| Co-Investigator(Kenkyū-buntansha) |
眞木 雅之 鹿児島大学, 地方防災教育研究センター, 特任教授 (10360364)
鈴木 雄治郎 東京大学, 地震研究所, 助教 (30392939)
小園 誠史 東北大学, 理学研究科, 准教授 (40506747)
萬年 一剛 神奈川県温泉地学研究所, 研究課, 主任研究員 (70416080)
前坂 剛 国立研究開発法人防災科学技術研究所, 観測予測研究領域, 主任研究員 (70450260)
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| Budget Amount *help |
¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
Fiscal Year 2016: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2015: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2014: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2013: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2012: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Outline of Final Research Achievements |
Tephra (volcanic ash) dispersal in the atmosphere causes a serious problem of aviation safety. Development of a model for an accurate forecast of tephra dispersal is desired. In this study, we have developed a new three-dimensional eruption column dynamics model, in which transportation and settling of particles are calculated, and a new diffusion-advection model of tephra dispersal, in which bending of source eruption columns is considered. We have also established a new method to determine the three-dimensional distribution of ash particles in eruption clouds based on radar observations. The models and the method of radar observations have been applied to actual volcanic eruptions (e.g., the Kirishima 2011 eruption and recent Sakurajima explosions). These developments of new techniques have improved the existing tephra dispersal model.
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