eReefs GBR4 Hydrodynamics v4.0: 4km Great Barrier Reef Model Results

eReefs GBR4 Hydrodynamics v4.0 provides results from a 4km-resolution regional-scale hydrodynamic model of the Great Barrier Reef. The model is forced with atmospheric data from BARRA, ocean boundaries from BRAN2020, the global TPXO tide model, and river data from 64 catchment models. This hindcast simulation, complete and named GBR4_H4p0_ABARRAr2_OBRAN2020_FG2Gv3_Dhnd, succeeded the GBR4_H2p0 model as the best available for its timespan.

Use Cases

• Simulating ocean currents and water circulation based on the 4km-resolution hydrodynamic model.
• Analyzing tidal influences on the reef system based on the integrated global TPXO tide model.
• Studying freshwater input and river plume dynamics based on data from 64 river boundaries.
• Validating other regional climate or ecological models against this high-resolution hindcast.

Strengths

• Model uses high-resolution atmospheric forcing from the Bureau of Meteorology's BARRA reanalysis.
• Integrates boundary conditions from multiple authoritative sources, including BRAN2020 and data from 64 rivers.
• Described as the successor and 'best available' eReefs hydrodynamic model results for its timespan.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Available file formats (PNG, HTML) suggest the primary data may be visual or summary outputs rather than raw model arrays.

Provenance

Source

Australian Ocean Data Network

Collection Method

Output from a 4km-resolution hydrodynamic model (GBR4) forced with multiple reanalysis and observational datasets.

Time Range

Hindcast mode; specific temporal coverage is not stated.

Freshness

Last updated 2026-06-04 06:17:26.441487; freshness should be verified.

Geography

Great Barrier Reef region.