UHSLC ERDDAP (University of Hawaii Sea Level Center)
ERDDAP serving the Joint Archive for Sea Level research-quality and fast-delivery tide-gauge water-level data: the largest global collection of quality-controlled hourly sea-level records (1846-present).
uhslc.soest.hawaii.edu
At a glance
- Region
- USA (Global)
- Coverage
- Global tide gauges
- Access
- Free
- Category
- Academic
- Last updated
- 2026
What's inside
- sea level
- tide gauge
- water level
What you can do with it
Typical work that data of this type supports.
- 01
Sea-level planning
Plan for sea-level rise and storm surge.
Because it has: sea level
- 02
Saline intrusion
Track salt moving into rivers and aquifers.
- 03
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: tide gauge
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Surge forecasts
Forecast surge and coastal water levels quickly.
- 02
Shoreline change
Detect erosion and accretion from imagery.
- 03
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
Machine access and documentation
Open API
ERDDAP tabledap at uhslc.soest.hawaii.edu/erddap (CSV/JSON/NetCDF); keyless
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- Copernicus Marine ServiceGlobal | Free
- ESA CCI Open Data PortalGlobal | Free
- GLEON via Cary Institute: Global Lake Ecological Observatory NetworkGlobal | Free
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