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Division of Integrated Area Studies
YONEZAWA, Go (Japanese Research Fellow)
Geoinformatics

Research Interests

Faulted geologic information plays an important role in the fields of civil engineering， construction， and environmental preservation. My research is a mathematical formation of geologic structure formed by faulting. Three-dimensional (3-D) modeling of geologic structure is an effective method composed of two elements: the logical model of geologic structure and DEM (Digital Elevation Model). I assume that the fault surface divides the preexisting geologic units into two parts. If the relation between the geologic units and the surfaces in each part is preserved， the logical model of geologic structure in both sides is expressed in the same form as the case of the geologic structure before the faulting. Focusing on this rule， we can define a new recursive definition to derive the logical model of geologic structure that involves fault movements. The recursive definition provides a powerful tool to derive the logical model of complex geologic structures formed by sedimentation， erosion， and faulting through simple mechanical procedures. It is expected that this study would advance the computer processing of faulted geologic structures to the next stage. Further， as developed， this system can be applied to the geologic structure of Southeast Asia， where it would be important to draw a hazard map including faults and landslides.

Current research topics:

Research Activities in 2005 Fiscal Year

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