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Radar Meteor Counts: Anomalous Increase during 1963.

B A McIntosh, P M Millman

Science (New York, N.Y.)

|December 11, 1964

Summary

Radar meteor counts revealed a significant 50% rise in short-duration echoes during mid-1963 in Ottawa, Canada. This atmospheric phenomenon was also observed in the Southern Hemisphere, indicating a widespread event.

Area of Science:

Meteorology
Atmospheric Science
Radar Astronomy

Background:

Meteorological radar systems are crucial for tracking atmospheric phenomena.
Short-duration echoes detected by radar can indicate various atmospheric events.
Previous studies have documented seasonal variations in meteor activity.

Purpose of the Study:

To analyze recent trends in radar-detected meteor counts.
To investigate anomalies in short-duration echo rates.
To compare findings between the Northern and Southern Hemispheres.

Main Methods:

Utilized radar meteor count data from Ottawa, Canada.
Analyzed hourly rates of short-duration echoes.
Compared data from the middle months of 1963.

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Cross-referenced with observations from the Southern Hemisphere.

Main Results:

Observed an increase of up to 50% in hourly rates of short-duration echoes.
The increase was noted during the middle months of 1963.
A similar increase in meteor counts was concurrently observed in the Southern Hemisphere.

Conclusions:

The mid-1963 period was characterized by a significant, widespread increase in radar-detected meteor activity.
This suggests a potential global or hemispheric atmospheric event affecting meteor detection.
Further research is needed to identify the cause of this observed increase.