Fig. 3From: Hybrid finite difference–finite element method to incorporate topography and bathymetry for two-dimensional magnetotelluric modelingThe model with setting of the FD and FE zones (left). The FE zone is set and optimized for the terrain zone (light green), whereas the FD zone is set for the simple zone without terrain. Design of the mesh of the FD and FE zones (right). Quadrilateral elements are used for the FE zone, whereas rectangular blocks are used for the FD zoneBack to article page