High-latitude ionospheric irregularities - a review of recent radar results

Conference · Tue Nov 01 04:00:00 EST 1983 · Radio Sci.; (United States)

OSTI ID:6590649

Hanuise, C

Ionospheric small-scale irregularities are commonly detected with radar systems in both E and F regions from subauroral latitudes to the polar cap. In the E region, numerous observations performed at frequencies from HF to UHF have led to an understanding of the main features of the generating plasma instabilities. On the other hand, F region irregularities can only be detected with HF radars due to the aspect sensitivity of the echoes and the ionospheric refraction at these frequencies. Doppler studies have been performed only recently but have already shown that several well-known plasma instability mechanisms can explain the observations. The radar observations of these various natural irregularities are reviewed with emphasis on the recent results and their implications for the theories of their generating mechanisms. 122 references.

• Research Organization: Toulon et Var Universite, Toulon, France
• OSTI ID: 6590649
• Report Number(s): CONF-8208193-
• Conference Information: Journal Name: Radio Sci.; (United States) Journal Volume: 18
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAL ZONES
DOPPLER EFFECT
E REGION
EARTH ATMOSPHERE
F REGION
INSTABILITY
IONOSPHERE
MEASURING INSTRUMENTS
PLANETARY IONOSPHERES
PLASMA INSTABILITY
POLAR REGIONS
RADAR
RANGE FINDERS