Fig. 5From: Linking strike directions to invariant TE and TM impedances of the magnetotelluric impedance tensorEstimation of the absolute value of shear comparing the phases \({\varnothing }_{+}\, {\mathrm{and }}\,{\varnothing }_{-}\) from the quadratic equation with \({\Phi }_{\mathrm{max}} \,{\mathrm{and}} \,{\Phi }_{\mathrm{min}}\) from the phase tensor. The optimum absolute value of shear is the average for 100 realizations of the corresponding minimaBack to article page