data.govt.nz - River Environment Classification REC2
New Zealand's national river network classification database mapping every river segment by climate, flow source, topography, geology and land cover; downloadable as Esri File Geodatabase / shapefiles.
catalogue.data.govt.nz
At a glance
- Region
- New Zealand (Oceania)
- Coverage
- National
- Access
- Free
- Category
- Government
- Last updated
- 2025
What's inside
- River Network
- Catchment Attributes
- Hydrography
What you can do with it
Typical work that data of this type supports.
- 01
Coverage gaps
Find who lacks safe water or sanitation.
Because it has: River Network
- 02
Benchmarking
Compare utilities on service and losses.
- 03
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: Catchment Attributes
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Failure prediction
Predict pipe bursts and plant failures before they happen.
- 02
Demand forecasts
Forecast daily demand for pumping and storage.
- 03
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
Machine access and documentation
Open API
CKAN catalogue.data.govt.nz with bulk geodatabase download
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- Hawke's Bay Regional Council Open DataOceania | Free
- MfE River Flows Layer (data.mfe.govt.nz)Oceania | Free
- NIWA DataHubOceania | Free
- NZ River Flows - data.govt.nzOceania | Free
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