Results 121 to 130 of about 3,945 (238)

Challenges in the Detection of Water-Filled Cavities in Karst Environments Using Electrical Resistivity Tomography

Geosciences
Electrical resistivity tomography (ERT) is one of the most commonly used geophysical methods for imaging the distribution of electrical resistivity in the subsurface. It is often employed to characterise heterogeneity in karst regions and locate cavities
Sergio Negri, Dora Francesca Barbolla
doaj   +1 more source

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 473-497, July/September 2026.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 517-534, July/September 2026.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca, Ramón Pellitero, Adriano Ribolini, José Úbeda, Luis Mariano del Río, Ricardo Vila, Oscar Vilca   +6 more
wiley   +1 more source

Investigating Fault Structure Using Electrical Resistivity Tomography

, 2013
The resolving power of two-dimensional Direct Current (DC) Electrical Resistivity Tomography (ERT) is investigated in the context of shallow faults. Subsurface electrical resistivity data was collected perpendicular to a secondary fault scarp of the Los ...
Monahan, Sara Michelle
core   +1 more source

InSAR Evidence of Small‐Scale Faults Activated During Rift Zone Intrusions at Piton de la Fournaise Volcano

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Volcanic edifices show complex internal structures including discontinuities at different scales. These discontinuities can act as zones of weakness and are closely linked to volcanic activity distribution and associated hazards, making their detection and monitoring essential. In this study we investigate the presence of small‐scale faults on
Quentin Dumont, Jean‐Luc Froger, Lydie Gailler, Anthony Finizola, Stéphanie Barde‐Cabusson   +4 more
wiley   +1 more source

Application of electrical resistivity tomography in assessing complex soil conditions

, 2015
Appropriate assessment of spatial variation of soil and hydrogeological conditions is a crucial issue in recognizing foundation soil. The best methods to achieve this goal are those that supply continuous rather than scattered data on soil medium ...
Mieszkowski, R., Zawrzykraj, P., Kowalczyk, S.   +2 more
core   +1 more source

Groundwater redox conditions and conductivity in a contaminant plume from geoelectrical investigations [PDF]

Hydrology and Earth System Sciences, 2004
Accurate mapping of the electrical conductivity and of the redox potential of the groundwater is important in delineating the shape of a contaminant plume.
V. Naudet, V. Naudet, A. Revil, A. Revil, E. Rizzo, E. Rizzo, J.-Y. Bottero, J.-Y. Bottero, P. Bégassat, P. Bégassat   +9 more
doaj  

Comparison of Electromagnetic Induction and Electrical Resistivity Tomography in Assessing Soil Salinity: Insights from Four Plots with Distinct Soil Salinity Levels

Land
Electromagnetic induction (EMI) and electrical resistivity tomography (ERT) are geophysical techniques measuring soil electrical conductivity and providing insights into properties correlated with it to depths of several meters. EMI measures the apparent
Maria Catarina Paz, Nádia Luísa Castanheira, Ana Marta Paz, Maria Conceição Gonçalves, Fernando Monteiro Santos, Mohammad Farzamian   +5 more
doaj   +1 more source

Electrical resistivity tomography investigations on a paleoseismological trenching study

, 2014
Two-dimensional electrical resistivity tomography (ERT) investigation was performed in a paleoseismological trenching study. Data acquisition strategies such as the selection of electrode configuration and electrode intervals of ERT application were ...
BERGE, MERİÇ AZİZ
core   +1 more source

Investigating the relationship between resistivity tomography and methane emissions in a controlled dumpsite: A comprehensive study of resistivity profiles

Results in Engineering
Controlled dumping––a widespread practice in developing countries––inadequately manages emissions of methane (CH4), a greenhouse gas (GHG) that contributes significantly to global warming.
Pornchanok Boonsakul, Desell Suanburi, Sirintornthep Towprayoon, Chart Chiemchaisri, Tomonori Ishigaki, Yugo Isobe, Komsilp Wangyao   +6 more
doaj   +1 more source