Fig. 3From: Applications for CryoSat-2 satellite magnetic data in studies of Earth’s core field variationsTime series of annual differences of the radial field component for GVOs derived from CryoSat-2 data calibrated using CHAOS-6-x9 (red dots) and IGRF-13 (blue dots), and relocated to a common altitude of 700 km. GVO locations are marked with a black crossBack to article page