Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry
Abstract Gravity measurements at 146 stations on lower Blue Glacier were used to determine the subglacial bedrock configuration. The gravity values, station elevations and density contrast were carefully measured, and terrain corrections thoroughly evaluated to insure accuracy of the Bottguer anomal...
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Language: | English |
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Cambridge University Press (CUP)
1965
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Online Access: | http://dx.doi.org/10.1017/s0022143000018657 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000018657 |
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crcambridgeupr:10.1017/s0022143000018657 2024-03-03T08:45:59+00:00 Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry Corbató, Charles E. 1965 http://dx.doi.org/10.1017/s0022143000018657 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000018657 en eng Cambridge University Press (CUP) Journal of Glaciology volume 5, issue 41, page 637-650 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1965 crcambridgeupr https://doi.org/10.1017/s0022143000018657 2024-02-08T08:37:11Z Abstract Gravity measurements at 146 stations on lower Blue Glacier were used to determine the subglacial bedrock configuration. The gravity values, station elevations and density contrast were carefully measured, and terrain corrections thoroughly evaluated to insure accuracy of the Bottguer anomalies. A series of successive approximations results in evaluation of the regional gravity field and a three-dimensional model of the glacier whose gravimetric effects fit the range of the observational and computational errors. Comparison with bore holes and seismic reflections indicates no significant errors in the model and accuracies of 5–10 per cent in the calculated thicknesses of the glacier. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Blue Glacier ENVELOPE(164.167,164.167,-77.833,-77.833) Journal of Glaciology 5 41 637 650 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Corbató, Charles E. Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
topic_facet |
Earth-Surface Processes |
description |
Abstract Gravity measurements at 146 stations on lower Blue Glacier were used to determine the subglacial bedrock configuration. The gravity values, station elevations and density contrast were carefully measured, and terrain corrections thoroughly evaluated to insure accuracy of the Bottguer anomalies. A series of successive approximations results in evaluation of the regional gravity field and a three-dimensional model of the glacier whose gravimetric effects fit the range of the observational and computational errors. Comparison with bore holes and seismic reflections indicates no significant errors in the model and accuracies of 5–10 per cent in the calculated thicknesses of the glacier. |
format |
Article in Journal/Newspaper |
author |
Corbató, Charles E. |
author_facet |
Corbató, Charles E. |
author_sort |
Corbató, Charles E. |
title |
Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
title_short |
Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
title_full |
Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
title_fullStr |
Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
title_full_unstemmed |
Thickness and Basal Configuration of Lower Blue Glacier, Washington, Determined by Gravimetry |
title_sort |
thickness and basal configuration of lower blue glacier, washington, determined by gravimetry |
publisher |
Cambridge University Press (CUP) |
publishDate |
1965 |
url |
http://dx.doi.org/10.1017/s0022143000018657 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000018657 |
long_lat |
ENVELOPE(164.167,164.167,-77.833,-77.833) |
geographic |
Blue Glacier |
geographic_facet |
Blue Glacier |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 5, issue 41, page 637-650 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000018657 |
container_title |
Journal of Glaciology |
container_volume |
5 |
container_issue |
41 |
container_start_page |
637 |
op_container_end_page |
650 |
_version_ |
1792501750279700480 |