Ionospheric Irregularities: Auroral Motions and Plasma Drifts.

Photometric measurements of auroral intensities and spatial structure were made at Chatanika, Alaska during 1973 and 1974. The auroral intensities measured during 1974 in support of the ICE CAP '74 program of experiments are analyzed in terms of the energy input from precipitating particles. Au...

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Bibliographic Details
Main Author: Sears,Robert D.
Other Authors: LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CALIF PALO ALTO RESEARCH LAB
Format: Text
Language:English
Published: 1975
Subjects:
Atmospheric Physics
*AURORAE
*IONOSPHERIC DISTURBANCES
VELOCITY
STATISTICAL DATA
ALASKA
COHERENCE
INTENSITY
RADIANCE
VISIBLE SPECTRA
SPECTRAL ENERGY DISTRIBUTION
PHOTOMETRY
PARTICLE FLUX
PHOTOMETERS
E region
F region
Icecap operation
Ice cap
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA011371
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA011371
Description
Summary:Photometric measurements of auroral intensities and spatial structure were made at Chatanika, Alaska during 1973 and 1974. The auroral intensities measured during 1974 in support of the ICE CAP '74 program of experiments are analyzed in terms of the energy input from precipitating particles. Auroral motion data which were obtained during the ICE CAP '73 program are analyzed in terms of the direction and velocity of the wavelike structure of the auroras. These velocity data are compared with measurements of the ionospheric plasma motion made by the Chatanika incoherent scatter radar. Over a wide range of auroral conditions, at least part of the time, it is found that the motions of auroral forms agree with the motion of the ionospheric plasma. This behavior suggests that both phenomena are driven by magnetospheric E-fields superimposed upon the ionosphere. See also report dated 4 Dec 73, AD-776 241.

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