Radio Echo Sounding on a Valley Glacier in East Greenland
Abstract Although radio echo sounding equipment has been used with success for measuring the thickness of ice sheets in the Arctic and Antarctic, a valley glacier poses the additional problems of echoes from the valley walls, which may obscure the bottom echoes, and a high attenuation of radio waves...
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Cambridge University Press (CUP)
1973
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Online Access: | http://dx.doi.org/10.1017/s0022143000022723 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022723 |
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crcambridgeupr:10.1017/s0022143000022723 2024-03-03T08:37:59+00:00 Radio Echo Sounding on a Valley Glacier in East Greenland Davis, J. L. Halliday, J. S. Miller, K. J. 1973 http://dx.doi.org/10.1017/s0022143000022723 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022723 en eng Cambridge University Press (CUP) Journal of Glaciology volume 12, issue 64, page 87-91 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1973 crcambridgeupr https://doi.org/10.1017/s0022143000022723 2024-02-08T08:42:50Z Abstract Although radio echo sounding equipment has been used with success for measuring the thickness of ice sheets in the Arctic and Antarctic, a valley glacier poses the additional problems of echoes from the valley walls, which may obscure the bottom echoes, and a high attenuation of radio waves in the ice. During July and August 1970, a study was carried out on Roslin Gletscher in Stauning Alper, East Greenland, to investigate the problems of radio echo sounding on a valley glacier. Results show that reflections from the valley walls are minimized by using sufficiently directional antennae, but attenuation of the signal in the ice is higher than that in polar ice at the same temperature. Water in and on the ice probably accounts for much of the attenuation, and the use of a lower frequency or measurements before the melt commences should give improved performance. Article in Journal/Newspaper Antarc* Antarctic Arctic East Greenland glacier Greenland Journal of Glaciology Cambridge University Press Arctic Antarctic Greenland Stauning Alper ENVELOPE(-25.167,-25.167,72.000,72.000) Journal of Glaciology 12 64 87 91 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Davis, J. L. Halliday, J. S. Miller, K. J. Radio Echo Sounding on a Valley Glacier in East Greenland |
topic_facet |
Earth-Surface Processes |
description |
Abstract Although radio echo sounding equipment has been used with success for measuring the thickness of ice sheets in the Arctic and Antarctic, a valley glacier poses the additional problems of echoes from the valley walls, which may obscure the bottom echoes, and a high attenuation of radio waves in the ice. During July and August 1970, a study was carried out on Roslin Gletscher in Stauning Alper, East Greenland, to investigate the problems of radio echo sounding on a valley glacier. Results show that reflections from the valley walls are minimized by using sufficiently directional antennae, but attenuation of the signal in the ice is higher than that in polar ice at the same temperature. Water in and on the ice probably accounts for much of the attenuation, and the use of a lower frequency or measurements before the melt commences should give improved performance. |
format |
Article in Journal/Newspaper |
author |
Davis, J. L. Halliday, J. S. Miller, K. J. |
author_facet |
Davis, J. L. Halliday, J. S. Miller, K. J. |
author_sort |
Davis, J. L. |
title |
Radio Echo Sounding on a Valley Glacier in East Greenland |
title_short |
Radio Echo Sounding on a Valley Glacier in East Greenland |
title_full |
Radio Echo Sounding on a Valley Glacier in East Greenland |
title_fullStr |
Radio Echo Sounding on a Valley Glacier in East Greenland |
title_full_unstemmed |
Radio Echo Sounding on a Valley Glacier in East Greenland |
title_sort |
radio echo sounding on a valley glacier in east greenland |
publisher |
Cambridge University Press (CUP) |
publishDate |
1973 |
url |
http://dx.doi.org/10.1017/s0022143000022723 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022723 |
long_lat |
ENVELOPE(-25.167,-25.167,72.000,72.000) |
geographic |
Arctic Antarctic Greenland Stauning Alper |
geographic_facet |
Arctic Antarctic Greenland Stauning Alper |
genre |
Antarc* Antarctic Arctic East Greenland glacier Greenland Journal of Glaciology |
genre_facet |
Antarc* Antarctic Arctic East Greenland glacier Greenland Journal of Glaciology |
op_source |
Journal of Glaciology volume 12, issue 64, page 87-91 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000022723 |
container_title |
Journal of Glaciology |
container_volume |
12 |
container_issue |
64 |
container_start_page |
87 |
op_container_end_page |
91 |
_version_ |
1792503295654232064 |