Signs of possible volcanism on Venus

In this paper the author discusses some independent facts established by exploration of Venus, and endeavors to clarify the origin of such phenomena as the electrical activity of the atmosphere, the bimodal particle distribution in the clouds on Venus, and the variable properties of the upper cloud deck, all discovered by polarimetric and radiometric techniques. Analysis of recent spacecraft data suggests that the frequent electrical discharges in the surface layers of the Venus atmosphere, the variable density of the submicron haze above the clouds and certain properties of the cloud microphysics can jointly be explained if the planetary surface is undergoing volcanic eruptions