Fig. 10From: A candidate secular variation model for IGRF-13 based on MHD dynamo simulation and 4DEnVar data assimilationHistograms of the final distribution of ensemble members for SV (\(\dot{g}_{1}^{0}\) and \(\dot{g}_{2}^{0}\)). The black and red dashed lines denote the range of one sigma (standard deviation) and the mean of the ensemble, respectively. The red dashed means correspond to components of the final SV candidate modelBack to article page