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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University >
第70号 >
放熱率測定に基づいた有珠2000年噴火の活動推移長期予測
| Title: | 放熱率測定に基づいた有珠2000年噴火の活動推移長期予測 |
| Other Titles: | Long-term prediction of Usu volcano 2000 eruptive activity based on the measurements of heat discharge rate |
| Authors: | 後藤, 章夫1 Browse this author | | 鍵山, 恒臣2 Browse this author | | 宮本, 毅3 Browse this author | | 横尾, 亮彦4 Browse this author | | 谷口, 宏充5 Browse this author |
| Authors(alt): | GOTO, Akio1 | | KAGIYAMA, Tsuneomi2 | | MIYAMOTO, Tsuyoshi3 | | YOKOO, Akihiko4 | | TANIGUCHI, Hiromitsu5 |
| Issue Date: | 15-Mar-2007 |
| Publisher: | 北海道大学大学院理学研究院自然史科学部門（地球物理学） |
| Journal Title: | 北海道大学地球物理学研究報告 |
| Journal Title(alt): | Geophysical bulletin of Hokkaido University |
| Volume: | 70 |
| Start Page: | 137 |
| End Page: | 144 |
| Abstract: | The energy source of volcanic activity is the heat of magma. Heat discharge rate on the initial stage of Usu 2000 eruptive activity was estimated to be around 1×109 J/sec, that was over one order higher than that on the initial stage of the 1977 activity, and comparable to its peak release rate observed after two years from the beginning of the eruptive activity. Compare to the 1977 activity, much shorter duration of the 2000 activity may be the result of rapid cooling of the intruded magma. Abundant ground water supplied from Lake Toya might remove the heat effectively through active vapor plume rise. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/20429 |
| Appears in Collections: | 北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University > 第70号
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