CLIMATIC IMPACT OF THE AD 1783 ASAMA (JAPAN) ERUPTION WAS MINIMAL - EVIDENCE FROM THE GISP2 ICE CORE

被引：22
|
作者：
ZIELINSKI, GA
FIACCO, RJ
MAYEWSKI, PA
MEEKER, LD
WHITLOW, S
TWICKLER, MS
GERMANI, MS
ENDO, K
YASUI, M
机构：
[1] MCCRONE ASSOCIATES INC,WESTMONT,IL 60559
[2] NIHON UNIV,DEPT EARTH SCI,SETAGAYA KU,TOKYO 156,JAPAN
来源：
GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 22期
关键词：
D O I：
10.1029/94GL02481
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
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 SO4(2-) 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.
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页码：2365 / 2368
页数：4
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