NEON Data Portal (surface water chemistry & discharge)
US National Ecological Observatory Network open data: stream/lake surface-water chemistry, discharge, dissolved gases and rating curves across 80+ field sites.
data.neonscience.org
At a glance
- Region
- USA (North America)
- Coverage
- USA
- Access
- Free
- Category
- Research
- Last updated
- 2026
What's inside
- surface water chemistry
- stream discharge
- dissolved gases
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: stream discharge
- 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: surface water chemistry
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
NEON REST API at data.neonscience.org/api/v0; keyless
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
Related water data
- Abrupt Stream Acidification and Metal Mobilization from Permafrost Degradation (Dryad)North America | Free
- AOOS Ocean Data Explorer (Alaska Ocean Observing System)North America | Free
- CalOOS Data Portal (California Ocean Observing Systems)North America | Free
- CeNCOOS ERDDAP (Central & Northern California)North America | Free
- Environmental Data Initiative (EDI) Data PortalNorth America | Free
- GCOOS ERDDAP (Gulf of America Coastal Ocean Observing System)North America | Free
Find more water data
Search and compare 1,900+ water data sources by region, type and access.