MPI-M Erdsystem-Projekt “Super-Vulkan”

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"Super-Vulkan" war ausgewählter Forschungsschwerpunkt des Jahresberichtes 2011 des MPI-M.



•Climate effect of larger volcanic eruptions are weaker and smaller than previously thought.
•The global temperature signal is determined by the strength of the SO2 emission and not by the latitude of the eruption.
•Post-eruption oceanic and atmospheric anomalies describe a decadal fluctuation in the coupled ocean–atmosphere system.
•Improved description of processes acting on multidecadal timescales is pivotal to constrain the climate response to the 1809 and Tambora tropical eruptions.
•Radiative heating from volcanic ash cause rotation of volcanic cloud, which influences the transport in the first days on local scale.
•Eruption season has a significant influence on aerosol optical depth and clear-sky shortwave (SW) radiative flux anomalies and for large volcanic eruption also on the all sky SW flux anomalies.
•Annular mode response after volcanic eruption increases logarithmically with increasing eruption magnitude.
•Deposition of sulphate to the Antarctic polar ice sheet is strongly dependent on eruption magnitude
•Mt. Pinatubo eruption causes the observed delay of the QBO cycle in 1991/1992.
•Post-eruption sea ice anomalies show strong hemispheric differences dependent on the magnitude of the eruption.
•Bare soil coverage is strongly increasing after a very large volcanic eruption with  fewer trees and more grass. •Post-eruption atmospheric CO2 anomalies are explained mainly by changes in land carbon storage in the initial phase. In the longer term, the ocean compensates for the atmospheric carbon loss.


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    Related Literature


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  • <LINK>Geological Society</LINK> - Teaching Resources - Super-eruptions: global effects and future threats
  • <LINK>Cambridge</LINK> Volcanology Group
  • <LINK>Yellowstone</LINK> Volcano Observatory
  • <LINK>How Volcanoes Work</LINK> ( !!!! Links to many interesting volcano pages !!!!!)
  • <LINK>Volcano World</LINK> -- The Premier Source of Volcano Info on the Web
  • <LINK>Volcano Live</LINK> - John Seach
  • <LINK>NASA</LINK> EOS IDS Volcanology