The mineral resources exploration industry continuously expands the efficiency requirements for geophysical technologies. Due to their relatively inexpensive nature, coupled with ability rapidly acquire data over large areas, airborne electromagnetic technologies have been used decades in subsurface exploration. Limitations on depth of investigation platforms controlled primary field sources is...

The interpretation of the deep three-dimensional geoelectricalal model central part Zvizdal-Zaliska and Brusyliv fault zones Ukrainian shield, which was built with involvement data from experimental observations Earth's low-frequency electromagnetic field conducted in 2019 by Institute Geophysics named after S.I. Subotin National Academy Sciences Ukraine, within Ordyntsi-Lobachiv Zoziv-Stryzhav...

Abstract Groundwater exploration is an alternative to meet raw water needs because of the increasing demand and dwindling surface availability. Water use continues increase along with rate population growth in Rote Ndao Regency. Therefore, initial assessment presence groundwater can be carried out by identifying basin area. Batutua one areas occupied most it capital This study aims identify aqu...

We used a four-point resistivity method to detect wood decay in living trees. A low-frequency alternating current was applied to the stem and the induced voltage measured between two points along the stem. The effective resistivity of the stem was estimated based on stem cross-sectional area. A comparison within a group of trees showed that trees with butt rot had an effective resistivity that ...

generally, the measured secondary field data is inverted into resistivity using two principal models; the homogeneous half-space model and the layered half-space model. while the homogeneous half-space inversion uses single frequency data, the inversion is done individually for each of the frequencies used, the multi-layer 1d inversion is able to take the data of all frequencies available into ...

In this study we describe and compare photometric and resistivity measurement methodologies to determine solute concentrations in porous media flow tank experiments. The first method is the photometric method, which directly relates digitally measured intensities of a tracer dye to concentrations without previously converting 5 the intensities to optical densities. This enables an effective pro...

Saudi Arabia is seeking fresh groundwater resources to face the increase in anthropogenic activities. The storage variations and occurrence were investigated surface subsurface structures influencing research area defined using a combined study of Gravity Recovery Climate Experiment, aeromagnetic data, electrical resistivity data with other relevant datasets. Results are: fluctuation calculated...

The smoothness-constrained least-squares method is widely used for two-dimensional (2D) and three-dimensional (3D) inversion of apparent resistivity data sets. The Gauss–Newton method that recalculates the Jacobian matrix of partial derivatives for all iterations is commonly used to solve the least-squares equation. The quasi-Newton method has also been used to reduce the computer time. In this...

Dual-domain models are used to explain anomalous solute transport behavior observed in diverse hydrologic settings and applications, from groundwater remediation to hyporheic exchange. To constrain such models, new methods are needed with sensitivity to both immobile and mobile domains. Recent experiments indicate that dual-domain transport of ionic tracers has an observable geoelectrical signa...

The article presents the original results of investigation sulfide-bearing mine tailings dumps (Ursk, Western Siberia, Russia), adjacent territory, and acid drainage flows. novelty this study is related to integration geophysical geochemical data. geoelectrical structure dump valley was determined using electrical resistivity tomography (ERT) method. Magnetic anomalies above surface site were i...