Latitudinal profile of the magnetospheric convection electric field at ionospheric altitudes from a chain of magnetic and radar data

Christine Mazaudier (1) , M. Blanc (1) , E. Nielsen (2) , Min-Yun Zi (2, 3)

1 CNET - Centre national d'études des télécommunications
2 MPI Aeronomie - Max-Planck-Institut für Aeronomie
3 Geophysical Department

In this paper a combination of magnetic records with coherent and incoherent radar data at aurorai and middle latitudes (STARE and Saint-Santin) allows a quantitative analysis of the latitudinal profile of the convection electric field. This latitudinal profile is compared with the predictions of the semi-analytical convection model of Senior and Blanc. The aurorai conductivities used in this model are deduced from comparison of the STARE electric field and the magnetic disturbance. Once this normalization is performed, a good agreement is found between the experimental and theoretical electric field profiles.

Domaines: Climatologie; Milieux et Changements globaux

Christine Mazaudier, M. Blanc, E. Nielsen, Min-Yun Zi. Latitudinal profile of the magnetospheric convection electric field at ionospheric altitudes from a chain of magnetic and radar data. Journal of Geophysical Research, 1984, 89 (A1), pp.375-381. ⟨10.1029/JA089iA01p00375⟩. ⟨hal-00994873⟩