Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen
This article presents the results of a geophysical survey from which detailed images of glacial and periglacial landforms and subsurface structures were obtained. Sediments and landforms on newly deglaciated terrain can be used to reconstruct the extent and character of glaciers in the past and add...
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ftunivsilesia:oai:rebus.us.edu.pl:20.500.12128/23684 2023-05-15T15:12:24+02:00 Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen Marciniak, Artur Osuch, Marzena Wawrzyniak, Tomasz Owoc, Bartosz Dobiński, Wojciech Glazer, Michał Majdański, Mariusz 2022 https://hdl.handle.net/20.500.12128/23684 https://doi.org/10.24425/ppr.2022.140363 en eng "Polish Polar Research" (2022), Vol. 43, no. 2, s.101-123 2081-8262 http://hdl.handle.net/20.500.12128/23684 doi:10.24425/ppr.2022.140363 Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ CC-BY-NC-ND Arctic Svalbard geophysical imaging periglacial environment glacial landforms info:eu-repo/semantics/article 2022 ftunivsilesia https://doi.org/20.500.12128/23684 https://doi.org/10.24425/ppr.2022.140363 2022-12-31T20:15:57Z This article presents the results of a geophysical survey from which detailed images of glacial and periglacial landforms and subsurface structures were obtained. Sediments and landforms on newly deglaciated terrain can be used to reconstruct the extent and character of glaciers in the past and add to the understanding of their response to climate and environmental changes. To derive spatial information from complex geomorphological terrain, joint interpretation of three non-intrusive geophysical methods were applied: Electrical Resistivity Tomography (ERT), Ground Penetrating Radar (GPR), and time-lapse Seismic Tomography. These were used to identify subsurface structures in the forefield of the retreating Hans Glacier in SW Spitsbergen, Svalbard. Three main zones were distinguished and described: outwash plain, terminal moraine from the last glacial maximum, and glacial forefield proximal to the glacier front. Geophysical profiles across these zones reveal information on glacio-fluvial sediment thickness and structure, ice thickness and structure, and bedrock topography. The freezing-thawing effect of the active layer has a strong and deep impact, as demonstrated by variations in P-wave velocity in the obtained outcomes. The results are discussed in the context of the current climate in Svalbard. This study provides a snapshot of ground parameters and the current state of the subsurface in southern Spitsbergen. The boundary between sediment-bedrock layers was estimated to be from 5 to 20 m in depth. It is the first such extensive description of periglacial structures in the forefield of the Hans Glacier, utilising the longest ERT profile (1500 m) in Svalbard together with deep GPR and precise seismic tomography. Article in Journal/Newspaper Arctic glacier Polar Research Svalbard Spitsbergen The Repository of the University of Silesia (RE-BUŚ) Arctic Svalbard |
institution |
Open Polar |
collection |
The Repository of the University of Silesia (RE-BUŚ) |
op_collection_id |
ftunivsilesia |
language |
English |
topic |
Arctic Svalbard geophysical imaging periglacial environment glacial landforms |
spellingShingle |
Arctic Svalbard geophysical imaging periglacial environment glacial landforms Marciniak, Artur Osuch, Marzena Wawrzyniak, Tomasz Owoc, Bartosz Dobiński, Wojciech Glazer, Michał Majdański, Mariusz Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
topic_facet |
Arctic Svalbard geophysical imaging periglacial environment glacial landforms |
description |
This article presents the results of a geophysical survey from which detailed images of glacial and periglacial landforms and subsurface structures were obtained. Sediments and landforms on newly deglaciated terrain can be used to reconstruct the extent and character of glaciers in the past and add to the understanding of their response to climate and environmental changes. To derive spatial information from complex geomorphological terrain, joint interpretation of three non-intrusive geophysical methods were applied: Electrical Resistivity Tomography (ERT), Ground Penetrating Radar (GPR), and time-lapse Seismic Tomography. These were used to identify subsurface structures in the forefield of the retreating Hans Glacier in SW Spitsbergen, Svalbard. Three main zones were distinguished and described: outwash plain, terminal moraine from the last glacial maximum, and glacial forefield proximal to the glacier front. Geophysical profiles across these zones reveal information on glacio-fluvial sediment thickness and structure, ice thickness and structure, and bedrock topography. The freezing-thawing effect of the active layer has a strong and deep impact, as demonstrated by variations in P-wave velocity in the obtained outcomes. The results are discussed in the context of the current climate in Svalbard. This study provides a snapshot of ground parameters and the current state of the subsurface in southern Spitsbergen. The boundary between sediment-bedrock layers was estimated to be from 5 to 20 m in depth. It is the first such extensive description of periglacial structures in the forefield of the Hans Glacier, utilising the longest ERT profile (1500 m) in Svalbard together with deep GPR and precise seismic tomography. |
format |
Article in Journal/Newspaper |
author |
Marciniak, Artur Osuch, Marzena Wawrzyniak, Tomasz Owoc, Bartosz Dobiński, Wojciech Glazer, Michał Majdański, Mariusz |
author_facet |
Marciniak, Artur Osuch, Marzena Wawrzyniak, Tomasz Owoc, Bartosz Dobiński, Wojciech Glazer, Michał Majdański, Mariusz |
author_sort |
Marciniak, Artur |
title |
Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
title_short |
Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
title_full |
Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
title_fullStr |
Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
title_full_unstemmed |
Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen |
title_sort |
multi-method geophysical mapping of ground properties and periglacial geomorphology in hans glacier forefield, sw spitsbergen |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.12128/23684 https://doi.org/10.24425/ppr.2022.140363 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic glacier Polar Research Svalbard Spitsbergen |
genre_facet |
Arctic glacier Polar Research Svalbard Spitsbergen |
op_relation |
"Polish Polar Research" (2022), Vol. 43, no. 2, s.101-123 2081-8262 http://hdl.handle.net/20.500.12128/23684 doi:10.24425/ppr.2022.140363 |
op_rights |
Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.12128/23684 https://doi.org/10.24425/ppr.2022.140363 |
_version_ |
1766343085679181824 |