Fig. 7.From: On the possibility of extending the IGRF predictive secular variation model to a higher SH degreePer degree relative improvement of the misfit between the 2009 POMME5-post05 main field and: the 2009 extrapolation of IGRF-10 when using its own predictive secular variation (solid line); the 2009 extrapolation of IGRF-10 when using EIGRF (dashed line); when using the field provided by IGRF-10 for 2005 as a reference.Back to article page