eReefs GBR4: 4km Hydrodynamic Model of the Great Barrier Reef

A near-real-time regional hydrodynamic model of the Great Barrier Reef at 4km resolution, updated daily until January 2024. The model, named GBR4_H2p0, was forced with ocean boundary data from OceanMAPS, atmospheric data from ACCESS-R, and incorporates tidal constituents and river flow data from 71 rivers. Results are aggregated by the Australian Ocean Data Network.

Use Cases

• Simulating ocean currents and water circulation based on the 4km-resolution hydrodynamic model.
• Analyzing the impact of riverine freshwater and nutrient inputs based on the incorporated data from 71 rivers.
• Studying tidal influences on the reef system based on the 22 tidal constituents used in the model.
• Investigating the effects of atmospheric forcing on ocean conditions based on the ACCESS-R model data.

Strengths

• Model incorporates forcing data from multiple authoritative sources, including OceanMAPS, ACCESS-R, and a global tide model.
• Includes measured and estimated river flow data for a total of 71 rivers, suggesting detailed boundary conditions.
• Ran in near-real-time mode with daily updates, indicating operational relevance for its time.

Limitations

• The near-real-time data stream was halted in January 2024 due to sensor damage, limiting temporal coverage.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Results from version 2.0 of the 4km-resolution regional-scale hydrodynamic model (GBR4).

Time Range

Ran in near-real-time until January 2024.

Freshness

Last updated 2026-04-10 19:54:25.932370; freshness should be verified as the model run ended in 2024.

Geography

Great Barrier Reef region.