| タイトル | Ion-neutral momentum coupling near discrete high-latitude ionospheric features |
| 著者（英） | Schunk, R. W.; St-Maurice, J.-P. |
| 著者所属（英） | Utah State Univ. |
| 発行日 | 1981-12-01 |
| 言語 | eng |
| 内容記述 | A two-dimensional numerical model is developed to study the momentum coupling between the ionosphere and neutral atmosphere in the vicinity of discrete high-latitude features, such as convection channels and plasma density troughs. Based on generalized magnetohydrodynamic equations the model takes account of global pressure gradients, viscous dissipation, ion drag, the Coriolis force, and electrodynamic drifts. Among the findings of an initial steady state investigation are the following: (1) in convection channels, significant shears and rotations of the thermospheric flow can occur below 200 km if a minimum in the electron density profile is present between the E and F regions; (2) in convection channels, the thermospheric wind decreases with height in the F region owing to the effects of horizontal viscosity; and (3) at low altitudes, the boundaries of convection channels may produce Ekman spirals. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 82A16872 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/412744 |
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