Figure 2From: International Geomagnetic Reference Field: the 12th generationMaps of the predicted rate of change per year in the declination D (top, units are degrees/year), the inclination I (middle, units are degrees/year), and total intensity F (bottom, units are nT/year) at the Earth’s mean radius r=a for the interval 2015.0 to 2020.0. Projection is Mercator.Back to article page