eReefs GBR4 Hydrodynamics v2.0: 4km Regional Model of the Great Barrier Reef

Results from version 2.0 of the 4km-resolution regional-scale hydrodynamic model of the Great Barrier Reef. The model was forced with ocean boundary data from OceanMAPS, atmospheric data from ACCESS-R, and incorporated tidal constituents and river flow data from 71 rivers. The model ran in near-real-time mode, updating daily, until January 2024 when sensor damage disrupted the river-flow forcing dataset.

Use Cases

• Simulating ocean currents and water circulation based on the 4km-resolution hydrodynamic model.
• Analyzing the impact of river discharge on reef ecosystems based on data from 71 rivers.
• Studying tidal influences using the 22 tidal constituents derived from the global CSR tide model.
• Investigating near-real-time oceanographic conditions from the daily updating model run.

Strengths

• Model results are based on a 4km-resolution grid, providing regional-scale detail.
• Forcing incorporates data from multiple authoritative sources, including OceanMAPS, ACCESS-R, and 22 river gauging stations.
• The model configuration follows a defined naming protocol (GBR4_H2p0) for consistency.

Limitations

• The near-real-time data stream was halted in January 2024 due to lost river-flow forcing data.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data volume are unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Output from the eReefs GBR4 v2.0 hydrodynamic model, forced with external ocean, atmospheric, and river data.

Time Range

Coverage spans the model's operational period until January 2024.

Freshness

Model ran in near-real-time until January 2024; metadata last updated 2026-06-05.

Geography

Great Barrier Reef region.