Relationship of the characteristics of magnetohydrodynamic waves to plasma density gradients near L = 4.
Abstract
Excitation and localization characteristics of MHD waves present in the earth's magnetosphere are analyzed, with special emphasis on the importance of magnetospheric plasma density gradients in determining wave localizations. A summary is presented of a study of the relationships of MHD wave characteristics to the latitude profiles of topside electron density profiles observed by the ISIS 2 satellite near the same local and universal times. The wave polarization/plasma gradient observations presented are discussed in the context of theoretical considerations of hydromagnetic wave excitation. Also discussed is the impulse excitation of ULF waves.
- Publication:
-
Journal of Atmospheric and Terrestrial Physics
- Pub Date:
- November 1976
- DOI:
- 10.1016/0021-9169(76)90039-8
- Bibcode:
- 1976JATP...38.1093L
- Keywords:
-
- Magnetic Variations;
- Magnetohydrodynamic Waves;
- Magnetospheric Electron Density;
- Plasma Density;
- Power Spectra;
- Wave Excitation;
- Density Distribution;
- Electron Density Profiles;
- Extremely Low Radio Frequencies;
- Geomagnetism;
- Plasmapause;
- Polarization (Waves);
- Geophysics