Ionospheric electrodynamics over Saint-Santin and Millstone Hill during 26-28 June 1984

Joseph E. Salah (1) , Marie-Louise Duboin (2) , Christine Mazaudier (2)

1 MIT Haystack Observatory
2 CRPE - Centre de recherches en physique de l'environnement terrestre et planétaire

Ion drift measurements were carried out using the incoherent scatter radars at Saint-Santin and Millstone Hill during the June 26-28, 1984 Global Thermospheric Mapping Study campaign. The electric field results from both stations for June 26 indicate a pattern characteristic of quiet geomagnetic conditions, consistent between the two stations, in contrast to the results for the geomagnetically disturbed day of June 28 which exhibit large electric fields that differ significantly at the two stations. The meridional neutral winds derived from the ion-drift component parallel to the magnetic field at the two stations under the same model assumptions agree well, and show strong southward winds at night, weaker in the daytime, and large oscillations during magnetic disturbances.

Mots clés: Electrodynamics; F Region; Incoherent Scatter Radar; Ionospheric Drift; Thermosphere; Wind Velocity

Domaines: Sciences de la Terre

Joseph E. Salah, Marie-Louise Duboin, Christine Mazaudier. Ionospheric electrodynamics over Saint-Santin and Millstone Hill during 26-28 June 1984. Annales Geophysicae, 1987, 6 (5A), pp.351-358. ⟨hal-01009286⟩