Results 31 to 40 of about 1,817,388 (196)

Estimation of Geomagnetically Induced Currents in the Altai Republic Power System According to the Baygazan Magnetic Station Data

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
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

open access: yesSpace Weather, 2021
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]

open access: yesReports of the National Academy of Sciences of Ukraine
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

open access: yesJournal of Earth System Science, 2019
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
openaire   +2 more sources

REPRODUCING OPERATIONAL LANDSCAPES: The Rock Mining for Indonesia's New Capital City

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
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]

open access: yesAnnales Geophysicae, 2014
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

Electrical Resistivity Tomography for the 2D and 3D Investigation of Pingos and Permafrost Mounds in Northern Canada's Mountain and Coastland Areas

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 4, Page 804-829, October/December 2026.
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]

open access: yesAnnales Geophysicae
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

Ground Penetrating Radar Observations of Subsurface Structures From the Makgadikgadi Pans (Botswana): A Terrestrial Analogue of Martian Playa Lakes

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
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]

open access: yes, 2020
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

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