APPLICATION OF “SHALLOW-WATER” NUMERICAL MODELS FOR HAZARD ASSESSMENT OF VOLCANIC FLOWS: THE CASE OF TITAN2D AND TURRIALBA VOLCANO (COSTA RICA)
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad de Costa Rica
2015
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| _version_ | 1876470710857105408 |
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| author | Sylvain J. Charbonnier |
| author_facet | Sylvain J. Charbonnier |
| contents | APPLICATION OF “SHALLOW-WATER” NUMERICAL MODELS FOR HAZARD ASSESSMENT OF VOLCANIC FLOWS: THE CASE OF TITAN2D AND TURRIALBA VOLCANO (COSTA RICA) Sylvain J. Charbonnier José L. Palma Sarah Ogburn Geología and block Titan2D shallow sessment This paper introduces Titan2D, a depth averaged model of an incompressible Coulomb continuum for “shallow water” granular flows. Titan2D has been used successfully at many volcanoes to predict inundation by block- and-ash flows and debris avalanches. It can be run as a stand-alone program or through Vhub, a cyber-infrastructure platform. Practical considerations of choosing appropriate user inputs and the basics of running the model are discussed herein. Both synthetic and natural terrain examples are presented, including simulations of a block-and-ash flow gener - ated from the gravitational collapse of a synthetic dome at Turrialba volcano (Costa Rica). These results suggest that the model should be limited to simulate cases of dense volcanic granular flows, like those produced by gravity-driven dome collapse events, but cannot be used to simulate dilute pyroclastic density currents. Finally, estimation of the Ti - tan2D resistance terms by using empirical relationships provides a good method for reducing model input uncertainties. 2015 artículo científico 0256-7024 https://www.redalyc.org/articulo.oa?id=45439324006 en http://www.redalyc.org/revista.oa?id=454 Revista Geológica de América Central application/pdf Universidad de Costa Rica Revista Geológica de América Central (Costa Rica) Num.52 |
| format | Artículo científico |
| id | redalyc_45439324006 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad de Costa Rica |
| spellingShingle | APPLICATION OF “SHALLOW-WATER” NUMERICAL MODELS FOR HAZARD ASSESSMENT OF VOLCANIC FLOWS: THE CASE OF TITAN2D AND TURRIALBA VOLCANO (COSTA RICA) Sylvain J. Charbonnier Geología and block Titan2D shallow sessment APPLICATION OF “SHALLOW-WATER” NUMERICAL MODELS FOR HAZARD ASSESSMENT OF VOLCANIC FLOWS: THE CASE OF TITAN2D AND TURRIALBA VOLCANO (COSTA RICA) Sylvain J. Charbonnier José L. Palma Sarah Ogburn Geología and block Titan2D shallow sessment This paper introduces Titan2D, a depth averaged model of an incompressible Coulomb continuum for “shallow water” granular flows. Titan2D has been used successfully at many volcanoes to predict inundation by block- and-ash flows and debris avalanches. It can be run as a stand-alone program or through Vhub, a cyber-infrastructure platform. Practical considerations of choosing appropriate user inputs and the basics of running the model are discussed herein. Both synthetic and natural terrain examples are presented, including simulations of a block-and-ash flow gener - ated from the gravitational collapse of a synthetic dome at Turrialba volcano (Costa Rica). These results suggest that the model should be limited to simulate cases of dense volcanic granular flows, like those produced by gravity-driven dome collapse events, but cannot be used to simulate dilute pyroclastic density currents. Finally, estimation of the Ti - tan2D resistance terms by using empirical relationships provides a good method for reducing model input uncertainties. 2015 artículo científico 0256-7024 https://www.redalyc.org/articulo.oa?id=45439324006 en http://www.redalyc.org/revista.oa?id=454 Revista Geológica de América Central application/pdf Universidad de Costa Rica Revista Geológica de América Central (Costa Rica) Num.52 |
| title | APPLICATION OF “SHALLOW-WATER” NUMERICAL MODELS FOR HAZARD ASSESSMENT OF VOLCANIC FLOWS: THE CASE OF TITAN2D AND TURRIALBA VOLCANO (COSTA RICA) |
| topic | Geología and block Titan2D shallow sessment |
| url | https://www.redalyc.org/articulo.oa?id=45439324006 |