The Journal of the Petrological Society of Korea (암석학회지)

The Petrological Society of Korea (한국암석학회)
권호 표지
DOI QR코드

DOI QR Code

Implementation of Lava Flow Simulation Program Using Cellular Automata

Cellular Automata를 이용한 용암류 모의 프로그램의 구현

  • Lee, Chung-Hwan (Department of Computer Science Engineering, Pusan National University) ;
  • Hong Lee, Dong-jin (Department of Computer Science Engineering, Pusan National University) ;
  • Cha, Eui-young (Department of Computer Science Engineering, Pusan National University) ;
  • Yun, Sung-Hyo (Department of Earth Science Education, Pusan National University)
  • 이충환 (부산대학교 전기전자컴퓨터공학과) ;
  • 홍동진 (부산대학교 전기전자컴퓨터공학과) ;
  • 차의영 (부산대학교 전기전자컴퓨터공학과) ;
  • 윤성효 (부산대학교 지구과학교육과)
  • Received : 2016.11.22
  • Accepted : 2017.02.06
  • Published : 2017.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we propose a lava flow simulation program to predict the range of lava flows area and thickness of lava flows during volcanic eruptions. The map information is represented as a 'cell' with observed values per fixed area such as DEM and a lava flow prediction algorithm using a cellular automata model is performed to predict the flow of lava flows. To obtain quantitative data of lava flows, fluid properties of lava flows are defined as Bingham plastic fluid and derived equation is applied to the rules of cellular automata. To verify the program, we use a 30m resolution DEM provided by USGS. We compared simulation results with real lava flows for the Pu'u'O'o crater area in Hawaii, which has erupted since May 24, 2016.

본 논문에서는 화산 분화 시 분출되는 용암류의 피복 범위와 용암류의 두께를 모의하기 위한 용암류 시뮬레이션 프로그램을 구현한다. 지도 정보를 DEM과 같이 일정한 면적마다 관측된 값을 가진 '셀'로 나타내고 셀룰러 오토마타 모델을 적용한 용암류 모의 알고리즘을 수행하여 용암류의 흐름에 대해서 모의한다. 용암류의 정량적인 데이터를 얻기 위해 용암류의 유체 특성을 빙햄 소성유체(Bingham plastic fluid)로 정의하고, 유도된 식을 셀룰러 오토마타의 규칙에 사용한다. 프로그램에 대한 검증을 위해 USGS에서 제공하는 30m 해상도 DEM을 이용하였으며, Hawaii의 푸우오오 분화구(Pu'u'O'o crater) 지역에서 2016년 5월 24일에 발생한 용암류에 대해 실제로 용암류가 흐른 흔적과 시뮬레이션의 모의 결과를 비교하였다.

Keywords

References

  1. Bilotta, G., Cappello, A., Herault, A., Vicari, A., Russo, G. and Del Negro, C., 2012, Sensitivity analysis of the MAGFLOW Cellular Automaton model for lava flow simulation. Environmental Modelling & Software 35, 122-131. https://doi.org/10.1016/j.envsoft.2012.02.015
  2. Del Negro, C., Fortuna, L., Herault, A. and Vicari, A., 2008, Simulations of the 2004 lava flow at Etna volcano using the magflow cellular automata model, Bulletin of Volcanology, 70, 805-812. https://doi.org/10.1007/s00445-007-0168-8
  3. Dragoni, M., Bonafede, M. and Boschi, E., 1986. Downslope flow models of a Bingham liquid: implications for lava flows. Journal of Volcanology and Geothermal Research, 30, 305-325. https://doi.org/10.1016/0377-0273(86)90059-4
  4. Dragoni, M. and Tallarico, A., 1989, The effect of crystallization on the rheology and dynamics of lava flows, Journal of Volcanology and Geothermal Research., 59, 241-252.
  5. Fink, J.H. and Griffiths, R.W., 1998, Morphology, eruption rates, and rheology of lava domes: Insights from laboratory models. Journal of Geophysical Research: Solid Earth(1978-2012), 103(B1), 527-545. https://doi.org/10.1029/97JB02838
  6. Ishihara K., Iguchi M. and Kamo K., 1990, Numerical simulation of lava flows on some volcanoes in Japan, (ed. Fink, Jonathan H.), IAVCEI Proceedings in Volcanology, Lava flows and domes: emplacement mechanisms and hazard implications. Springer, Berlin Heidelberg New York, 174-207, 243p.
  7. Miyamoto, H. and Sasaki, S., 1997, Simulating lava flows by an improved cellular automata method. Computers & Geosciences 23, 283-292. https://doi.org/10.1016/S0098-3004(96)00089-1
  8. Vicari, A., Herault, A., Del Negro, C., Coltelli, M., Marsella, M. and Proietti C., 2007, Modeling of the 2001 lava flow at Etna volcano by a Cellular Automata approach. Environmental Modelling & Software, 22, 1465-1471. https://doi.org/10.1016/j.envsoft.2006.10.005
  9. Yoon, D.H. and Koh, J.H., 2012, A Study on Analysis of Landslide Disaster Area using Cellular Automata : An Application to Umyeonsan, Seocho-Gu, Seoul, Korea. Journal of Korea Spatial Information Society, 20, 9-18. in Korean with English abstract) https://doi.org/10.12672/ksis.2012.20.1.009