Venus: Volcanic Eruptions May Cause Atmospheric Obscuration

Science  30 Jun 1967:
Vol. 156, Issue 3783, pp. 1729-1730
DOI: 10.1126/science.156.3783.1729


High rates of volcanic and tectonic activities are inferred from Venus's high surface temperature. The effects of volcanic effluents, gas and dust, on obscuration in the atmosphere are considered. The optical extinction due to particulate matter is estimated from assumed distributions as to particle size and altitude. As few as ten explosive eruptions per annum would cause significant absorption and scattering of visible light.