Longitudinal Distribution of Recurrent Solar Activity Sources and Its Reflection in Geomagnetic Variations
Abstract
By analysing the autocorrelation function of the geomagnetic activity-index, a series of subsidiary maxima have been found, which seem to indicate that they correspond to periods considerably different from the solar rotation period. It has been found that these subsidiary maxima are located symmetrically around the maxima of the first and second recurrence of the solar rotation period (and probably also around the subsequent ones). This fact leads to a model of two or more geoactive longitudes on the Sun.
- Publication:
-
Bulletin of the Astronomical Institutes of Czechoslovakia
- Pub Date:
- 1980
- Bibcode:
- 1980BAICz..31..119L
- Keywords:
-
- Geomagnetism;
- Solar Activity Effects;
- Solar Terrestrial Interactions;
- Autocorrelation;
- Periodic Variations;
- Solar Rotation;
- Time Series Analysis;
- Solar Physics