THE ANNUAL AND DIURNAL VARIATION OF METEOR RATES IN THE SOUTHERN HEMISPHERE

The results are given of a continuous survey of meteor rates for the year from February, 1960 to January, 1961. The omni-directional radar equipment used operated at a frequency of 69.5 megacycles, and was located near Christchurch, New Zealand. Extensive measures were adopted to ensure constancy of...

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Bibliographic Details
Main Authors: ELLYETT,C.D, KEAY,C.S
Format: Report
Language:English
Subjects:
DIURNAL VARIATIONS
ECHO RANGING
FREQUENCY
MEASUREMENT
METEORS
NOISE
RADAR EQUIPMENT
SOUTHERN HEMISPHERE
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Summary:The results are given of a continuous survey of meteor rates for the year from February, 1960 to January, 1961. The omni-directional radar equipment used operated at a frequency of 69.5 megacycles, and was located near Christchurch, New Zealand. Extensive measures were adopted to ensure constancy of the equipment parameters and the elimination of sensitivity variations due to external noise, both man-made and natural. Meteors were recorded down to a limiting radio magnitude of +9.1, while the most frequently observed meteors were of radio magnitude +6.2. Echo rates as high as 200 per hour were often obtained. It is shown that reliable meteor rates can be obtained free from the influence of ionospheric effects. The dominating influence of the angle between the observing station and the apex of the earth's way is definitely established. (Author)