A role of magnetic advection mechanisms in the formation of a sunspot belt

We examined two "magnetic antibuoyancy" effects: i) turbulent diamagnetism and ii) magnetic advection caused by vertical inhomogeneity of plasma density in the SCZ (the nabla rho effect). The Sun's rotation which yields the nabla rho effect with new properties was taken into account. It is shown that at high latitudes antibuoyancy effects block the magnetic fields in the deep layers of the SCZ. However, in the region located near-equator the nabla rho effect, modified by rotation, causes the upward magnetic advection. So it can facilitate penetration of strong magnetic fields to solar surface where they then arise in the "royal zone" as the sunspots.