GBR4_H2p0: Great Barrier Reef Hydrodynamic Model Results

eReefs GBR4_H2p0 provides results from a 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 incorporates measured and estimated river flow data from 71 rivers. It operated in near-real-time with daily updates until January 2024, when river-flow sensor damage halted operations.

Use Cases

• Simulating ocean currents and water temperature based on the 4km-resolution hydrodynamic model.
• Assessing the impact of river plumes and freshwater discharge based on measured data from 22 rivers and estimates from 49 others.
• Studying tidal influences using the 22 tidal constituents derived from the global CSR tide model.
• Monitoring near-real-time hydrodynamic conditions for the period the model was operational.

Strengths

• Model incorporates detailed forcing data, including measured stream flow from 22 rivers and estimated flows from 49 additional rivers.
• Uses a high-resolution 4km grid specifically for the Great Barrier Reef region.
• Integrates multiple validated data sources: OceanMAPS for ocean boundaries, ACCESS-R for atmosphere, and CSR for tides.

Limitations

• The model's near-real-time data stream was interrupted in January 2024 due to sensor damage, limiting its current operational utility.
• Specific column names, row counts, file sizes, and the data license are not provided in the available metadata.
• Data is served via WMS/PNG/HTML formats, which may require specialized tools for access and analysis compared to raw data files.

Provenance

Source

CSIRO Marlin Data Catalogue, as part of the eReefs initiative.

Collection Method

Output from the GBR4 version 2.0 hydrodynamic model simulation.

Time Range

Covers the model's operational period up to January 2024.

Freshness

Last updated metadata dates range from 2026-03-25 to 2026-04-26, but the underlying model data stream ended in January 2024.

Geography

Great Barrier Reef region, Australia.