An Approach to Model Earth Conductivity Structures with Lateral Changes for Calculating Induced Currents and Geoelectric Fields during Geomagnetic Disturbances

<div>Top parts of the FEM grids in the 2D model. Different colors represent different conductivity layers. The grid sizes can be varied in different layers but should be dense enough taking the frequency of the changing magnetic field and the conductivity in each layer into consideration.</div>

Mathematical Problems in Engineering

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Figure 2: An Approach to Model Earth Conductivity Structures with Lateral Changes for Calculating Induced Currents and Geoelectric Fields during Geomagnetic Disturbances 

Figure 2 | An Approach to Model Earth Conductivity Structures with Lateral Changes for Calculating Induced Currents and Geoelectric Fields during Geomagnetic Disturbances 