Articles | Volume 43, issue 1
https://doi.org/10.5194/angeo-43-271-2025
https://doi.org/10.5194/angeo-43-271-2025
Regular paper
 | 
27 May 2025
Regular paper |  | 27 May 2025

Estimation of the 3-D geoelectric field at the Earth's surface using spherical elementary current systems

Liisa Juusola, Heikki Vanhamäki, Elena Marshalko, Mikhail Kruglyakov, and Ari Viljanen

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Short summary
Interaction between the magnetic field of the rapidly varying electric currents in space and the conducting ground produces an electric field at the Earth's surface. This geoelectric field drives geomagnetically induced currents in technological conductor networks, which can affect the performance of critical ground infrastructure such as electric power transmission grids. We have developed a new method suitable for monitoring the geoelectric field based on ground magnetic field observations.
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