Caravan
Open Source
The open global large-sample hydrology dataset — thousands of catchments with forcing, attributes and streamflow.
Delft-FEWS
ActiveDeltares' operational forecasting platform — the shell running national flood-forecast centres worldwide.
by Deltares
- Pricing
- Free
- License
- Free licence via Deltares (not open source)
- Commercial use
- Permitted
- Ecosystem
- Java, Any model as plugin
- Platform
- Windows, Linux
About Delft-FEWS
Delft-FEWS is not a model but the operational system around models: it ingests real-time observations and NWP forecasts, runs any model chain (HEC-RAS, Wflow, SWMM, MIKE, custom binaries) on schedule, manages state and ensembles, and presents forecasters with a unified interface with alarms and dissemination. National services — the UK, Australia, the US National Water Model display chain, Rhine and Meuse authorities — run on it.
Licensing is unusual: free to use with paid support and setup typically via Deltares. Adopting FEWS is an infrastructure decision rather than a download, but nothing else in operational hydrology matches its install base.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
Alternatives to Delft-FEWS
Ranked by the topics, categories and workflow stages they share with Delft-FEWS.
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