Results 51 to 60 of about 5,330 (213)
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 +3 more
wiley +1 more source
Geomagnetically Induced Currents in the Irish Power Network during Geomagnetic Storms
, 2016 Geomagnetically induced currents (GICs) are a well-known terrestrial space weather hazard. They occur in power transmission networks and are known to have adverse effects in both high and mid-latitude countries.
Alan G. Jones (1355523) +9 more
core +2 more sources
Study on the change characteristics of regional geoelectric fields
Journal of Earth System Science, 2019 In this study, we illustrate the temporal variations of the geoelectric field and geomagnetic field by data from eight geoelectric field stations and four geomagnetic field stations in Mainland China in 2011. The maximum entropy spectral estimation method (MEM) was used to process the data in our study. The results show that: (i) it is obvious seasonal
Y Y Fan, Z H An, J J Wang, J Liu
openaire +2 more sources
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 +5 more
wiley +1 more source
Dizhen xuebao, 2023 提出长短极距比值干扰源定位方法用来定位地电观测中出现的地表干扰源。该方法基于均匀半空间模型且地表干扰为点电源，利用地表不同位置的干扰源所引起的同测向长短极距的电场变化差异，联合多测向比值来定位干扰源位置，并应用到徐庄子台漏电干扰一例和高邮台偶极源试验中。结果表明：利用长短极距比值法，能有效定位干扰点源，且能定位偶极干扰源的其中一个电极。
Jieyu Tan, Lanping Li, Junsong Sun
doaj +1 more source
Introduction to tensorial resistivity probability tomography
, 2005 The probability tomography approach developed for the scalar resistivity method is here extended to the 2D tensorial apparent resistivity acquisition mode.
Mauriello, Paolo, Patella, Domenico
core +1 more source
Groundwater Exploration in Aaba Residential Area of Akure, Nigeria [PDF]
, 2018 Groundwater plays a fundamental role in human life. Despite its indispensable characteristics, it is unfortunate that groundwater is often associated with low yield.
Adagunodo, T. A. +2 more
core +1 more source
A comparison of methods for estimating the geoelectric field [PDF]
Space Weather, 2017 AbstractThe geoelectric field is the primary input used for estimation of geomagnetically induced currents (GICs) in conducting systems. We compare three methods for estimating the geoelectric field given the measured geomagnetic field at four locations in the U.S.
openaire +1 more source
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 +7 more
wiley +1 more source
The Gannon Storm's Impact on Electric and Magnetic Fields in Italy: A Regional Perspective
Space WeatherThe intense May 2024 geomagnetic storm provided an opportunity to conduct the first analysis of geoelectric hazards in Italy. Data from three geomagnetic observatories and a magnetotelluric station were analyzed to examine the spatiotemporal evolution of
Giulia Pignatiello +5 more
doaj +1 more source