Brief Description:
The model describes the diurnal and seasonal variation of the F-region
electric-field-induced plasma drift as measured by the St. Santin (44 N, 2 E)
incoherent scatter radar. It was established on the basis of three years
(1973-1975) of measurements during magnetically quiet periods. The ion
velocity perpendicular to the geomagnetic field is represented by a simple
harmonic function in local time with nine coefficients per season.
References:
M. Blanc and P. Amayenc, Seasonal Variations of the Ionospheric ExB Drifts
Above Saint Santin on Quiet Days, J. Geophys. Res. 84, 2691, 1979.
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NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility