Results 21 to 30 of about 1,531 (194)

Geoelectric hazard assessment: the differences of geoelectric responses during magnetic storms within common physiographic zones

open access: yesEarth, Planets and Space, 2018
Geomagnetic field data obtained through the INTERMAGNET program are convolved with with magnetotelluric surface impedance from four EarthScope USArray sites to estimate the geoelectric variations throughout the duration of a magnetic storm. A duration of
Stephen W. Cuttler   +2 more
doaj   +2 more sources

Characteristics and Sources of Intense Geoelectric Fields in the United States: Comparative Analysis of Multiple Geomagnetic Storms

open access: yesSpace Weather, 2022
Intense geoelectric fields during geomagnetic storms drive geomagnetically induced currents in power grids and other infrastructure, yet there are limited direct measurements of these storm‐time geoelectric fields.
Xueling Shi   +6 more
doaj   +2 more sources

Influence of geoelectric field on chemical reactions on Earth [PDF]

open access: yesДоповiдi Нацiональної академiї наук України
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.
Igor V. Shevchenko
doaj   +3 more sources

The Effect of Tidal Geoelectric Fields on GIC and PSP in Buried Pipelines [PDF]

open access: yesIEEE Access, 2019
Compared with the investigation of geomagnetically induced currents (GIC) in power grids, there is less study about the effect of geomagnetic disturbance (GMD) on buried oil and gas pipelines in mid-low latitude areas, which includes GIC and pipe-to-soil
Lianguang Liu   +3 more
doaj   +2 more sources

Geoelectric Field Estimations During Geomagnetic Storm in North China From SinoProbe Magnetotelluric Impedances

open access: yesSpace Weather
Evaluating the impact of geomagnetic disturbances on power grid infrastructure is critical to mitigate the risk posed by geomagnetically induced currents (GICs).
Qihe Shao   +6 more
doaj   +2 more sources

Geoelectric fields and geomagnetically induced currents during the April 23–24, 2023 geomagnetic storm [PDF]

open access: yesScientific Reports
We present a study on the dynamical variations of geoelectric fields E during the intense geomagnetic storm of April 23–24, 2023. The storm is caused by the interplanetary counterpart of a coronal mass ejection erupted from the Sun in association with an
Anna Wawrzaszek   +5 more
doaj   +2 more sources

Multi‐Scale Intense Geoelectric and Geomagnetic Field Perturbations Observed After an Interplanetary Magnetic Field Turning

open access: yesSpace Weather
Intense geoelectric fields during geomagnetic storms generate geomagnetically induced currents in power grids and other infrastructure, necessitating an understanding of their causes, for example, through coordinated space and ground observations.
Xueling Shi   +8 more
doaj   +2 more sources

Data analysis before and after the transformation of Yuanmou Julin geoelectric field [PDF]

open access: yes地震科学进展
Taking the geoelectric field observation data of Yuanmou Julin of Chuxiong Earthquake Monitoring Center Station as the research object, combined with the ideas and specific contents of the two transformations since the geoelectric field observation,the ...
Xin Xiao   +4 more
doaj   +2 more sources

Comparison of the modelled geoelectric fields of the Carrington and Halloween storms

open access: yesJournal of Space Weather and Space Climate
An 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   +2 more sources

Characterizing the distribution of extreme geoelectric field events in Sweden

open access: yesJournal of Space Weather and Space Climate
Historically, Sweden has reported several impacts on transformers and transmission lines related to geomagnetically induced currents (GICs) that develop during strong space weather events. GICs are driven by the geoelectric field (E), and their intensity depends on various factors, including the lithology conductivity and the rate of change of the ...
Vanina Lanabere   +5 more
openaire   +4 more sources

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