Evaluation of SO2 emission from the 1982 eruption of El Chichon by glaciological and satellite methods
The SO_2 emission at the time of the 1982 eruption of El Chichon in Mexico was estimated by a glaciological method based on sulfate ion concentration and bomb-produced total β activity in snow collected in Antarctica. The glaciological estimate of the SO_2 emission is 17±1 Mt SO_2,somewhat greater t...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English Japanese |
| Published: |
National Institute of Polar Research
1998
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| Subjects: | |
| Online Access: | https://doi.org/10.15094/00009040 https://doaj.org/article/3e516c60b8044333ad6b4e1a671cd037 |
| Summary: | The SO_2 emission at the time of the 1982 eruption of El Chichon in Mexico was estimated by a glaciological method based on sulfate ion concentration and bomb-produced total β activity in snow collected in Antarctica. The glaciological estimate of the SO_2 emission is 17±1 Mt SO_2,somewhat greater than the spectroscopic estimate (7Mt SO_2) measured by a satellite-carried total ozone mapping system. We conclude that the glaciological method is useful to estimate SO_2 emissions of past explosive volcanic eruptions in the equatorial region. |
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