Delta Hydro

Caravan

Active

The open global large-sample hydrology dataset — thousands of catchments with forcing, attributes and streamflow.

Pricing
Open Source
License
CC-BY-4.0 (data); BSD (code)
Commercial use
Permitted
Ecosystem
Python, Google Earth Engine
Platform
Windows, macOS, Linux

About Caravan

Caravan, initiated by Frederik Kratzert and collaborators, standardised what CAMELS started: a single open dataset of catchment attributes, meteorological forcing (ERA5-Land derived) and observed streamflow across thousands of basins worldwide, in one consistent format — plus the open pipeline for the community to extend it, which regional groups have done enthusiastically.

If you train or benchmark hydrological models — machine learning or conceptual — Caravan is the closest thing the field has to a common benchmark substrate. It pairs naturally with NeuralHydrology, and its community extensions keep widening coverage beyond the original countries.

Where it fits in the workflow

TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting

Alternatives to Caravan

Other data, monitoring & forecasting tools covering similar workflow stages.

ARR Data Hub

Gov-Public

The official portal for Australian Rainfall & Runoff design inputs — losses, temporal patterns and preburst.

Data, Monitoring & ForecastingActiveIDF CurvesDesign Storms

Near-real-time scatterometer soil moisture from EUMETSAT — hours of latency, useful for operational monitoring.

Data, Monitoring & ForecastingActiveSatellite Soil Moisture DataStreamflow Forecasting

CHIRPS

Free

Gauge-blended satellite rainfall at 0.05°, daily, since 1981 — the standard for drainage work in data-sparse regions.

Data, Monitoring & ForecastingActiveSatellite Precipitation DataRainfall Data

Deltares' operational forecasting platform — the shell running national flood-forecast centres worldwide.

Data, Monitoring & ForecastingActiveStreamflow ForecastingFlood Mapping

ECMWF's hourly global reanalysis — the default gap-free climate forcing record for ungauged catchments worldwide.

Data, Monitoring & ForecastingActiveClimate Reanalysis DataRainfall Data

The longest satellite soil moisture record available — merged active+passive retrievals back to 1978, free, no login.

Data, Monitoring & ForecastingActiveSatellite Soil Moisture DataDrought Analysis