eReefs GBR1 Hydrodynamics v2.0: 1km Great Barrier Reef Model

Results from version 2.0 of the 1km-resolution shelf-scale hydrodynamic model of the Great Barrier Reef (GBR1). The model ran in near-real-time mode, updating daily, until January 2024 when sensor damage during the monsoon season halted operations. It is nested within a 4km-resolution model and incorporates atmospheric and river-flow data from Australian agencies.

Use Cases

• Simulating ocean currents and water circulation based on the 1km-resolution hydrodynamic model.
• Analyzing the impact of river discharge on reef systems based on measured flow data from gauging stations.
• Studying near-real-time environmental conditions based on the model's daily update cycle.
• Validating broader-scale ocean models based on the nesting within the 4km-resolution GBR4 model.

Strengths

• High spatial resolution of 1 kilometer for detailed shelf-scale analysis.
• Incorporates multiple authoritative data sources, including Bureau of Meteorology atmospheric data and QLD DNRM river-flow data.
• Model was operational in a near-real-time mode with daily updates.

Limitations

• Data collection 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 via data.gov.au.

Collection Method

Output from the eReefs GBR1_H2p0 hydrodynamic model simulation.

Time Range

Model ran until January 2024.

Freshness

Model updates ceased in January 2024; metadata last updated 2026-06-05.

Geography

Great Barrier Reef shelf region.