Flood Mapping & Inundation Tools

GPU reimplementation of the CaMa-Flood global river routing model — continental flood simulation on PyTorch/Triton.

QGIS plugin for exploring mesh model results — animate TUFLOW, Telemac and HEC-RAS 2D outputs in the GIS.

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

Rapid flood modelling in the browser — steady-state inundation estimates in seconds, anywhere on earth.

Jacobs' 1D/2D river and floodplain suite — a UK practice staple with a genuinely useful free tier.

Planetary-scale geospatial analysis in the cloud — the data catalogue and compute behind modern water remote sensing.

The world's most used hydraulic model: free 1D/2D river analysis, sediment, water quality and flood mapping.

Free Spanish 2D hydraulic model — flow, turbulence, sediment and habitat modules behind a full GUI.

Pixel-level surface water history since 1984, built from the entire Landsat archive — where water has been, and when.

The Bristol raster flood model behind global flood maps — open source with GPU-accelerated solvers.

QGIS

Open SourceVerified

The free, open-source GIS that has become the default spatial platform for water engineers worldwide.

A modern Python interface for HEC-RAS project parsing, simulation automation, and result visualization.

Deltares' reduced-complexity compound flood model — coastal, fluvial and pluvial drivers in one fast solver.

Free 10-20m multispectral imagery, 5-day revisit — the imagery backbone under WorldCover and Dynamic World.

Benchmark-setting commercial 1D/2D flood engine with GPU acceleration — dominant in AU/UK flood studies.

Python + Google Earth Engine without the pain — interactive mapping and analysis of petabyte-scale water data.

Read HEC-RAS HDF5 geometry and results into GeoPandas/xarray — built for FEMA's flood-risk data pipelines.