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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

This study utilized electrical resistivity imaging (ERI) to investigate subsurface characteristics near Nicolaus Copernicus University Polar Station on the western Spitsbergen-Kaffiøyra Plain island in the Svalbard archipelago. Surveys along two lines, LN (148 m) collected in 2022 and 2023, and ST (40 m) collected in 2023, were conducted to assess resistivity and its correlation with ground temperatures. The LN line revealed a 1- to 2-m-thick resistive unsaturated outwash sediment layer, potentially indicative of permafrost. Comparing the LN resistivity result between 2022 and 2023, a 600 Ohm.m decrease in the unsaturated active layer in 2023 was observed, attributed to a 5.8 °C temperature increase, suggesting a link to global warming. ERI along the ST line depicted resistivity, reaching its minimum at approximately 1.6 m, rising to over 200 Ohm.m at 4 m, and slightly decreasing to around 150 Ohm.m at 7 m. Temperature measurements from the ST line’s monitoring strongly confirmed that the active layer extends to around 1.6 m, with permafrost located at greater depths. Additionally, water content distribution in the ST line was estimated after temperature correction, revealing a groundwater depth of approximately 1.06 m, consistent with measurements from the S4 borehole on the ST line. This study provides valuable insights into Arctic subsurface dynamics, emphasizing the sensitivity of resistivity patterns to climate change and offering a comprehensive understanding of permafrost behavior in the region.

Details

Title
Investigating Arctic Permafrost Dynamics Using Electrical Resistivity Imaging and Borehole Measurement in Svalbard
Author
Ding-Jiun Lin 1   VIAFID ORCID Logo  ; Ping-Yu, Chang 2 ; Chen, Ying-Lon 1 ; Puntu, Jordi Mahardika 1   VIAFID ORCID Logo  ; Chuen-Fa Ni 3   VIAFID ORCID Logo  ; Giletycz, Slawomir Jack 4 ; Sobota, Ireneusz 5   VIAFID ORCID Logo  ; Czarnecki, Kamil 5   VIAFID ORCID Logo  ; Yu-Huan, Chang 6   VIAFID ORCID Logo 

 Department of Earth Sciences, National Central University, Taoyuan 330, Taiwan; [email protected] (D.-J.L.); 
 Department of Earth Sciences, National Central University, Taoyuan 330, Taiwan; [email protected] (D.-J.L.); ; Earthquake Disaster & Risk Evaluation and Management Center (E-DREaM), National Central University, Taoyuan 330, Taiwan 
 Department of Earth Sciences, National Central University, Taoyuan 330, Taiwan; [email protected] (D.-J.L.); ; Taiwan Polar Institute, National Central University, Taoyuan 330, Taiwan; Graduate Institute of Applied Geology, National Central University, Taoyuan 330, Taiwan 
 Department of Earth Sciences, National Central University, Taoyuan 330, Taiwan; [email protected] (D.-J.L.); ; Taiwan Polar Institute, National Central University, Taoyuan 330, Taiwan 
 Department of Hydrology, Cryology and Water Management, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland 
 Graduate Institute of Applied Geology, National Central University, Taoyuan 330, Taiwan 
First page
2707
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
20734441
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3116679376
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.