Results 31 to 40 of about 1,817,388 (196)
A geoelectric field, voltages between grounding points of the Altai Republic power grid and geomagnetically induced currents (GIC) in power lines and grounding nodes were calculated in homogeneously conducting Earth’s crust model with the resistivity of ...
Gvozdarev, A.Yu. +3 more
doaj +1 more source
Frequency Considerations in GIC Applications
Geomagnetically induced currents (GIC) are a phenomenon well known for its negative effects on the operations of power systems. To efficiently mitigate them requires different types of power system modeling, from GIC to alternating current harmonic ...
L. Trichtchenko
doaj +1 more source
Influence of geoelectric field on chemical reactions on Earth [PDF]
The existing understanding of chemical thermodynamics presupposes that at the same temperature and other conditions being equal, the rate of a chemical reaction will always and everywhere on Earth be constant. We have found that geoelectric field generated by the Earth's ionosphere, is capable of exerting a strong influence on the rate of chemical ...
openaire +2 more sources
Study on the change characteristics of regional geoelectric fields
In this study, we illustrate the temporal variations of the geoelectric field and geomagnetic field by data from eight geoelectric field stations and four geomagnetic field stations in Mainland China in 2011. The maximum entropy spectral estimation method (MEM) was used to process the data in our study. The results show that: (i) it is obvious seasonal
Y Y Fan, Z H An, J J Wang, J Liu
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REPRODUCING OPERATIONAL LANDSCAPES: The Rock Mining for Indonesia's New Capital City
Abstract Indonesia's new capital city is designed to become a green and sustainable city. In this article, we examine the (un)sustainability of the process through which the city is coming into being. Using the sociospatial theory of planetary urbanization, we trace the dialectical relationship between the new city and sites beyond it to show how ...
Bosman Batubara +4 more
wiley +1 more source
Applying inversion techniques to derive source currents and geoelectric fields for geomagnetically induced current calculations [PDF]
This research focuses on the inversion of geomagnetic variation field measurement to obtain source currents in the ionosphere. During a geomagnetic disturbance, the ionospheric currents create magnetic field variations that induce geoelectric fields ...
J. S. de Villiers, P. J. Cilliers
doaj +1 more source
ABSTRACT Pingos and related permafrost mounds are widespread periglacial landforms in Arctic environments that are ice‐rich on the one hand and contain taliks on the other, making them vulnerable to climate change. So far, the interior, geophysical characteristics, and distribution of ground ice within these dome‐ or cone‐shaped features have not been ...
Tim Wiegand +2 more
wiley +1 more source
Benchmarking the Swedish Power Grid Against a 1-in-100-Year Geoelectric Field Scenario [PDF]
Sweden’s communication and power systems have been impacted by major space weather events in the past. For instance, the May 1921 storm caused a fire at the telegraph and telephone station in Karlstad, and the 2003 Halloween storm led to a blackout in ...
V. Lanabere +7 more
doaj +1 more source
Abstract Playa lakes are considered promising landing sites on Mars because of their strong astrobiological potential. Therefore, sediments and buried structures in terrestrial playa lakes have become the focus of numerous analogue studies. The inclusion of ground penetrating radar (GPR) in the payloads of Martian missions has opened new avenues for ...
M. Shawel +6 more
wiley +1 more source
Investigating geoelectric tides at three geomagnetic observatories in the UK [PDF]
Electric fields are generated in the Earth’s rocks and oceans by electromagnetic induction: for example through steady tidal motion of conducting sea water through the geomagnetic field or from the rapidly changing external magnetic fields in the ...
Baillie, Orsi
core +1 more source

