NASA Technical Reports Server (NASA) · 1981 · 29 citations · 0 references
Natural SciencesGeophysicsPhysicsAstrophysicsElectromagnetismGeomagnetismGeomagnetic Field SourcesGeomagnetic IndicesGeomagnetic ObservatoriesMagnetic AnomaliesMagnetohydrodynamicsPlanetary MagnetospheresDynamicsField ObservationsGeomagnetic Field MeasurementsMagnetic Field MeasurementsSatellite Magnetospheres