The large-scale magnetic field in the global solar cycle: observational aspects

Abstract

The global solar cycle is considered as an interaction of 3 types of activity: at low-latitude (sunspots), at high-latitude (polar faculae) and the weak magnetic field. The properties of single and 3-fold reversals of the polar magnetic field are considered. The variation spectrum of the large-scale magnetic field of the Sun is analyzed in the range of 1-30 nHz. A dependence between the rate of a poleward meridional flow and phase of the global cycle is discussed.