Validation

Hydrata runs unmodified ANUGA — the same open-source solver developed by Geoscience Australia and the Australian National University. Every simulation on Hydrata produces identical results to running ANUGA locally.

Validation Record

ANUGA has been validated against:

• 30+ benchmark problems — laboratory flume experiments, field observations, analytical solutions
• Peer-reviewed publications — over 100 papers using ANUGA for flood, tsunami, and storm surge modeling
• Government-grade applications — used by Geoscience Australia for national tsunami risk assessments

Benchmarks

Benchmark	Description	Status
Merewether	Urban flood in Newcastle, NSW — validated against observed flood marks	Verified on Hydrata
ANUGA validation suite	30+ standard benchmarks from the ANUGA repository	Passes (upstream CI)

Regulatory Acceptance

ANUGA is accepted by regulators in multiple jurisdictions. See Regulatory Acceptance for details by jurisdiction.

How Hydrata Preserves Solver Integrity

1. Unmodified ANUGA — Hydrata does not fork or modify the ANUGA solver. We use anuga_core as a dependency.
2. Deterministic execution — same inputs produce same outputs on Hydrata cloud or local Python.
3. Portable model files — Hydrata's scenario.json format can be exported and run locally with run_anuga.
4. Open-source toolchain — run_anuga (MIT licence) handles the Hydrata-to-ANUGA translation. View on GitHub.