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

GBR4_H2p0 is a 4km-resolution hydrodynamic model of the Great Barrier Reef, forced by ocean boundary data from OceanMAPS and atmospheric data from ACCESS-R. The model incorporated tidal constituents from the global CSR tide model and river flow data from 71 Queensland rivers. It ran in near-real-time with daily updates until January 2024, when critical river-flow data was lost due to sensor damage during the monsoon season.

Use Cases

• Simulating ocean currents and water circulation based on the 4km-resolution hydrodynamic model.
• Analyzing the impact of river discharge on reef systems based on data from 71 rivers.
• Studying tidal influences using the 22 tidal constituents derived from the global CSR model.
• Modeling near-real-time environmental conditions based on the daily update cycle.

Strengths

• Model ran in near-real-time with daily updates, providing timely data.
• Incorporates forcing data from multiple authoritative sources, including OceanMAPS, ACCESS-R, and the CSR tide model.
• Includes detailed river boundary data from 71 rivers, with measured data for 22 and estimates for 49.

Limitations

• Data collection was interrupted in January 2024 due to lost access to critical river-flow forcing data.
• 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 via data_gov_au.

Collection Method

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

Time Range

Ran until January 2024.

Freshness

Model updates ceased in January 2024; metadata last updated 2026-04-16.

Geography

Great Barrier Reef region.