Geological Survey of Japan - Groundwater (WellWeb) Network
AIST/Geological Survey of Japan observation-well network (Tokai and Kansai regions) measuring groundwater levels, discharge, radon and crustal strain since 1998, with corrected observation data published online for earthquake and hydrogeology research.
gbank.gsj.jp
At a glance
- Region
- Japan (Asia)
- Coverage
- Japan (Tokai/Kansai)
- Access
- Free
- Category
- Research Institute
- Last updated
- 2026
What's inside
- Groundwater level
- Groundwater discharge
- Strain
What you can do with it
Typical work that data of this type supports.
- 01
Trend hotspots
Find where water tables are falling year after year.
Because it has: Groundwater level
- 02
Recharge planning
Site recharge structures and new borewells with evidence.
- 03
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: Groundwater discharge
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Gap filling
Rebuild missing well readings from neighbours, rainfall and season.
- 02
Level forecasts
Forecast pre- and post-monsoon levels well by well.
- 03
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
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- APHRODITE Asian Precipitation Gridded Dataset (Hirosaki University)Asia | Free
- Digital Agency Japan Water DashboardAsia | Free
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