Solar magnetic field distribution and geomagnetic activity

Regularities in the solar background magnetic field distribution are described and some of their specific patterns and their structures are studied. The influence of the solar differential rotation on the behaviour of “Magnetic Active Longitudes” is demonstrated. The origin of some specific details different in both polarities is discussed. The relation of this longitudinal solar magnetic field distribution to the longitudinal distribution of the daily geomagnetic character figures C9 is investigated. Some correlational characteristics are given. The specific “Index of Geomagnetic Recurrence” is estimated and the changes of its values in time are demonstrated.