지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 273 - 286 (14page)
이용수
초록· 키워드
오류제보하기
Heisei lava dome was formed in Unzen volcano over the period from 1991 to 1995. The recent continuous observations have shown that the lava dome is still growing, which is a threat for the life of the nearby residents. How to estimate the range of collapse and potential block-and-ash flows is an urgent problem. Airborne laser scanning method is briefly introduced. We presented a division to separate the lava dome with 10 potential collapsed blocks and set some measuring points to observe the elevation change in each block. By analyzing the elevation decrease from 2003 to 2014, the potential collapsed blocks that experienced obvious changes were identified. With the evaluation of elevation changes by airborne laser data, the buried terrain of dome was reconstructed. The results show that the whole lava dome from lobe 1 to 11 may collapse, and the potential maximum volume of collapsed part is 1.46 × 107 m3. If the collapsed part forms block-and-ash flow, the flow will arrive at the seaside in approximately 7 minutes according to the result of simulation. The flow could travel approximately 8.5 km, and the average velocity is approximately 20 m/s.
목차
등록된 정보가 없습니다.
참고문헌 (40)
참고문헌 신청
Bardintzeff, J.M. / 1984 / Merapi Volcano (Java, Indonesia) and Merapi-Type Nuee Ardente / Bulletin of Volcanology 47:433~446
Boudon, G. / 1993 / The 1984 nuee-ardente deposits of Merapi volcano, central Java, Indonesia: stratigraphy, textural characteristics, and transport mechanisms / Bulletin of Volcanology 55:327~342
Calder, E.S. / 2002 / Mechanisms of lava dome instability and generation of rockfalls and pyroclastic flows at Soufriere Hills Volcano, Montserrat / Memoirs - Geological Society of London 21:173~190
Carn, S.A. / 2004 / Anatomy of a lava dome collapse: the 20 March 2000 event at Soufriere Hills Volcano, Montserrat / Journal of Volcanology and Geothermal Research 131:241~264
Chigira, M. / 2004 / Using an airborne laser scanner for the identification of shallow landslides and susceptibility assessment in an area of ignimbrite overlain by permeable pyroclastics / Landslides 1:203~209
Boudon, G. / 1993 / The 1984 nuee-ardente deposits of Merapi volcano, central Java, Indonesia: stratigraphy, textural characteristics, and transport mechanisms / Bulletin of Volcanology 55:327~342
Calder, E.S. / 2002 / Mechanisms of lava dome instability and generation of rockfalls and pyroclastic flows at Soufriere Hills Volcano, Montserrat / Memoirs - Geological Society of London 21:173~190
Carn, S.A. / 2004 / Anatomy of a lava dome collapse: the 20 March 2000 event at Soufriere Hills Volcano, Montserrat / Journal of Volcanology and Geothermal Research 131:241~264
Chigira, M. / 2004 / Using an airborne laser scanner for the identification of shallow landslides and susceptibility assessment in an area of ignimbrite overlain by permeable pyroclastics / Landslides 1:203~209
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