Delayed ionospheric effects of March 22, 1979 studied by the sixth Coordinated Data Analysis Workshop (CDAW-6)

Christine Mazaudier (1) , S.V. Venkateswaran (2)

1 CRPE - Centre de recherches en physique de l'environnement terrestre et planétaire
2 Department of Atmospheric Sciences [Los Angeles]

Saint-Santin quadristatic radar observations of E- and F-region meridional winds, E x B drifts in the F region, and height-integrated ionospheric currents are presented, along with ground magnetic variations from three equatorial stations, to indicate the nature of the global ionospheric and thermospheric perturbations that persisted on March 23, 1979 with a time delay of several hours after the magnetospheric substorm events of March 22. An attempt is made to interpret and coordinate these events qualitatively in terms of the disturbance dynamo theory of Blanc and Richmond (1980). However, a quantitative two-dimensional model of the events is singularly unsuccessful, probably because the high-latitude heat source from this storm could not be parameterized adequately as a function of the auroral activity indices.

Mots clés: Data Processing; Ionospheric Disturbances; Magnetic Storms; Atmospheric Heating; Auroras; Ionospheric Currents; Two Dimensional Models

Domaines: Sciences de la Terre

Christine Mazaudier, S.V. Venkateswaran. Delayed ionospheric effects of March 22, 1979 studied by the sixth Coordinated Data Analysis Workshop (CDAW-6). Annales Geophysicae, 1988, 8 (511), pp.1-8. ⟨hal-01009312⟩