VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects
Abstract The effects on very low-frequency surface-impedence measurements of lateral variations commonly found in ice environments have been measured and modelled numerically using die quasi-static two-dimensional boundary-element method. Results indicate that surface-impedance measurements made in...
Published in: | Journal of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
1996
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Online Access: | http://dx.doi.org/10.1017/s0022143000030501 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030501 |
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crcambridgeupr:10.1017/s0022143000030501 2024-03-03T08:45:58+00:00 VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects Thiel, David V. James, Daniel Johnson, Peter 1996 http://dx.doi.org/10.1017/s0022143000030501 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030501 en eng Cambridge University Press (CUP) Journal of Glaciology volume 42, issue 140, page 33-36 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1996 crcambridgeupr https://doi.org/10.1017/s0022143000030501 2024-02-08T08:40:37Z Abstract The effects on very low-frequency surface-impedence measurements of lateral variations commonly found in ice environments have been measured and modelled numerically using die quasi-static two-dimensional boundary-element method. Results indicate that surface-impedance measurements made in the vicinity of crevasses oriented perpendicular to the plane Of incidence, and those made in the vicinity of moraines and melt streams, can all show significant changes to the measured apparent resistivity. It is, therefore, misleading to use such measurements in the interpretation of ice depth. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 42 140 33 36 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Thiel, David V. James, Daniel Johnson, Peter VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
topic_facet |
Earth-Surface Processes |
description |
Abstract The effects on very low-frequency surface-impedence measurements of lateral variations commonly found in ice environments have been measured and modelled numerically using die quasi-static two-dimensional boundary-element method. Results indicate that surface-impedance measurements made in the vicinity of crevasses oriented perpendicular to the plane Of incidence, and those made in the vicinity of moraines and melt streams, can all show significant changes to the measured apparent resistivity. It is, therefore, misleading to use such measurements in the interpretation of ice depth. |
format |
Article in Journal/Newspaper |
author |
Thiel, David V. James, Daniel Johnson, Peter |
author_facet |
Thiel, David V. James, Daniel Johnson, Peter |
author_sort |
Thiel, David V. |
title |
VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
title_short |
VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
title_full |
VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
title_fullStr |
VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
title_full_unstemmed |
VLF surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
title_sort |
vlf surface-impedance measurements for ice-depth mapping — an assessment of some commonly encountered interference effects |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1017/s0022143000030501 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030501 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 42, issue 140, page 33-36 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000030501 |
container_title |
Journal of Glaciology |
container_volume |
42 |
container_issue |
140 |
container_start_page |
33 |
op_container_end_page |
36 |
_version_ |
1792501718397747200 |