Tsunami Inundation Models with Spatially Varying Tidal Planes for Australian Coast

An open-source hydrodynamic model for tsunami propagation across the Pacific Ocean, using nested grids to resolve sites of interest with resolution down to 10 meters. The dataset, associated with Geoscience Australia Data, demonstrates a technique for modeling tsunamis with spatially varying Highest Astronomical Tide levels, validated in a case study of the Gladstone region. Earthquake-tsunami scenarios are sampled from the 2018 Australian Probabilistic Tsunami Hazard Assessment database.

Use Cases

• Compare tsunami hazard estimates using static versus spatially varying tidal planes based on the described modeling technique.
• Validate hydrodynamic models for specific Australian coastal sites like Lady Elliot Island, Boyne Island, and Rosslyn Bay based on the case study locations.
• Sample earthquake-tsunami scenarios for probabilistic hazard assessment based on the 2018 Australian Probabilistic Tsunami Hazard Assessment database mentioned.
• Assess computational efficiency of inundation modeling methods based on the description of overhead in existing multi-scenario approaches.

Strengths

• Model resolution down to 10 meters for nested grids at sites of interest.
• Demonstrates technique validated against static tide models at three distinct sites with different HAT levels.
• Scenarios sampled from a referenced probabilistic hazard assessment database (Davies & Griffin, 2018).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data format is DOCX, which is atypical for structured geospatial model data and may require conversion.

Provenance

Source

Geoscience Australia Data

Collection Method

Developed, tested, and validated an open-source hydrodynamic model using nested grids; scenarios sampled from the 2018 Australian Probabilistic Tsunami Hazard Assessment database.

Freshness

Last updated 2026-05-19 22:24:59.210468; freshness should be verified.

Geography

Pacific Ocean, with specific focus on Australian coastal regions near Broome (WA), Mackay (QLD), and Gladstone.