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Annals of Geophysics
. The geoelectric field drives geomagnetically induced currents (GICs) in technological conductor networks, which can affect the performance of critical ground infrastructure such as electric power transmission grids. The three-dimensional (3-D) electric
L. Juusola +4 more
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. The geoelectric field drives geomagnetically induced currents (GICs) in technological conductor networks, which can affect the performance of critical ground infrastructure such as electric power transmission grids. The three-dimensional (3-D) electric
L. Juusola +4 more
semanticscholar +1 more source
On the Geoelectric Field Response to the SSC of the May 2024 Super Storm Over Europe
Space WeatherSolar variability can lead to significant disturbances, such as coronal mass ejections (CMEs). A CME impacting the Earth's magnetosphere often causes geomagnetic storms that affect not only the magnetosphere but also the ionosphere, the upper atmosphere,
M. Piersanti +5 more
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Preliminary Study on Efficiency Evaluation of Geoelectric Field Observation
2020 2nd International Conference on Information Technology and Computer Application (ITCA), 2020Based on the overall consideration of observation environment, observation system, data quality, and forecast application, the evaluation system is preliminarily established by using AHP combined with quantitative and qualitative analysis which realizes the quantitative evaluation of geoelectric field observation efficiency.
Xiaona Dong +3 more
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IEEE Transactions on Power Delivery, 2019
Severe Geomagnetic Disturbances (GMD) pose a threat to the reliability of the United States bulk electrical power system. The NERC reliability standard TPL-007 requires transmission planners to assess potential problems in their service territories due ...
R. Sun, C. Balch
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Severe Geomagnetic Disturbances (GMD) pose a threat to the reliability of the United States bulk electrical power system. The NERC reliability standard TPL-007 requires transmission planners to assess potential problems in their service territories due ...
R. Sun, C. Balch
semanticscholar +1 more source
Study of the geoelectric fields at Vostok, Antarctica
2023In fair weather regions, a downward directed geoelectric field of ~ 100 ‚ÄövÑvÆ 200 Vm-1 can be measured at the surface of the Earth. At high latitudes, the interaction of the solar wind and interplanetary magnetic field with the Earth's magnetosphere and ionosphere imposes a variable dawn-to-dusk potential drop of 20 ‚ÄövÑvÆ 150 kV on the geoelectric ...
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Quantitative Geoelectric Mapping Of The Hydraulic Conductivity Field
14th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2001This paper describes in a stochastic framework how geoelectrics can be used to quantitatively map the hydraulic conductivity field. This is achieved by describing both a microscale and a macroscale model of aquifer electrical and hydraulic flow. The microscale model reveals that electrical and hydraulic conductivities are a function of two common ...
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Polar Cap May Have A Geoelectric Field
Physics Today, 1969During the period of high solar and geomagnetic activity in late May 1967 the Air Force satellite OV1-9 detected energetic proton fluxes coming up the magnetic field lines from the earth at high magnetic latitudes (λ⩾65–70 deg). Ludwig Katz and Paul L.
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Estimation of geoelectric field for validating geomagnetic disturbance modeling
2013 IEEE Power and Energy Conference at Illinois (PECI), 2013Geomagnetic induced currents (GICs) cause half cycle saturation of transformers and consequently increase the harmonic currents and reactive power in the grid. This paper focuses on the GIC modeling as an important geomagnetic disturbance (GMD) mitigation program.
M. Kazerooni +3 more
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Tidal wave anomalies of geoelectrical field before remote earthquakes
Acta Seismologica Sinica, 2007In this paper, geoelectrical field anomalies at Changli and Xingji station in Hebei Province were analyzed before five remote earthquakes. It was found that the anomalies mainly occurred two or three months before earthquakes, which is of importance to short-term and impendent earthquake prediction.
Xue-min Zhang +3 more
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Geoelectrical fields in a layered earth with arbitrary anisotropy
GEOPHYSICS, 1999In many cases in geoelectrical exploration, the standard model of a layered isotropic half‐space is a good approximation to geophysical reality. But sometimes it is useful to extend this model to uniform anisotropic layers. For example, in regions with distinct dipping stratification, one will try to represent this conductivity variation in the form of
Changchun Yin, Peter Weidelt
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