Results 1 to 10 of about 1,106 (161)
Space Weather, 2022 Intense geoelectric fields during geomagnetic storms drive geomagnetically induced currents in power grids and other infrastructure, yet there are limited direct measurements of these storm‐time geoelectric fields.
Xueling Shi, M D Hartinger, J B H Baker
exaly +2 more sources
Space Weather, 2022 A study is made of the relations between geomagnetic and geoelectric field variation, Earth‐surface impedance, and operational interference (“anomalies”) experienced on electric‐power systems across the contiguous United States during the 13–14 March ...
Jeffrey J Love +2 more
exaly +2 more sources
Geomatics, Natural Hazards and Risk, 2023 This paper reports three methods of researching the geoelectric index (GEI) based on the ratio between the variation amplitude of geoelectric field on an index calculation day and that on a magnetically quiet day, and uses the three methods to process ...
Junsong Sun +4 more
exaly +3 more sources
A 100‐year Geoelectric Hazard Analysis for the U.S. High‐Voltage Power Grid
Space Weather, 2020 A once‐per‐century geoelectric hazard map is created for the U.S. high‐voltage power grid. A statistical extrapolation from 31 years of magnetic field measurements is made by identifying 84 geomagnetic storms with the Kp and Dst indices.
Greg M Lucas +2 more
exaly +2 more sources
Mapping Geoelectric Field Hazards in Ireland
Space WeatherGeoelectric fields are generated at the Earth's surface and can lead to the induction of hazardous geomagnetically induced currents (GIC) in infrastructure like power grids, railways and pipelines during geomagnetic storms.
J Malone-Leigh +2 more
exaly +2 more sources
Analytic Calculation of Geoelectric Fields Due to Geomagnetic Disturbances: A Test Case
IEEE Access, 2019 Geomagnetic field variations produce geoelectric fields that can affect the operation of technological networks at the Earth's surface, including power systems, pipelines, phone cables and railway circuits.
D H Boteler, Risto J Pirjola
exaly +3 more sources
Estimating Extreme Geoelectric Field Values for the Australian Region
Space Weather, 2020 There are a number of global initiatives to understand and mitigate the impacts of extreme space weather on critical infrastructure and modern society.
R A Marshall +2 more
exaly +2 more sources
Frontiers in Earth Science, 2021 An archeological study using magnetic and ground-penetrating radar methods has been performed at the Dahshour region (Giza, Egypt), where various covered structures have not been found because of the long coercion of the zone under the military ...
A. E. El Emam +3 more
doaj +1 more source
GEOPHYSICAL SURVEY FOR GROUNDWATER IN PART OF OBIO/AKPOR LOCAL GOVERNMENT AREA OF RIVERS STATE, NIGERIA [PDF]
Geological Behavior, 2023 This research is aimed at carrying out geophysical survey for groundwater in parts of Obio/Akpo Local Government Area of Rivers State, Nigeria, using the Schlumberger electrode configuration of vertical electrical sounding (VES) technique.
Owabie, W. Highpriest, Amonieah
doaj +1 more source
Integrated Geoelectric and Hydrochemical Methods to Evaluate Groundwater Pollution in Azikoro, Yenagoa, Bayelsa State, Nigeria [PDF]
Physics Access, 2022 This paper presents an investigation on the contamination potential of ground water using integrated geoelectric and hydro chemical methods within Azikoro, Yenagoa, Bayelsa state, Nigeria.
Bunonyo T Yemanai +2 more
doaj +1 more source