Fig. 7From: Comparison of global geomagnetic field models and evaluation using marine datasets in the north-eastern Atlantic Ocean and western Mediterranean SeaComparison of intensity values of the anomaly field (ANO) estimated from HDGM2016 and EMM2015 up to SH degree 720 for the date 01/01/2015, and EMAG2v3 and WDMAM anomaly grids. Maps of differences (a–c) and radial power spectral densities (d) for the NEAWM area (grid spacing: 0.5°)Back to article page