Results 171 to 180 of about 1,531 (194)
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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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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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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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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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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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Geoelectrical fields in a layered earth with arbitrary anisotropy
Geophysics, 1999Abstract In 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.
Changchun Yin, Peter Weidelt
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Interdisciplinary study of ionospheric currents and associated geoelectric fields
2023The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Egbert, G. +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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The character of the geoelectric field observed with a long electrode span
Tectonophysics, 1990Abstract Observations of the geoelectric field with a long electrode span by making use of facilities of the Nippon Telegraph and Telephone Company (NTT) have been carried out in two areas. Mito and Numazu, since 1985. Observed geoelectric variations with periods longer than several hours are more reliable, because the contact potential of electrode ...
Hiromi Takayama, Toshio Mori
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