Fig. 8From: Toward more complete magnetic gradiometry with the Swarm missionMaps of radial lithospheric field differences calculated at the Earth’s surface from coefficients of degrees \(16\le n \le 70\) between \({\mathrm {SM}}_{\mathrm {vNSEW}}\), \({\mathrm {SM}}_{{\Gamma ^{(1)}}}\), \({\mathrm {SM}}_{{\Gamma ^{(1)}}\delta }\) and MF7 (a–c) resp. CM5 (d–f)Back to article page