NAC2H: North-American Climate Change and Hydroclimatology Dataset (OSF)
Hydrometeorological and hydroclimatological dataset for 3,540 North American watersheds: observed daily streamflow, precipitation and temperature, 20 bias-corrected climate model projections, hydrological model calibration parameters, ~16,000 simulation combinations, and 51 pre-computed hydrological indices per simulation. Supports impact-chain uncertainty analysis.
osf.io
At a glance
- Region
- North America
- Coverage
- 3,540 watersheds across North America
- Access
- Free
- Category
- Academic
- Last updated
- 2025
What's inside
- Streamflow
- Precipitation
- Temperature
- Climate projections
- Hydrological indices
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: Streamflow
- 02
Low flows
Set environmental flows and check what is left in the river in a dry year.
- 03
Risk screening
Screen projects and assets for climate risk.
Because it has: Temperature
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
Bias correction
Correct and downscale climate model output for a site.
Machine access and documentation
Open API
OSF REST API at api.osf.io/v2/nodes/s97cd/ for programmatic file access
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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