active layer monitoring; autonomous electrical resistivity tomography; open-source data processing tool; permafrost; Active Layer; Active layer monitoring; Autonomous electrical resistivity tomography; Electrical resistivity tomography; Low-costs; Monitoring network; Open source datum; Open-source data processing tool; Processing tools; Work-flows; Geophysics; Earth and Planetary Sciences (all)
Abstract :
[en] Permafrost is a widespread phenomenon in the cold regions of the globe and is under-represented in global monitoring networks. This study presents a novel low-cost, low-power, and robust Autonomous Electrical Resistivity Tomography (A-ERT) monitoring system and open-source processing tools for permafrost monitoring. The processing workflow incorporates diagnostic and filtering tools and utilizes open-source software, ResIPy, for data inversion. The workflow facilitates quick and efficient extraction of key information from large data sets. Field experiments conducted in Antarctica demonstrated the system's capability to operate in harsh and remote environments and provided high-temporal-resolution imaging of ground freezing and thawing dynamics. This data set and processing workflow allow for a detailed investigation of how meteorological conditions impact subsurface processes. The A-ERT setup can complement existing monitoring networks on permafrost and is suitable for continuous monitoring in polar and mountainous regions, contributing to cryosphere research and gaining deeper insights into permafrost and active layer dynamics.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Farzamian, M. ; Instituto Nacional de Investigação Agrária e Veterinária, Oeiras, Portugal ; Centre for Geographical Studies, Associate Laboratory TERRA, IGOT, Universidade de Lisboa, Lisbon, Portugal
Blanchy, Guillaume ; Université de Liège - ULiège > Urban and Environmental Engineering
McLachlan, P. ; Aarhus University, Aarhus, Denmark
Vieira, G. ; Centre for Geographical Studies, Associate Laboratory TERRA, IGOT, Universidade de Lisboa, Lisbon, Portugal
Esteves, M.; Centre for Geographical Studies, Associate Laboratory TERRA, IGOT, Universidade de Lisboa, Lisbon, Portugal
de Pablo, M.A.; Universidad de Alcalá, Alcalá de Henares, Spain
Triantifilis, J.; Manaaki Whenua Landcare Research, Palmerston North, New Zealand
The research received logistical support from the Portuguese Polar Program (PROPOLAR-FCT) within the ANTERMON and PERMANTAR projects and the Spanish Polar Program within the PERMATHERMAL project. The University of Fribourg and the Centre of Geographical Studies, IGOT - University of Lisbon provided financial support to develop the A-ERT system. This work received funding from the Swiss Polar Institute (grant number TEG-2021-003) and the Fundação para a Ciência e a Tecnologia under the project THAWIMPACT (2022.06628.PTDC). We thank the Spanish Antarctic Station “Juan Carlos I,” and the BIO “Hespérides” personnel for logistical support and the continued support of the Spanish Polar Committee for the research on Livingston Island.The research received logistical support from the Portuguese Polar Program (PROPOLAR‐FCT) within the ANTERMON and PERMANTAR projects and the Spanish Polar Program within the PERMATHERMAL project. The University of Fribourg and the Centre of Geographical Studies, IGOT ‐ University of Lisbon provided financial support to develop the A‐ERT system. This work received funding from the Swiss Polar Institute (grant number TEG‐2021‐003) and the Fundação para a Ciência e a Tecnologia under the project THAWIMPACT (2022.06628.PTDC). We thank the Spanish Antarctic Station “Juan Carlos I,” and the BIO “Hespérides” personnel for logistical support and the continued support of the Spanish Polar Committee for the research on Livingston Island.
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