The output from the NCAR Thermospheric General Circulation Model was used to simulate the time and altitude-dependent F-region ion frictional heating rate. These ion-heating profiles, computed as a functionm of UT along the locus of specific flux tubes, were used as boundary conditions in the Gombosi et al. (1985) polar wind model to simulate the plasma heating history of a flux tube traversing the cusp region. Using derived time-varying frictional heating rates such as those experienced by these flux tubes, it is shown that transverse ion heating below 500 km can provide sufficient energy to perturb the velocity distribution of the major ion species.
Modelling of time-dependent ion outflows at high geomagnetic latitudes
Advances in Space Research ; 8 , 8 19
1988-01-01
Miscellaneous
No indication
English
Modelling of time-dependention outflows at high geomagnetic latitudes
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