Solar quasi-biennial oscillations (QBOs) with the time scale of 0.6–4 yrs appear to be a basic
feature of the Sun's activity. Observational aspects of QBOs are reviewed on the basis of …

Traditionally, the solar activity cycle is thought as an interplay of the main dipole component
of the solar poloidal magnetic field and the toroidal magnetic field. However, the real picture …

Solar magnetic activity varies with time in the two hemispheres in different ways. The
hemispheric interconnection of solar activity phenomena provides an important clue to …

Quasi-biennial oscillations (QBOs) are frequently observed in solar activity indices.
However, no clear physical mechanism for the observed variations has been suggested so …

Solar activity indices vary over the Sun's disk, and various activity parameters are not
considered to be symmetric between the northern and southern hemispheres of the Sun …

Using some solar activity indicators such as sunspot areas and green-line coronal emission
during the period 1974–2001, we find that the quasi-biennial periodicity is a fundamental …

Aims. The spatio-temporal dynamics of solar activity has been investigated by studying the
main oscillations and the time evolution of the basic periods. Methods. The spatio-temporal …

Quasi-biennial oscillation (QBO) of solar magnetic activities is intrinsic to dynamo
mechanism, but still far from fully understood. In this work, the phase and amplitude …

The space–time distribution of asymmetry in the area and total number of sunspot groups
was considered over the time interval 1874–2009. The time behavior of the asymmetry in …

Монография посвящена современным представлениям о солнечной активности, её
цикличности, прогнозе будущих проявлений активности. Приведены основные …