Computational modeling of the 1991 block and ash flows at Colima Volcano, México
Por:
Rupp B., Bursik M., Namikawa L., Webb A., Patra A.K., Saucedo R., Macías J.L., Renschler C.
Publicada:
1 ene 2006
Resumen:
A new numerical code for simulating flows of granular material, TITAN2D, is used to model the Merapi-type block and ash flows resulting from the 1991 eruption of Colima Volcano, México. The 1991 block and ash flows reached distances of up to 4 km from the vent with a total estimated volume of 8 × 105 m3. The block and ash flows were modeled using a digital elevation model (DEM) of the region and compared to field data using a quantitative center-line comparison method. Input parameter values, which dictate flow dynamics, were varied to demonstrate the effect these parameters have on the program output. Analysis showed that the TITAN2D model performs best in replicating the center lines of the 1991 Colima block and ash flows when using an initial volume value representative of a single flow event rather than a total deposit volume. © 2006 Geological Society of America.
Filiaciones:
Rupp B.:
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, NY 14260, United States
Bursik M.:
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, NY 14260, United States
Namikawa L.:
Department of Geography, University at Buffalo, 105 Wilkeson Quad, Buffalo, NY 14261, United States
Webb A.:
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, NY 14260, United States
Patra A.K.:
Department of Mechanical and Aerospace Engineering, University at Buffalo, 318 Jarvis Hall, Buffalo, NY 14260-4400, United States
Saucedo R.:
Department of Geology, Autonomous University of San Luis Potosí, Mexico
Macías J.L.:
Institute of Geophysics, National Autonomous University of México, Ciudad Universitaria, Del. Coyocán, D.F., C.P. 04510, Mexico
Renschler C.:
Department of Geography, University at Buffalo, 105 Wilkeson Quad, Buffalo, NY 14261, United States
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