IAEA WISER: Global Network of Isotopes in Precipitation/Rivers (GNIP/GNIR)
Self-service platform for IAEA/WMO water-isotope networks: >100,000 isotope records (δ18O, δ2H, tritium) of monthly and event precipitation and river samples from 1,000+ global stations since 1961.
nucleus.iaea.org
At a glance
- Region
- Austria (Global)
- Coverage
- Global
- Access
- Free
- Category
- UN Organization
- Last updated
- 2026
What's inside
- water isotopes
- precipitation chemistry
- river isotopes
What you can do with it
Typical work that data of this type supports.
- 01
Design storms
Build rainfall intensity-duration-frequency curves for drainage design.
Because it has: precipitation chemistry
- 02
Model input
Drive hydrological, crop and urban drainage models.
- 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
Downscaling
Turn coarse rainfall grids into field or ward scale estimates.
- 02
Gauge + satellite fusion
Correct satellite rainfall with gauges using machine learning.
- 03
Risk maps
Predict contamination where no samples exist, from geology, land use and climate.
Related water data
- IAEA GNIP - Global Network of Isotopes in PrecipitationGlobal | Registration Required
- IAEA GNIR - Global Network of Isotopes in RiversGlobal | Registration Required
- UN-SPIDER Knowledge Portal - Space-based Water & Flood Data SourcesGlobal | Free
- Copernicus Lake Water Quality NRT v2 (100m)Global | Free
- Dartmouth Flood ObservatoryGlobal | Free
- Eawag Global Arsenic in Groundwater DatasetGlobal | Free
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