ICWRGC / GRDC River Discharge Data Service
International Centre for Water Resources and Global Change description and access point for the GRDC River Discharge Data Download, exposing the world's largest quality-assured in-situ river discharge archive (Global Runoff Database, since 1988) operated under WMO.
waterandchange.org
At a glance
- Region
- Global
- Coverage
- Global
- Access
- Free
- Category
- International
- Last updated
- 2025
What's inside
- river discharge
- streamflow
- gauge stations
Terms explained
What you can do with it
Typical work that data of this type supports.
- 01
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: river discharge
- 02
Low flows
Set environmental flows and check what is left in the river in a dry year.
- 03
Hotspots and trends
Find where contamination is high and whether it is getting worse.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
- 02
Ungauged basins
Combine with catchment data to estimate flow where there is no gauge.
- 03
Risk maps
Predict contamination where no samples exist, from geology, land use and climate.
Related water data
- BfG GRDC (Global Runoff Data Centre)Global | Registration Required
- GEOGLOWS River Forecast System Data ServiceGlobal | Free
- GRADES Global Reach-scale A priori DischargeGlobal | Free
- GRADES-hydroDL Global River DischargeGlobal | Free
- SAGE Global River Discharge DatabaseGlobal | Free
- UNESCO Global River Discharge DatabaseGlobal | Free
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