Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Farley instability and the polar cap E-field

Technical Report ·
OSTI ID:7317136
; ;
The theoretical distributions over the polar cap of the growth rates of the gradient and the Farley--Buneman two-stream instabilities are compared to the measured distribution of the Slant E Condition (SEC) on polar cap ionograms. The Farley instability seems the most likely source of the SEC, and this fact opens the possibility by means of ground-based ionospheric Doppler radars of detecting whether the polar cap E-field is above or below a critical field and, if above, of determining the direction of the E-field and the magnitude of the critical field. (auth)
Research Organization:
Danish Meteorological Inst., Copenhagen
OSTI ID:
7317136
Report Number(s):
N-76-22802
Country of Publication:
United States
Language:
English

Similar Records

The Farley instability and the polar cap E field
Journal Article · Mon Sep 01 00:00:00 EDT 1975 · J. Geophys. Res., v. 80, no. 25, pp. 3698-3700 · OSTI ID:4161270
Further evidence for the Farley-Buneman instability in the polar cap ionosphere
Journal Article · Mon Sep 01 00:00:00 EDT 1975 · J. Geophys. Res., v. 80, no. 25, pp. 3713-3714 · OSTI ID:4161271
Azimuthal distribution of HF slant E echoes and its relationship to the polar cap electric field
Journal Article · Sun Aug 01 00:00:00 EDT 1976 · J. Geophys. Res.; (United States) · OSTI ID:7337209

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CURRENTS
DISTURBANCES
E REGION
EARTH ATMOSPHERE
ELECTRIC CURRENTS
ELECTRIC FIELDS
INSTABILITY
INSTABILITY GROWTH RATES
IONOSPHERE
PLANETARY IONSPHERES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
TWO-STREAM INSTABILITY