eReefs GBR4 Hydrodynamics v2.0: 4km 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 the BlueLink OceanMAPS system and atmospheric data from the Bureau of Meteorology ACCESS-R model, incorporating tidal constituents and river flow data from 71 rivers. This configuration, known as GBR4_H2p0, ran in near-real-time with daily updates until January 2024 when sensor damage during the monsoon season halted operations.

Use Cases

• Simulating ocean currents and water circulation patterns based on the 4km-resolution hydrodynamic model.
• Analyzing the impact of river discharge and freshwater inputs on reef ecosystems based on data from 71 rivers.
• Studying tidal influences on the Great Barrier Reef using the 22 tidal constituents derived from the global CSR model.
• Investigating near-real-time oceanographic conditions up to January 2024 based on the model's daily update cycle.

Strengths

• Model incorporates forcing data from authoritative sources like the Bureau of Meteorology and BlueLink OceanMAPS.
• Includes detailed river boundary data from 71 rivers, with measured flows for 22 and estimated flows for 49.
• Provides 4km-resolution spatial detail for the entire Great Barrier Reef region.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data collection was halted in January 2024 due to sensor damage, limiting temporal coverage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Output from the eReefs GBR4 v2.0 hydrodynamic model, forced with operational ocean and atmospheric models.

Time Range

Ran in near-real-time until January 2024.

Freshness

Last updated 2026-04-28 13:27:01.246869; freshness should be verified.

Geography

Great Barrier Reef region.