Fig. 8From: Modelling of electromagnetic signatures of global ocean circulation: physical approximations and numerical issuesEffect of galvanic coupling (Case B) and vertical stratification (Case C) on the OIMF at the Earth’s surface The top row shows the differences [nT] between Cases B and A in the X, Y, and Z components of the ocean-induced magnetic fields computed using the ElmgTD solver. The bottom row shows the differences between the OIMFs in Cases C and BBack to article page