Автор |
Perkins, F. W. |
Автор |
Zabusky, N. J. |
Автор |
Doles, J. H. |
Дата выпуска |
1973 |
dc.description |
We derive the equations that govern the nonlinear motion of plasma clouds in the ionosphere, including the effects of finite temperature and resistivity along the magnetic field lines. The principal application is to large barium clouds, which contain enough plasma to dominate the integrated Pedersen conductivity on lines of force that pass through the cloud and are sufficiently high so that Ω<sub>i</sub>/ν<sub>in</sub> ≫ 1. Approximate solutions to the nonlinear equations in simplified geometries show that the plasma clouds deform in a manner that qualitatively agrees with observations. Numerical solutions are presented in a companion paper. Finite resistivity along the magnetic field has two effects. First, it governs the short‐wavelength limit for striations. Second, for small plasma clouds (those whose contribution to the height‐integrated conductivity is small), finite resistivity requires that a substantial electric field be present (∼10² mv/m) in order that the growth rate for striations circumvent a reduction by the short‐circuiting effect. |
Формат |
application.pdf |
Копирайт |
Copyright © 1973 by the American Geophysical Union. |
Тема |
IONOSPHERE |
Тема |
Particles and Fields—Ionosphere: General or miscellaneous |
Тема |
MAGNETOSPHERIC PHYSICS |
Тема |
Particles and Fields—Magnetosphere: General or miscellaneous |
Название |
Deformation and striation of plasma clouds in the ionosphere: 1 |
Тип |
article |
DOI |
10.1029/JA078i004p00697 |
Electronic ISSN |
2156-2202 |
Print ISSN |
0148-0227 |
Журнал |
Journal of Geophysical Research |
Том |
78 |
Первая страница |
697 |
Последняя страница |
709 |
Выпуск |
4 |
Библиографическая ссылка |
Dungey, J. W., Cosmic Electrodynamics, 161, Cambridge University Press, London, 1958. |
Библиографическая ссылка |
Haerendel, G., R.Lüst, E.Rieger, Motion of artificial ion clouds in the upper atmosphere, Planet. Space Sci., 15, 1, 1967. |
Библиографическая ссылка |
Linson, L. M., J. B.Workman, Formation of striations in ionospheric plasma clouds, J. Geophys. Res., 75, 3211, 1970. |
Библиографическая ссылка |
McCormac, B. M., S. B.Mende, S. L.Ossakow, Eregion striations generated by ionosphere plasma clouds (abstract), Eos Trans. AGU, 52, 297, 1971. |
Библиографическая ссылка |
Rosenberg, N. W., Observations of striation formation in a barium ion cloud, J. Geophys. Res., 76, 6856, 1971. |
Библиографическая ссылка |
Simon, A., Growth and stability of artificial ion clouds in the ionosphere, J. Geophys. Res., 75, 6287, 1970. |
Библиографическая ссылка |
Simon, A., A. M.Sleeper, Barium cloud growth in a highly conducting medium, J. Geophys. Res., 77, 2353, 1972. |
Библиографическая ссылка |
Völk, H. J., G.Haerendel, Striations in ionospheric ion clouds, 1, J. Geophys. Res., 76, 4541, 1971. |
Библиографическая ссылка |
Yih, C. ‐S., Dynamics of Nonhomogeneous Fluidschap. 5, sec. 1, 4, and 6, Macmillan, New York, 1965. |
Библиографическая ссылка |
Zabusky, N. J., J. H.DolesIII, F. W.Perkins, Deformation and striation of plasma clouds in the ionosphere, 2, Numerical simulation of a nonlinear two‐dimensional model, J. Geophys. Res., 7836, 711, 1973. |