Abstract
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.
Department
Earth Systems Research Center
Publication Date
11-1-1994
Journal Title
Geophysical Research Letters
Publisher
American Geophysical Union (AGU)
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
Zielinski, G. A., Fiacco, R. J., Mayewski, P. A., Meeker, L. D., Whitlow, S., Twickler, M. S., . . . Yasui, M. (1994). Climatic impact of the A.D. 1783 Asama (Japan) Eruption was minimal: Evidence from the GISP2 Ice Core. Geophysical Research Letters, 21(22), 2365-2368. doi:10.1029/94GL02481
Rights
©1994. American Geophysical Union. All Rights Reserved.
Comments
This is an article published by AGU in Geophysical Research Letters in 1994, available online: https://dx.doi.org/10.1029/94GL02481