STUDY OF GEOMAGNETIC FLUCTUATIONS
AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA
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A continuing study of fluctuations of the earths magnetic field is described. Its purpose has been to record and analyze fluctuations within the frequency range 1 to 50 cycles per second. Analysis is directed toward relating these fluctuations to specific causes. Three orthogonal components are recorded. Data has been obtained for various periods up to a year or more from individual recording stations at College, Alaska Ft. Devens, Massachusetts Thule, Greenland Mt. Evans, Colorado Huancayo, Peru and Shickley, Nebraska. Reduction of data to digital form is accomplished by a semi-automatic data- processing system. Output of the system is a series of numbers representing ean hourly activity within six one-octave bands for each component. These bands are centered at 1.5, 2.75, 5.0, 10.0, 20.0 and 40.0 cycles per second. Part of the available data has been reduced and a start made on its analysis. There appears to be a positive c rrelati n between meteor activity and geomagnetic fluctuations in the 1 to 2 cycle per second range, which is to be studied further.
- Test Facilities, Equipment and Methods