Groundwater and Regional Water Cycle Studies
Groundwater & Subsurface HydrologyWe investigate regional water cycles in Kumamoto and beyond. In the Kumamoto region, where groundwater serves as a vital municipal, agricultural, and industrial water resource, quantifying subsurface flow dynamics and projecting future availability are urgent priorities. (Additional topics coming soon.)
1. Nationwide Geotechnical Data Analysis
Nationwide Borehole Logs and Soil Laboratory Data
Borehole logs and laboratory soil test records from across Japan are publicly archived on KuniJiban, the National Geotechnical Information Search Site operated by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). By analyzing this large-scale geotechnical database, we advance subsurface hydrological characterization—such as estimating hydraulic conductivity for groundwater flow modeling.
Spatial distribution of soil test sites across Japan