Results 161 to 170 of about 1,817,388 (196)
Advances in Space Research, 2018 This work investigates the influence of coronal mass ejection (CME) on the time derivatives of horizontal geomagnetic and geoelectric fields, proxy parameters for identifying GICs.
O S Bolaji, B O Adebesin
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Space Weather, 2017 Geoelectric fields at the Earth's surface caused by magnetic storms constitute a hazard to the operation of electric power grids and related infrastructure.
Jeffrey J. Love +2 more
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Excitation of fields in geoelectric experiments
Izvestiya, Physics of the Solid Earth, 2007The paper discusses the premises and possibilities for expanding the experimental base of controlled-source geoelectrics. A nonstationary electric field (E-field, E-mode, and TM-field) and the means for its excitation are examined as a reserve. The appendix presents a compact description of the mathematical apparatus applicable to results of transient ...
V. S. Mogilatov, V. V. Potapov
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Spectrum characteristics of geoelectric field variation
Acta Seismologica Sinica, 2007The spectrum characteristics of geoelectric diurnal variation and geoelectric storm have been identified by maximum entropy method, based on geoelectric data from seven stations in the Chinese mainland, including Jiayuguan, Changli and Chongming. The study shows that, in geoelectric diurnal variation, the amplitude of the 12 h semidiurnal wave is the ...
Qing Ye +4 more
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The geoelectric field at Davis station, Antarctica
Journal of Atmospheric and Terrestrial Physics, 1995Abstract An electric field mill is used to measure the vertical component of the geoelectric field at Davis station, Antarctica (68.6°S, 78.0°S, geographic coordinates; 74.6°S magnetic latitude). Local influences on the measurements are determined.
G.B. Burns +4 more
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Mathematical Modeling of Some Geoelectrical Fields in Archaeological Exploration
64th EAGE Conference & Exhibition, 2002P197 MATHEMATICAL MODELING OF SOME GEOELECTRICAL FIELDS IN ARCHAEOLOGICAL EXPLORATION SUMMARY 1 The geoelectrical fields observed on rugged topography (necropolis) are considerably complicated by the effect of unevenness of the earth's surface. This effect can be eliminated in geophysical interpretation.
S. Kostyanev, V. Stoyanov, E. Atanasova
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Proceedings of the 2nd International Conference on Bioelectromagnetism (Cat. No.98TH8269), 2002
Our planet is enveloped by an electric field, which is always present, but varies in magnitude. Even though this has been known for several decades, very little attention is being given to this phenomenon. This global electric field is still not fully understood and provides more questions than answers.
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Our planet is enveloped by an electric field, which is always present, but varies in magnitude. Even though this has been known for several decades, very little attention is being given to this phenomenon. This global electric field is still not fully understood and provides more questions than answers.
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Geoelectric Field Estimation during Geomagnetic Disturbances
2019 IEEE Power & Energy Society General Meeting (PESGM), 2019Geomagnetic disturbances (GMD) occur due to the increase of solar activities, which leads to the variation of earth magnetic field. The variation of magnetic field affects power systems in the form of geomagnetically induced current (GIC), which refers to the quasi DC current flow through transmission lines and transformer windings.
Jiahao Xie +4 more
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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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Numerical analysis of geoelectric fields in a medium with faults
Computational Mathematics and Modeling, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barashkov, A. S., Dmitriev, V. I.
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