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.
이용수
초록· 키워드
오류제보하기
To predict the influence of volcano eruption on agriculture in South Korea we evaluated the dispersal ranges of the volcanic ashes toward the South Korea based on the possibilities of volcano eruption in Mt. Baekdu. The possibilities of volcano eruption in Mt. Baekdu have been still being intensified by the signals including magmatic unrest of the volcano and the frequency of volcanic earthquakes swarm, the horizontal displacement and vertical uplift around the Mt. Baekdu, the temperature rises of hot springs, high ratios of N₂/O₂ and ₃He/₄He in volcanic gases. The dispersal direction and ranges and the predicted amount of volcanic ash can be significantly influenced by Volcanic Explosivity Index (VEI) and the trend of seasonal wind. The prediction of volcanic ash dispersion by the model showed that the ash cloud extended to Ulleung Island and Japan within 9 hours and 24 hours by the northwestern monsoon wind in winter while the ash cloud extended to northern side by the south-east monsoon wind during June and September. However, the ash cloud may extent to Seoul and southwest coast within 9 hours and 15 hours by northern wind in winter, leading to severe ash deposits over the whole area of South Korea, although the thickness of the ash deposits generally decreases exponentially with increasing distance from a volcano. In case of VEI 7, the ash deposits of Daejeon and Gangneung are 1.31 × 10<SUP>4</SUP> g m<SUP>-2</SUP> and 1.80 × 10<SUP>5</SUP> g m<SUP>-2</SUP>, respectively. In addition, ash particles may compact close together after they fall to the ground, resulting in increase of the bulk density that can alter the soil physical and chemical properties detrimental to agricultural practices and crop growth.
목차
ABSTRACT
Introduction
Materials and Methods
Conclusions
References
참고문헌 (43)
참고문헌 신청
Alberger, B., M.J. Calhoun, G.M. Bedell, and P. Stern. 1980. The economic effects of the eruptions of Mt. St. Helens. USITC publication 1096, Washington D.C., USA, 83p.
Andrews, R. 2017. Could North Korea Accidentally Trigger A Volcanic Supereruption? https://www.forbes.com/sites/robinandrews/2017/08/23/heres-how-north-korea-could-accidentally-trigger-a-volcanic-supereruption/#27ab47abd558
Armienti, P., G. Macedonio, and M.T. Pareschi. 1988. A numerical-model for simulation of tephra transport and deposition-applications to May 18, 1980, Mount-St-Helens eruption, J. Geophy. Res. 93:6463-6476.
Clynne, M.A., D.W. Ramsey, and E.W. Wolfe. 2005. Pre-1980 eruptive history of mount St. Helens, Washington. US Geological Survey, 4p.
Cronin, S.J., M.J. Hedley, V.E. Neall, and R.G. Smith. 1998. Agronomic impact of tephra fallout from the 1995 and 1996 Ruapehu Volcano eruptions. N. Z. Environ. Geol. 34:21-30. doi:10.1007/s002540050253
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UCI(KEPA) : I410-ECN-0101-2018-523-001805793