On external and internal parts of the geomagnetic jerk of 1970

Details On external and internal parts of the geomagnetic jerk of 1970 On external and internal parts of the geomagnetic jerk of 1970

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pepi...39..265n&link_type=abstract

(American Geophysical Union, Session on Irregularities in the Secular Variation and Geodynamic Implications, Cincinnati, OH, May

Physics

3

Geomagnetism, Magnetic Flux, Periodic Variations, Secular Variations, Solar Terrestrial Interactions, Annual Variations, Europe, Northern Hemisphere, Solar Activity Effects, Sunspots

Scientific paper

The internal and external parts of the geomagnetic acceleration (jerk) phenomenon of 1970 and the geomagnetic impulse of 1977-1981 were studied using all-day international quiet day and selected quiet-day annual mean values from two observatories (Nurmijarvi and Sodankyla) in northern Europe. It is shown that the external part in the jerk signal in the Y component of the North Europe geomagnetic field was small. Correlations between magnetic field and solar activity indices and jerk signals are also briefly discussed.

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