Results 101 to 110 of about 2,634 (220)
Space WeatherGeoelectric 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]
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
Analysis of Subsurface Materials Based on the Value of Medium Permeability in the Pangkep Karst Region, South Sulawesi [PDF]
, 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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Geophysical Investigation of Some Flood Prone Areas in Ota, Southwestern Nigeria [PDF]
, 2010 Thirteen shallow vertical electrical resistivity soundings using Schlumberger array were conducted within the study area. The aim of the study was to investigate the nature of the subsurface in some flood prone areas within the study area by ...
Aizebeokhai, A. P. +3 more
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Spatial Resolution Requirements for FDTD Modeling of Geoelectric Fields
Journal of Geophysical Research: Space PhysicsAbstractTo 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
Independent component analysis of geoelectric field data in the northern Nagano, Japan
Proceedings of the Japan Academy, Series B, 2009 Simultaneous anomalous change of geoelectric field was observed on January 17, 1999 at three far-distant stations in Nagano Prefecture, Japan. Eleven days after the anomalous change, an earthquake swarm with a M4.8 main shock started at a location within the triangle formed by the three stations.
Orihara, Yoshiaki +3 more
openaire +3 more sources
An Overview of Science Challenges Pertaining to our Understanding of Extreme Geomagnetically Induced Currents [PDF]
Vulnerability of man-made infrastructure to Earth-directed space weather events is a serious concern for today's technology-dependent society. Space weather-driven geomagnetically induced currents (GICs) can disrupt operation of extended electrically ...
Ngwira, Chigomezyo M. +1 more
core +1 more source
Литосфера, 2015 Additional regional electromagnetic field studies have been carried out in the northern section of the Urals. As a result of processing and interpretation of experimental materials on the basis of computational modeling of electromagnetic fields the ...
O. V. Surina, A. G. Dyakonova
doaj +2 more sources
Advances in three-dimensional geoelectric forward solver techniques [PDF]
, 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.
core
Comparison of the modelled geoelectric fields of the Carrington and Halloween storms
Journal of Space Weather and Space ClimateAn extreme geomagnetic storm comparable to the Carrington event in 1859 could have a significant impact on modern infrastructure, such as power grids. A previously published simulation by Blake et al.
Viljanen Ari +4 more
doaj +1 more source