baie (1) radar (1) région polaire (1) littérature (1) champ (1) longitude (1) sujet (1) Context (1) Complement (1) Observations (1) Observations (1) Technique (1) Will (1) Speed (1) Reproduction (1) Radar (1) Polar ionosphere (1) Nature (1) Magnetosphere (1) Magnetometers (1) Magnetohydrodynamic waves (1) Longitude (1) Literature (1) Geese (1) Magnetospheric physics (1) Technique (1) Will (1) Speed (1) Radar (1) Number (1)