STUDIES OF THE ANGULAR PROPERTIES OF VHF-AURORAL REFLECTIONS

Continuous recordings of the azimuthal dependence of the direction of incidence of auroral reflections in the 90 Mc/s band have been made at Kiruna Geophysical Observatory. Both the Swedish FM-transmitter in Ostersund (87.9 Mc/s) and the Finnish one in Kemi (92.8 Mc/s) were recorded simultaneously....

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Bibliographic Details
Main Author: Egeland,Alv
Other Authors: KIRUNA GEOPHYSICAL OBSERVATORY (SWEDEN)
Format: Text
Language:English
Published: 1961
Subjects:
Atmospheric Physics
Active & Passive Radar Detection & Equipment
(*AURORAE
REFLECTION)
(*RADAR CROSS SECTIONS
VERY HIGH FREQUENCY)
ANTENNAS
DIURNAL VARIATIONS
VELOCITY
IONIZATION
TRANSMITTER RECEIVERS
SENSITIVITY
THEORY
AZIMUTH
RADIO WAVES
SWEDEN
Kiruna
Online Access:http://www.dtic.mil/docs/citations/AD0660113
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0660113
Description
Summary:Continuous recordings of the azimuthal dependence of the direction of incidence of auroral reflections in the 90 Mc/s band have been made at Kiruna Geophysical Observatory. Both the Swedish FM-transmitter in Ostersund (87.9 Mc/s) and the Finnish one in Kemi (92.8 Mc/s) were recorded simultaneously. In the period from April to September, 1961 the Swedish FM-transmitter Vannas (88.5 Mc/s) has been monitored. The auroral reflections from the three transmitters were recorded with the same antenna - a five-element Yagi - which rotated automatically in azimuth at a speed of 69 degrees per minute. (Author)

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