Results 81 to 90 of about 13,838 (262)

Design of Resistivity Meter Data Storage System Based on Arduino Mega 2560 Laboratory Scale Measurement Results

Indonesian Journal of Applied Physics
A resistivity meter can find out resistivity depth of rock structure, sediment layer, or the depth of water surface. However, the resistivity meter that is often used requires manually recording of the measurement results before inputting them into the ...
Dewa Gede Eka Setiawan, Rizky Prayatman, Salmawaty Tansa   +2 more
doaj   +1 more source

Tidal influence on self-potential measurements [PDF]

, 2016
DJM was supported by NERC CASE studentship NE/I018417/1. The authors would also like to thank Southern Water for access to the borehole at Saltdean. Atkins Global and Southern Water are thanked for funding installation of the equipment and for additional
Butler, A. P., Jackson, M. D., MacAllister, D. J., Vinogradov, J.   +3 more
core   +2 more sources

Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis, E. Consolini, F. Giannattasio, G. Consolini   +3 more
wiley   +1 more source

Geotechnical profiling of a surface mine waste dump using 2D Wenner–Schlumberger configuration

Open Geosciences, 2021
Mapping the subsurface in slope stability analysis of disposal areas is difficult, especially the disposal layering materials that are assumed to be homogeneous instead of their real conditions. Moreover, the hoarding activities on high slope form layers
Supandi Supandi
doaj   +1 more source

Broadband Dielectric Analysis of Clays: Impact of Cation Exchange Capacity, Water Content, and Porosity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Clay‐rich soils and sediments are key components of near‐surface systems, influencing water retention, ion exchange, and structural stability. Their complex dielectric response under moist conditions arises from surface–ion electrostatics and diffuse double layers that govern transport and retention processes. This study explores the broadband
Felix Schmidt, Norman Wagner, Ines Mulder, Katja Emmerich, Thierry Bore, Jan Bumberger   +5 more
wiley   +1 more source

Observations of Tidal Induced Responses in Self‐Potential Data in a UK Beach Sand Aquifer: Implications for Monitoring Seawater Intrusion

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Affordable and effective early warning of saline intrusion into aquifers is a key challenge affecting coastal water supplies. This paper reports on self‐potential (SP) monitoring close to a mobile saline‐fresh water interface over a 3‐month period.
T. S. L. Rowan, A. P. Butler, M. C. McDonnell, J. F. Águila, R. Flynn, G. A. Hamill, S. Donohue, M. D. Jackson   +7 more
wiley   +1 more source

High Voltage DC Active Current Injection to Simulate Geomagnetically Induced Currents in New Zealand

Space Weather, Volume 24, Issue 3, March 2026.
Abstract This study investigates the effects of geomagnetically induced currents (GIC) on New Zealand's electrical infrastructure via an intentional ground injection of direct current (DC) from a high voltage DC converter station. GIC manifests as quasi‐DC currents within power systems, potentially causing transformer saturation, increased reactive ...
Soren Subritzky, Andrew Lapthorn, Stewart Hardie, Paul Agger, Mike Dalzell, Mark A. Clilverd, Neil Cobbett, Ciaran Beggan, Juliane Hübert, Eliot Eaton, James B. Brundell, Craig J. Rodger   +11 more
wiley   +1 more source

Nem-konvencionális geoelektromos elrendezések = Non-conventional geoelectrical arrays [PDF]

, 2009
Négy új módszert fejlesztettünk ki, vizsgáltuk azok elméleti alapjait, megteremtettük a működtetésükhöz szükséges hardveres és szoftveres hátteret és tanulmányoztuk azok terepi használhatóságát.
Novák, Attila, Szalai, Sándor, SZARKA, László Csaba, Varga, Mihály   +3 more
core  

Localization of magnetic sources underground by a data adaptive tomographic scanner

, 2005
A tomography method is proposed to image magnetic anomaly sources buried below a non-flat ground surface, by developing the expression of the total power associated with a measured magnetic field.
Mauriello, Paolo, Patella, Domenico
core   +1 more source

Comparison of Geoelectric Fields Computed by the Complex Image, Magnetotelluric, and Finite‐Difference Time‐Domain Methods

Space Weather, Volume 24, Issue 3, March 2026.
Abstract It is important to be able to accurately predict geoelectric field behavior so that potential space weather hazards to large grounded infrastructure, such as electric power grids, smart grids, oil and gas pipelines, and railway systems, can be better understood.
Prashanna S. Paneru, Darcy Cordell, Jamesina J. Simpson, Mark B. Moldwin   +3 more
wiley   +1 more source