A new model for estimating subsurface ice content based on combined electrical and seismic data sets
Detailed knowledge of the material properties and internal structures of frozen ground is one of the prerequisites in many permafrost studies. In the absence of direct evidence, such as in-situ borehole measurements, geophysical methods are an increasingly interesting option for obtaining subsurface...
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ftubkarlsruhe:oai:EVASTAR-Karlsruhe.de:1000039307 2023-05-15T16:37:07+02:00 A new model for estimating subsurface ice content based on combined electrical and seismic data sets Hauck, Ch. Böttcher, M. Maurer, H. 2014-03-07 application/pdf https://publikationen.bibliothek.kit.edu/1000039307 https://publikationen.bibliothek.kit.edu/1000039307/19378888 https://doi.org/10.5445/IR/1000039307 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-393070 eng eng Copernicus Publications info:eu-repo/semantics/altIdentifier/wos/000292242500012 info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-5-453-2011 info:eu-repo/semantics/altIdentifier/issn/1994-0416 https://publikationen.bibliothek.kit.edu/1000039307 https://publikationen.bibliothek.kit.edu/1000039307/19378888 https://doi.org/10.5445/IR/1000039307 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-393070 https://creativecommons.org/licenses/by/3.0/deed.de info:eu-repo/semantics/openAccess CC-BY The Cryosphere Discuss, 5, 787-821 ISSN: 1994-0416 ddc:550 Earth sciences info:eu-repo/classification/ddc/550 doc-type:article Text info:eu-repo/semantics/article article info:eu-repo/semantics/publishedVersion 2014 ftubkarlsruhe https://doi.org/10.5445/IR/1000039307 https://doi.org/10.5194/tc-5-453-2011 2022-03-23T19:03:33Z Detailed knowledge of the material properties and internal structures of frozen ground is one of the prerequisites in many permafrost studies. In the absence of direct evidence, such as in-situ borehole measurements, geophysical methods are an increasingly interesting option for obtaining subsurface information on various spatial and temporal scales. The indirect nature of geophysical soundings requires a relation between the measured variables (e.g. electrical resistivity, seismic velocity) and the actual subsurface constituents (rock, water, air, ice). In this work, we present a model which provides estimates of the volumetric fractions of these four constituents from tomographic electrical and seismic images. The model is tested using geophysical data sets from two rock glaciers in the Swiss Alps, where ground truth information in form of borehole data is available. First results confirm the applicability of the so-called 4-phase model, which allows to quantify the contributions of ice-, water- and air within permafrost areas as well as detecting solid bedrock. Apart from a similarly thick active layer with enhanced air content for both rock glaciers, the two case studies revealed a heterogeneous distribution of ice and unfrozen water within Muragl rock glacier, where bedrock was detected at depths of 20–25 m, but a comparatively homogeneous ice body with only minor heterogeneities within Murt`el rock ... Article in Journal/Newspaper Ice permafrost The Cryosphere KITopen (Karlsruhe Institute of Technologie) |
institution |
Open Polar |
collection |
KITopen (Karlsruhe Institute of Technologie) |
op_collection_id |
ftubkarlsruhe |
language |
English |
topic |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
spellingShingle |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 Hauck, Ch. Böttcher, M. Maurer, H. A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
topic_facet |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
description |
Detailed knowledge of the material properties and internal structures of frozen ground is one of the prerequisites in many permafrost studies. In the absence of direct evidence, such as in-situ borehole measurements, geophysical methods are an increasingly interesting option for obtaining subsurface information on various spatial and temporal scales. The indirect nature of geophysical soundings requires a relation between the measured variables (e.g. electrical resistivity, seismic velocity) and the actual subsurface constituents (rock, water, air, ice). In this work, we present a model which provides estimates of the volumetric fractions of these four constituents from tomographic electrical and seismic images. The model is tested using geophysical data sets from two rock glaciers in the Swiss Alps, where ground truth information in form of borehole data is available. First results confirm the applicability of the so-called 4-phase model, which allows to quantify the contributions of ice-, water- and air within permafrost areas as well as detecting solid bedrock. Apart from a similarly thick active layer with enhanced air content for both rock glaciers, the two case studies revealed a heterogeneous distribution of ice and unfrozen water within Muragl rock glacier, where bedrock was detected at depths of 20–25 m, but a comparatively homogeneous ice body with only minor heterogeneities within Murt`el rock ... |
format |
Article in Journal/Newspaper |
author |
Hauck, Ch. Böttcher, M. Maurer, H. |
author_facet |
Hauck, Ch. Böttcher, M. Maurer, H. |
author_sort |
Hauck, Ch. |
title |
A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
title_short |
A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
title_full |
A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
title_fullStr |
A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
title_full_unstemmed |
A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
title_sort |
new model for estimating subsurface ice content based on combined electrical and seismic data sets |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://publikationen.bibliothek.kit.edu/1000039307 https://publikationen.bibliothek.kit.edu/1000039307/19378888 https://doi.org/10.5445/IR/1000039307 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-393070 |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_source |
The Cryosphere Discuss, 5, 787-821 ISSN: 1994-0416 |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000292242500012 info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-5-453-2011 info:eu-repo/semantics/altIdentifier/issn/1994-0416 https://publikationen.bibliothek.kit.edu/1000039307 https://publikationen.bibliothek.kit.edu/1000039307/19378888 https://doi.org/10.5445/IR/1000039307 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-393070 |
op_rights |
https://creativecommons.org/licenses/by/3.0/deed.de info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5445/IR/1000039307 https://doi.org/10.5194/tc-5-453-2011 |
_version_ |
1766027416001576960 |