Finite-difference time-domain methods

FL Teixeira, C Sarris, Y Zhang, DY Na… - Nature Reviews …, 2023 - nature.com
The finite-difference time-domain (FDTD) method is a widespread numerical tool for full-
wave analysis of electromagnetic fields in complex media and for detailed geometries …

The role of global/regional earth conductivity models in natural geomagnetic hazard mitigation

A Kelbert - Surveys in Geophysics, 2020 - Springer
Geomagnetic disturbances cause perturbations in the Earth's magnetic field which, by the
principle of electromagnetic induction, in turn cause electric currents to flow in the Earth …

Geolectric field measurement, modelling and validation during geomagnetic storms in the UK

CD Beggan, GS Richardson, O Baillie… - Journal of space …, 2021 - swsc-journal.org
Significant geoelectric fields are produced by the interaction of rapidly varying magnetic
fields with the conductive Earth, particularly during intense geomagnetic activity. Though …

Distributed-source transmission line theory for modeling the coast effect on geoelectric fields

X Wang, DH Boteler, RJ Pirjola - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
Geomagnetic effects on man-made ground-based systems are an increasing concern such
as power grids, submarine cables, pipelines, and railway systems. Assessing the threat to …

Immediate and delayed responses of power lines and transformers in the Czech electric power grid to geomagnetic storms

M Švanda, D Mourenas, K Žertová… - Journal of Space …, 2020 - swsc-journal.org
Eruptive events of solar activity often trigger abrupt variations of the geomagnetic field.
Through the induction of electric currents, human infrastructures are also affected, namely …

Comparing three approaches to the inducing source setting for the ground electromagnetic field modeling due to space weather events

E Marshalko, M Kruglyakov, A Kuvshinov… - Space …, 2021 - Wiley Online Library
Ground‐based technological systems, such as power grids, can be affected by
geomagnetically induced currents (GIC) during geomagnetic storms and magnetospheric …

Exploring the influence of lateral conductivity contrasts on the storm time behavior of the ground electric field in the eastern United States

E Marshalko, M Kruglyakov, A Kuvshinov… - Space …, 2020 - Wiley Online Library
The intensification of the fluctuating geomagnetic field during space weather events leads to
generation of a strong electric field in the conducting earth, which drives geomagnetically …

Effect of the Earth's lateral conductivity variations on geomagnetically induced currents in power grids

X Wang, C Liu, Z Kang - International Journal of Electrical Power & Energy …, 2021 - Elsevier
Modeling the geomagnetically induced currents (GIC) is essential to assess the GIC risk to
power systems with geomagnetic disturbances. Lateral variations in the Earth's conductivity …

Spatial resolution requirements for FDTD modeling of geoelectric fields

P Sharma Paneru, JJ Simpson… - Journal of Geophysical …, 2024 - Wiley Online Library
To 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 …

[HTML][HTML] The geoelectric field coast effect: Results from two dimensional finite element method and analytic solutions

X Wang, S Zhang - Alexandria Engineering Journal, 2023 - Elsevier
The geoelectric fields induced during geomagnetic disturbances (GMD) may affect the
normal operation of technological systems at the Earth's surface. The non-uniform Earth …