WMO HydroSOS Global Hydrological Outlook
WMO's first global operational system integrating hydrological status assessments reporting current status and seasonal outlooks for river flow, groundwater, soil moisture, and snow cover
wmohydrosos.ceh.ac.uk
At a glance
- Region
- Global
- Coverage
- Global (WMO member countries)
- Access
- Free
- Category
- International
What's inside
- River Flow Status
- Groundwater Levels
- Soil Moisture
- Hydrological Outlooks
- Drought Monitoring
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 Flow Status
- 02
Low flows
Set environmental flows and check what is left in the river in a dry year.
- 03
Trend hotspots
Find where water tables are falling year after year.
Because it has: Groundwater Levels
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
Gap filling
Rebuild missing well readings from neighbours, rainfall and season.
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