Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions
Abstract The use of tomographic geoelectrical measurements for the detection of ground ice occurrences in mountainous regions is evaluated. Because isolated ground ice occurrences in a warming climate may be subject to rapid thawing, they present a future hazard in the context of thawing‐permafrost‐...
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crwiley:10.1002/ppp.462 2024-09-15T18:11:24+00:00 Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions Hauck, Christian Mühll, Daniel Vonder 2003 http://dx.doi.org/10.1002/ppp.462 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.462 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.462 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 14, issue 4, page 305-318 ISSN 1045-6740 1099-1530 journal-article 2003 crwiley https://doi.org/10.1002/ppp.462 2024-07-11T04:36:59Z Abstract The use of tomographic geoelectrical measurements for the detection of ground ice occurrences in mountainous regions is evaluated. Because isolated ground ice occurrences in a warming climate may be subject to rapid thawing, they present a future hazard in the context of thawing‐permafrost‐induced landslides and rockfalls. Isolated permafrost occurrences are difficult to detect with commonly used one‐dimensional sounding techniques, as plane‐layer approximations for the inversion are often invalid. Therefore, recently developed two‐dimensional tomographic inversion schemes are used to yield realistic near‐surface geological models. The method is applied to various types of permafrost occurrences in the European Alps. The influence of topography, measurement geometry and different inversion parameters are discussed. In addition, complimentary seismic survey results are used to exclude the possibility of air‐filled cavities, which exhibit similarly high resistivities as ground ice occurrences. The results show a large variety of influencing parameters which have to be considered in resistivity inversion and interpretation. Copyright © 2003 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 14 4 305 318 |
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English |
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Abstract The use of tomographic geoelectrical measurements for the detection of ground ice occurrences in mountainous regions is evaluated. Because isolated ground ice occurrences in a warming climate may be subject to rapid thawing, they present a future hazard in the context of thawing‐permafrost‐induced landslides and rockfalls. Isolated permafrost occurrences are difficult to detect with commonly used one‐dimensional sounding techniques, as plane‐layer approximations for the inversion are often invalid. Therefore, recently developed two‐dimensional tomographic inversion schemes are used to yield realistic near‐surface geological models. The method is applied to various types of permafrost occurrences in the European Alps. The influence of topography, measurement geometry and different inversion parameters are discussed. In addition, complimentary seismic survey results are used to exclude the possibility of air‐filled cavities, which exhibit similarly high resistivities as ground ice occurrences. The results show a large variety of influencing parameters which have to be considered in resistivity inversion and interpretation. Copyright © 2003 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Hauck, Christian Mühll, Daniel Vonder |
spellingShingle |
Hauck, Christian Mühll, Daniel Vonder Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
author_facet |
Hauck, Christian Mühll, Daniel Vonder |
author_sort |
Hauck, Christian |
title |
Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
title_short |
Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
title_full |
Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
title_fullStr |
Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
title_full_unstemmed |
Inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
title_sort |
inversion and interpretation of two‐dimensional geoelectrical measurements for detecting permafrost in mountainous regions |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1002/ppp.462 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.462 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.462 |
genre |
Ice permafrost Permafrost and Periglacial Processes |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 14, issue 4, page 305-318 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.462 |
container_title |
Permafrost and Periglacial Processes |
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14 |
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4 |
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305 |
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318 |
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1810448980662812672 |