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Title
Japanese:Numerical Modeling of a Volcanic Hydrothermal System Based on Resistivity Structure 
English:Numerical Modeling of a Volcanic Hydrothermal System Based on Resistivity Structure 
Author
Japanese: 松永康生, 神田径.  
English: Yasuo Matsunaga, Wataru Kanda.  
Language English 
Journal/Book name
Japanese:Journal of Disaster Research 
English:Journal of Disaster Research 
Volume, Number, Page Vol. 17    No. 5    pp. 654-662
Published date Aug. 1, 2022 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://dx.doi.org/10.20965/jdr.2022.p0654
 
DOI https://doi.org/10.20965/jdr.2022.p0654
Abstract <jats:p>Numerical simulation is a useful method for studying the magmatic-hydrothermal systems of volcanoes. However, no comprehensive scheme has been established for constructing subsurface permeability structures that have a significant impact on fluid flow within the volcano. In this study, as a first step to establishing such a scheme, numerical simulations of hydrothermal fluid flow incorporating the heterogeneous properties of the permeability structure were performed utilizing the resistivity structure observed at Kusatsu-Shirane Volcano, central Japan. Although the constructed permeability structure was relatively simple, the simulation results closely reproduced some observations, such as the broad resistivity structure and the distribution and discharge patterns of hot springs around the volcano. These results suggest that the uncertainty in generating permeability structures in hydrothermal fluid flow simulations can be greatly reduced by using resistivity structures.</jats:p>

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