Two different types of enhanced ion acoustic fluctuations observed in the upper ionosphere
Journal Article
·
· Journal of Geophysical Research
- Centre d`etude des Environnements Terrestre et Planetaires, Velizy (France)
UHF and VHF data for the EISCAT incoherent scatter radar facility in northern Scandinavia is presented. Electron and ion temperatures, electron density, and ion drift velocity were measured from heights of 280 to 1500 km. Enhanced ion acoustic fluctuations are more observable with VHF than UHF radar due to wavelength effects. The fluctuations are usually associated with a large flux of precipitating electrons with energies from 100 ev to 10 kev. The spatial extent of the turbulent regions are determined. 23 refs., 6 figs.
- OSTI ID:
- 146006
- Journal Information:
- Journal of Geophysical Research, Vol. 100, Issue A8; Other Information: PBD: 1 Aug 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
EISCAT radar observations of enhanced incoherent scatter spectra; their relation to red aurora and field-aligned currents
Naturally enhanced ion acoustic waves in the auroral ionosphere observed with the EISCAT 933-MHz radar
The variation with T sub e and T sub i of the velocity of unstable ionospheric two-stream waves
Journal Article
·
Sat Jun 01 00:00:00 EDT 1991
· Geophysical Research Letters (American Geophysical Union); (United States)
·
OSTI ID:146006
+1 more
Naturally enhanced ion acoustic waves in the auroral ionosphere observed with the EISCAT 933-MHz radar
Journal Article
·
Fri Nov 01 00:00:00 EST 1991
· Journal of Geophysical Research; (United States)
·
OSTI ID:146006
The variation with T sub e and T sub i of the velocity of unstable ionospheric two-stream waves
Journal Article
·
Wed Nov 01 00:00:00 EST 1989
· Journal of Geophysical Research; (USA)
·
OSTI ID:146006