2008/02/01 by Stephen Self, S. Blake · 3 citations
Physics and Astronomy · Earth and Planetary Sciences · #Astro and Planetary Science #Atmospheric Ozone and Climate #Solar and Space Plasma Dynamics #Citation #Open cluster #Media studies #History #Sociology #Art history #Library science #Computer science #Physics #Astronomy
paper · doi:10.2113/gselements.4.1.41
openalex publication_date 2008/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Rare but extremely large explosive supereruptions lead to the catastrophic formation of huge calderas, devastation of substantial regions by pyroclastic flow deposits, and ash falls that cover continent-sized areas. The effects of future supereruptions will be felt globally or at least by a whole hemisphere. The most widespread effects are likely to derive from the volcanic gases released, particularly sulfur gases that are converted into sulfuric acid aerosols in the stratosphere. These will remain for several years, promoting changes in atmospheric circulation and causing surface temperatures to fall dramatically in many regions, bringing about temporary reductions in light levels and producing severe and unseasonable weather ('volcanic winter'). Major disruptions to global societal infrastructure can be expected for periods of months to years, and the cost to global financial markets will be high and sustained.