Great Barrier Reef Hydrodynamic Model Results at 4km Resolution

Comprising results from version 2.0 of the 4km-resolution regional-scale hydrodynamic model of the Great Barrier Reef (GBR4). The model was forced with ocean boundary data from OceanMAPS, atmospheric data from ACCESS-R, and incorporates tidal constituents and river flow data from 71 rivers. It ran in near-real-time with daily updates until January 2024.

Use Cases

• Analyze hydrodynamic patterns using the 4km-resolution model grid for regional oceanographic studies
• Investigate the impact of river forcing from 71 rivers on Great Barrier Reef water properties
• Study tidal dynamics using the 22 tidal constituents derived from the global CSR tide model
• Examine the effects of atmospheric forcing from the ACCESS-R model on surface ocean conditions

Strengths

• High spatial resolution of 4km for regional-scale hydrodynamic modeling
• Incorporates forcing data from 71 rivers, including measured data from 22 rivers
• Includes 22 tidal constituents derived from the global CSR tide model for accurate tidal representation
• Ran in near-real-time mode with daily updates until January 2024

Limitations

• Model execution was halted in January 2024 due to sensor damage during the monsoon season, limiting temporal coverage
• Primary data formats are HTML, PNG, and WMS, which may require specialized tools for quantitative analysis compared to standard netCDF or CSV formats
• The loss of critical river-flow forcing data after January 2024 affects the completeness of the near-real-time simulation record

Provenance

Source

Australian Ocean Data Network

Collection Method

Results from version 2.0 of the 4km-resolution regional-scale hydrodynamic model (GBR4), forced with OceanMAPS, ACCESS-R, CSR tide model, and river data.

Time Range

Ran in near-real-time until January 2024.

Freshness

Daily updates until January 2024; metadata last updated March 2026.

Geography

Great Barrier Reef region.