Physics
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2365z&link_type=abstract
Geophysical Research Letters, Volume 21, Issue 22, p. 2365-2368
Physics
9
Atmospheric Composition And Structure: Volcanic Effects, Volcanology: Atmospheric Effects, Meteorology And Atmospheric Dynamics: Paleoclimatology, Atmospheric Composition And Structure: Aerosols And Particles
Scientific paper
Assessing the climatic impact of the A.D. 1783 eruption of Mt. Asama, Japan, is complicated by the concurrent eruption of Laki, Iceland. Estimates of the stratospheric loading of H2SO4 for the A.D. 1108 eruption of Asama derived from the SO42- time series in the GISP2 Greenland ice core indicate a loading of about 10.4 Tg H2SO4 with a resulting stratospheric optical depth of 0.087. Assuming sulfur emissions from the 1783 eruption were only one-third of the 1108 event yields a H2SO4 loading value of 3.5 Tg and a stratospheric optical depth of only 0.029. These results suggest minimal climatic effects in the Northern Hemisphere from the 1783 Asama eruption, thus any volcanically-induced cooling in the mid-1780s is probably due to the Laki eruption.
Endo Katsuyoshi
Fiacco R. J.
Germani Mark S.
Mayewski Paul A.
Meeker L. D.
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