Fig. 5From: Comparison of global geomagnetic field models and evaluation using marine datasets in the north-eastern Atlantic Ocean and western Mediterranean SeaMaps of differences in declination values estimated from HDGM2016core (a), WMM2015 (b), HDGM2016 (c) and IGRF-12 (reference) models at a global scale reduced by 30° in latitude and 20° in longitude (left, grid spacing: 1°) and for the NEAWM area (right, grid spacing: 0.5°)Back to article page