022143000017202 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017202 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 3, issue 26, page 458-467 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000017202 |
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Journal of Glaciology |
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3 |
container_issue |
26 |
container_start_page |
458 |
op_container_end_page |
467 |
_version_ |
1792501711498117120 |