NIWA DataHub
Earth Sciences New Zealand (NIWA) open data catalogue for New Zealand's land, water and atmosphere, including freshwater datasets served via an ArcGIS Hub open data platform (data-niwa.opendata.arcgis.com) with downloadable layers and REST/GeoJSON services.
data.niwa.co.nz
At a glance
- Region
- New Zealand (Oceania)
- Coverage
- National
- Access
- Free
- Category
- Government
What's inside
- Streamflow
- Water Quality
- River Network
- Freshwater Ecology
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
Hotspots and trends
Find where contamination is high and whether it is getting worse.
Because it has: Water Quality
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.
Machine access and documentation
Open API
Machine-readable endpoint on data-niwa.opendata.arcgis.com
Licence: not stated, check before reuse
Listed in our registry of open water APIs, which WaterDataGPT can query live.
Related water data
- Auckland Council Environment Data PortalOceania | Free
- Hawke's Bay Regional Council Time Series Data (Hilltop Server)Oceania | Free
- MfE River Flows Layer (data.mfe.govt.nz)Oceania | Free
- NZ River Flows - data.govt.nzOceania | Free
- Auckland Council Open DataOceania | Free
- CAMELS-NZ: Hourly dataset for Aotearoa New ZealandOceania | Free
Find more water data
Search and compare 1,900+ water data sources by region, type and access.