Aerosol size confines climate response to volcanic super-eruptions

Details Aerosol size confines climate response to volcanic super-eruptions Aerosol size confines climate response to volcanic super-eruptions

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3724705t&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 24, CiteID L24705

Physics

2

Atmospheric Composition And Structure: Volcanic Effects (8409), Global Change: Earth System Modeling (1225), Paleoceanography: Aerosols (0305, 4801), Paleoceanography: Global Climate Models (1626, 3337), Global Change: Abrupt/Rapid Climate Change (4901, 8408)

Scientific paper

Extremely large volcanic eruptions have been linked to global climate change, biotic turnover, and, for the Younger Toba Tuff (YTT) eruption 74,000 years ago, near-extinction of modern humans. One of the largest uncertainties of the climate effects involves evolution and growth of aerosol particles. A huge atmospheric concentration of sulfate causes higher collision rates, larger particle sizes, and rapid fall out, which in turn greatly affects radiative feedbacks. We address this key process by incorporating the effects of aerosol microphysical processes into an Earth System Model. The temperature response is shorter (9-10 years) and three times weaker (-3.5 K at maximum globally) than estimated before, although cooling could still have reached -12 K in some midlatitude continental regions after one year. The smaller response, plus its geographic patchiness, suggests that most biota may have escaped threshold extinction pressures from the eruption.

Affiliated with

Also associated with

No associations

Rating

Aerosol size confines climate response to volcanic super-eruptions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Aerosol size confines climate response to volcanic super-eruptions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aerosol size confines climate response to volcanic super-eruptions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1292692