Results 101 to 110 of about 5,330 (213)

Advances in three-dimensional geoelectric forward solver techniques [PDF]

open access: yes, 2017
Modern geoelectrical data acquisition systems allow large amounts of data to be collected in a short time. Inversions of such data sets require powerful forward solvers for predicting the electrical potentials.
Blome, M., Maurer, H. R., Schmidt, K.
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Spatial Resolution Requirements for FDTD Modeling of Geoelectric Fields

open access: yesJournal of Geophysical Research: Space Physics
AbstractTo ensure the robustness of both civilian and military infrastructure, it is important to protect electric power grids, smart grids, and other electrotechnologies from known and possibly as‐of‐yet unknown space weather hazards. Space weather can generate intense geoelectric fields at the surface of the Earth, as well as large voltage gradients ...
Prashanna Sharma Paneru   +2 more
openaire   +1 more source

Mid‐Latitude Geoelectric Field Response in North China During the May 2024 Superstorm: Effects of Geological Heterogeneity

open access: yesSpace Weather
Geoelectric field disturbances during geomagnetic storms pose growing risks to mid‐latitude power systems, yet direct observations remain limited.
Fangyuan Ma   +5 more
doaj   +1 more source

Electrodynamics of the middle atmosphere: Superpressure balloon program [PDF]

open access: yes
In this experiment a comprehensive set of electrical parameters were measured during eight long duration flights in the southern hemisphere stratosphere. These flight resulted in the largest data set ever collected from the stratosphere. The stratosphere
Holzworth, Robert H.
core   +1 more source

Poorly studied phenomena in geoelectrics

open access: yesЗаписки Горного института, 2016
Undoubtedly, modern geoelectric technologies emerge in the result of the development of traditional approaches and techniques. However of more interest is the appearance of completely new technologies based on new effects and new models of interaction of
V. S. Mogilatov
doaj   +1 more source

Extended study of extreme geoelectric field event scenarios for geomagnetically induced current applications

open access: yesSpace Weather, 2013
Geomagnetically induced currents (GIC) flowing in man‐made ground technological systems are a direct manifestation of adverse space weather. Today, there is great concern over possible geomagnetically induced current effects on power transmission ...
Chigomezyo M. Ngwira   +3 more
doaj   +1 more source

Geoelectric field and seismicity changes preceding the 2018 Mw6.8 earthquake and the subsequent activity in Greece

open access: yes, 2019
A strong earthquake of magnitude Mw6.8 struck Western Greece on 25 October 2018 with epicenter at 37.515N 20.564E. It was preceded by an anomalous geolectric signal that was recorded on 2 October 2018 at a measuring station 70km away from the epicenter ...
Sarlis, N. V.   +2 more
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Project EURISGIC : worst case scenarios (technical note D5.1) [PDF]

open access: yes, 2014
The overall objective of Work Package 5 of the EURISGIC project (see website eurisgic.eu) is defined as being: “Estimate the largest possible GIC flowing anywhere in the European high-voltage power grid, based on archive data.” This document is a ...
Baillie, O.   +4 more
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Analysis of Subsurface Materials Based on the Value of Medium Permeability in the Pangkep Karst Region, South Sulawesi [PDF]

open access: yes, 2016
This research is a field survey to reveal the characteristics of the subsurface based on the value of medium permeability Pangkep karst region. Data were collected using geoelectric resistivity Wenner configuration for subsurface characteristics with ...
Arsyad, Muhammad   +2 more
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British Geological Survey Annual Science Review 2012-13 [PDF]

open access: yes, 2013
The British Geological Survey (BGS) is part of the Natural Environment Research Council and is its principal supplier of national capability in geoscience.

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