On possible origins of relatively short-term variations in the solar structure

Abstract
The general large-scale redistribution of magnetic field over the solar cycle is possibly associated with an overall variation of thermal structure of the convection zone, which modulates not only the total luminosity but also the latitudinal distribution of radiative flux, thereby modifying the irradiance of the Earth. Whether the cause of this variation lies within the convection zone or is more deeply seated is still an open question.