Fig. 6From: Dynamic responses of the Earth’s outer core to assimilation of observed geomagnetic secular variationThe \(({\mathcal {M}}\text {-}{\mathcal {F}})\) of the poloidal velocity field v r′ as defined in (44). The dashed lines are the results without SV assimilation (case II) and the solid lines are those with the SV assimilation (case III)Back to article page