Coupled thermo–geophysical inversion for permafrost monitoring
This study explores an alternative way of deriving soil thermal properties from surface geophysical measurements. We combined ground surface temperature time series with time lapse geoelectrical acquisitions measured from the ground surface in a fully coupled inversion scheme to calibrate a heat con...
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2024
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00071094 2024-02-11T10:07:53+01:00 Coupled thermo–geophysical inversion for permafrost monitoring Tomaškovičová, Soňa Ingeman-Nielsen, Thomas 2024-01 electronic https://doi.org/10.5194/tc-18-321-2024 https://noa.gwlb.de/receive/cop_mods_00071094 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069404/tc-18-321-2024.pdf https://tc.copernicus.org/articles/18/321/2024/tc-18-321-2024.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-18-321-2024 https://noa.gwlb.de/receive/cop_mods_00071094 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069404/tc-18-321-2024.pdf https://tc.copernicus.org/articles/18/321/2024/tc-18-321-2024.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/tc-18-321-2024 2024-01-22T00:22:44Z This study explores an alternative way of deriving soil thermal properties from surface geophysical measurements. We combined ground surface temperature time series with time lapse geoelectrical acquisitions measured from the ground surface in a fully coupled inversion scheme to calibrate a heat conduction model. The quantitative link between the thermal and geoelectrical parts of the modeling framework is the temperature-dependent unfrozen water content, which is also the main factor influencing electrical response of the ground. The apparent resistivity data were incorporated into the coupled framework without being inverted separately, thus reducing the uncertainty inevitably associated with inverted resistivity models. We show that geoelectrical time lapse data are useful as alternative calibration data and can provide as good results as borehole temperature measurements. The fully coupled modeling framework using field data achieved performance comparable to calibration on borehole temperature records in terms of model fit within 0.6 ∘C, inversion convergence metrics, as well as the predictive performance of the calibrated model. Article in Journal/Newspaper permafrost The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 18 1 321 340 |
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article Verlagsveröffentlichung Tomaškovičová, Soňa Ingeman-Nielsen, Thomas Coupled thermo–geophysical inversion for permafrost monitoring |
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article Verlagsveröffentlichung |
description |
This study explores an alternative way of deriving soil thermal properties from surface geophysical measurements. We combined ground surface temperature time series with time lapse geoelectrical acquisitions measured from the ground surface in a fully coupled inversion scheme to calibrate a heat conduction model. The quantitative link between the thermal and geoelectrical parts of the modeling framework is the temperature-dependent unfrozen water content, which is also the main factor influencing electrical response of the ground. The apparent resistivity data were incorporated into the coupled framework without being inverted separately, thus reducing the uncertainty inevitably associated with inverted resistivity models. We show that geoelectrical time lapse data are useful as alternative calibration data and can provide as good results as borehole temperature measurements. The fully coupled modeling framework using field data achieved performance comparable to calibration on borehole temperature records in terms of model fit within 0.6 ∘C, inversion convergence metrics, as well as the predictive performance of the calibrated model. |
format |
Article in Journal/Newspaper |
author |
Tomaškovičová, Soňa Ingeman-Nielsen, Thomas |
author_facet |
Tomaškovičová, Soňa Ingeman-Nielsen, Thomas |
author_sort |
Tomaškovičová, Soňa |
title |
Coupled thermo–geophysical inversion for permafrost monitoring |
title_short |
Coupled thermo–geophysical inversion for permafrost monitoring |
title_full |
Coupled thermo–geophysical inversion for permafrost monitoring |
title_fullStr |
Coupled thermo–geophysical inversion for permafrost monitoring |
title_full_unstemmed |
Coupled thermo–geophysical inversion for permafrost monitoring |
title_sort |
coupled thermo–geophysical inversion for permafrost monitoring |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/tc-18-321-2024 https://noa.gwlb.de/receive/cop_mods_00071094 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069404/tc-18-321-2024.pdf https://tc.copernicus.org/articles/18/321/2024/tc-18-321-2024.pdf |
genre |
permafrost The Cryosphere |
genre_facet |
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-18-321-2024 https://noa.gwlb.de/receive/cop_mods_00071094 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069404/tc-18-321-2024.pdf https://tc.copernicus.org/articles/18/321/2024/tc-18-321-2024.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-18-321-2024 |
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The Cryosphere |
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18 |
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1 |
container_start_page |
321 |
op_container_end_page |
340 |
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1790606720972619776 |