Solar flare phenomena and their manifestation in the different epochs of the solar activity

Researches of distribution and physical characteristics of solar flare events in different epochs of solar activity (SA) manifestation has been conducted. Modern methods of instrumental observations of the like events cover period 20 - 24 SC that includes a SC of "increased" (20 - 22) SA, transition period (part 22nd and 23th SC) and part (growth branch) SC of "lowered" (24) SA. During all these epochs the regime of a magnetic field generation in a convective zone of the Sun was significantly different that has to lead to different manifestations of sunspot-forming and flare activities. If in inside epochs background magnetic fields though significantly differ, but remain constants, in the transition periods the magnetic fields rearrange themselves to the levels typical for different epochs of SA. So for the transition period from the epoch of "increased” to the epoch of "lowered” SA (SC 23) have been falling of mean and polar magnetic field (Svalgaard) levels and the magnetic field strength in the sunspot umbra (the effect of Penn-Livingston). Because the solar flare events are a result of the interaction of the new emerging magnetic fluxes with the already existing magnetic fields of active regions, the observed proofs of a difference in the process of the preparation, realization and power in the realization of the periods flare energy release in different epochs of solar activity are given. Attracting regular ground-based observations of solar flare events in the line at 6563 Å (Ha) and in other spectral lines that are sensitive to flare process can extend the time period of our study. In this case, the investigated period may be extended by the inclusion of solar cycles 19, 18 (the epoch of "increased" SA), 17 - the transition period from the epoch of "lowered" to the epoch of "increased" SA, and partly 16 (the epoch of "lowered" SA). During the transition period significantly increases the number of very large solar sunspot groups, occurs the most powerful solar flare events, including the largest solar proton events in the particles fluxes and can occurs violations of observational rules including the rule of heights alternation of even and odd solar cycles. Within the limits of epochs the established observational rules of sunspot-forming and flare activities can't be violated and all development of solar cycles goes according to similar schemes of the corresponding epochs.