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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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00027359 2023-05-15T16:37:07+02:00 A new model for estimating subsurface ice content based on combined electrical and seismic data sets Hauck, C. Böttcher, M. Maurer, H. 2011-06 electronic https://doi.org/10.5194/tc-5-453-2011 https://noa.gwlb.de/receive/cop_mods_00027359 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027314/tc-5-453-2011.pdf https://tc.copernicus.org/articles/5/453/2011/tc-5-453-2011.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-453-2011 https://noa.gwlb.de/receive/cop_mods_00027359 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027314/tc-5-453-2011.pdf https://tc.copernicus.org/articles/5/453/2011/tc-5-453-2011.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2011 ftnonlinearchiv https://doi.org/10.5194/tc-5-453-2011 2022-02-08T22:48:44Z 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 Murtèl rock glacier. Article in Journal/Newspaper Ice permafrost The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 5 2 453 468 |
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article Verlagsveröffentlichung Hauck, C. Böttcher, M. Maurer, H. A new model for estimating subsurface ice content based on combined electrical and seismic data sets |
topic_facet |
article Verlagsveröffentlichung |
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 Murtèl rock glacier. |
format |
Article in Journal/Newspaper |
author |
Hauck, C. Böttcher, M. Maurer, H. |
author_facet |
Hauck, C. Böttcher, M. Maurer, H. |
author_sort |
Hauck, C. |
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 |
2011 |
url |
https://doi.org/10.5194/tc-5-453-2011 https://noa.gwlb.de/receive/cop_mods_00027359 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027314/tc-5-453-2011.pdf https://tc.copernicus.org/articles/5/453/2011/tc-5-453-2011.pdf |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-453-2011 https://noa.gwlb.de/receive/cop_mods_00027359 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027314/tc-5-453-2011.pdf https://tc.copernicus.org/articles/5/453/2011/tc-5-453-2011.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-5-453-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
2 |
container_start_page |
453 |
op_container_end_page |
468 |
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1766027415687004160 |