Results 91 to 100 of about 2,634 (220)

Numerical Calculation of Geoelectric Fields That Affect Critical Infrastructure

International Journal of Geosciences, 2019
One of the modern applications of geomagnetism is determining the effect of geomagnetic disturbances on critical infrastructure such as power systems and pipelines. Assessing the geomagnetic hazard to such systems requires calculation of the geoelectric fields produced during geomagnetic disturbances.
David H. Boteler, Risto J. Pirjola
openaire   +2 more sources

Geomagnetic observatories: monitoring the Earth’s magnetic and space weather environment [PDF]

, 2014
Geomagnetism research provides insight into the Earth’s properties and processes, from the core out to space. For this reason continuous geomagnetic field observations have been carried out in the UK for more than 170 years. Geomagnetism also has diverse
Thomson, Alan W.P.
core   +1 more source

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

Space 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, Ying Liu, Yinhe Luo, Graham Heinson, Yixian Xu, Jinsong Du, Chao Chen   +6 more
doaj   +1 more source

Recent geomagnetic storms observed by Macau Science Satellite-1

Earth and Planetary Physics
Geomagnetic storms are rapid disturbances of the Earth’s magnetosphere. They are related to many geophysical phenomena and have large influences on human activities.
Qing Yan, HongBo Yao
doaj   +1 more source

Effects of Lateral Conductivity Variations on Geomagnetically Induced Currents: H-Polarization

IEEE Access, 2019
H-polarization, along with E-polarization, indicates the lateral variations of the Earth conductivity, which influence the induced electric field distribution.
Chunming Liu, Xuan Wang, Shuming Zhang, Chunze Xie   +3 more
doaj   +1 more source

Three-dimensional geoelectric modelling with optimal work/accuracy rate using an adaptive wavelet algorithm [PDF]

, 2017
Despite the ever-increasing power of modern computers, realistic modelling of complex 3-D earth models is still a challenging task and requires substantial computing resources.
Dahmen, W., Maurer, H. R., Plattner, A., Vorloeper, J.   +3 more
core  

Extreme Value Analysis of Induced Geoelectric Field in South Africa

Space Weather, 2017
AbstractExtreme geomagnetic disturbances occur rarely but can have great impact on technological systems such as power supply networks. Long‐term planning for extreme events requires the estimation of event impact for occurrence periods greater than the length of observed data.
S. I. Lotz, D. W. Danskin
openaire   +1 more source

A Novel Approach for Evaluating GIC Impacts in the Swedish Power Grid

Space Weather
The dynamic behavior of the Sun and its interaction with the magnetosphere and ionosphere can cause rapid variations in the geomagnetic field at ground level, geomagnetically induced currents (GICs) flowing through long grounded conductors.
L. Rosenqvist, A. Johlander, S. Molenkamp, A. P. Dimmock, J. Setréus, V. Lanabere   +5 more
doaj   +1 more source

How to detect when cells in space perceive gravity [PDF]

It is useful to be able to measure when and whether cells detect gravity during spaceflights. For studying gravitational physiology, gravity perception is the response the experimentalist needs to measure.
Bjoerkman, Thomas
core   +1 more source

The Development of Models for Assessment of the Geomagnetically Induced Currents Impact on Electric Power Grids during Geomagnetic Storms

Advances in Electrical and Computer Engineering, 2015
A model and an algorithm for the calculation of the functioning of an electric power grid of arbitrary configuration and complexity during geomagnetic storms were developed.
VAKHNINA, V. V., KUVSHINOV, A. A., SHAPOVALOV, V. A., CHERNENKO, A. N., KRETOV, D. A.   +4 more
doaj   +1 more source