Brief Description:
Data from the low energy electron experiment (LEE) on the AE-C and -D
satellites have been used to determine the distribution of the energy flux of
precipitating auroral electrons and their average energy for different levels
of geomagnetic activity. The study is based on 30,407 individual measurements
from January 1974 to April 1976. Tables of energy flux and characteristic
energy were produced for four ranges of auroral electrojet indices (AE). Each
table shows the variation with invariant latitude (30 bins between 50 and 88)
and magnetic local time (24 bins between 0 and 24). Empirical relationships
are used to produce similar tables for the Pedersen and Hall conductances.
Robinson et al. (1987) have pointed out errors in the calculation of
conductances in the Rice model. Improvements were suggested by Kamide et al.
(1989).
Availability: FORTRAN code may be available from the authors.
References:
R. W. Spiro, P. H. Reiff, and L. J. Maher, Precipitating Electron Energy Flux
and Auroral Zone Conductances-An Empirical Model, J. Geophys. Res. 87, 8215,
1982.
R. M. Robinson, R. R. Vondrak, K. Miller, T. Dabbs, and D. Hardy, On Calculating Ionospheric Conductances from the Flux and Energy of Precipitating Electrons, J. Geophys. Res. 92, 2566, 1987.
Y. Kamide, Y. Ishihara, T. L. Killeen, J. D. Carven, L. A. Frank, and R. A. Heelis, Combining Electric Field and Aurora Observations from DE 1 and 2 with Ground Magnetometer Records to Estimate Ionospheric Electromagnetic Quantities, J. Geophys. Res. 94, 6723, 1989.
Go to the Ionospheric Models index Go to the Model Web Models home page