Reports

The Mount St. Helens Volcanic Eruption of 18 May 1980: Minimal Climatic Effect

Science  19 Jun 1981:
Vol. 212, Issue 4501, pp. 1383-1384
DOI: 10.1126/science.212.4501.1383

Abstract

An energy-balance numerical climate model was used to simulate the effects of the Mount St. Helens volcanic eruption of 18 May 1980. The resulting surface temperature depression is a maximum of 0.1°C in the winter in the polar region, but is an order of magnitude smaller than the observed natural variability from other effects and will therefore be undetectable.