Toward some new directions in Pc5 pulsation theory—II. Extension of the analysis to two hemispheres and determination of the model's polarization characteristics

The model of morning sector Pc5 pulsation activity developed in the companion paper is extended to account for both north and south ionospheres. The result is consistent with recent work by Allan and Knox (1979a and b). Using the spatial oscillation model proposed by McDiarmid (1979), the polarization properties of the model are determined. It is shown that when the phase of the ground induced response is taken into account, the model predicts the results observed by Lam and Rostoker (1979). Allan and Knox (1979) have also discussed the case where the wave admittance at the ionosphere equals the height integrated Pedersen conductivity (matching) and concluded that no standing wave solution exists. Here it is shown that for pulsation systems whose essential physics is described by the proposed model, the matching condition is more complicated and is, in fact, unlikely to be satisfied. Finally, it is concluded that the results obtained with our model are sufficient to warrant the development of an equivalent hydromagnetic wave model.