GBR1_H2p0_B3p2_Cfur_Dnrt: Retired Great Barrier Reef Biogeochemistry Model

Daily near-real-time model results from January 2024 and earlier for the Great Barrier Reef. This dataset contains outputs from version 3.2 of a 1km-resolution biogeochemistry and sediments model, forced by hydrodynamics and river inputs. The dataset was officially retired in February 2026 due to a model error producing unrealistically high Chlorophyll-a levels, and its authors advise discontinuing all use.

Use Cases

• Analyzing historical model performance and error propagation in shelf-edge and reef matrix areas.
• Comparing retired model outputs (GBR1) against newer validated datasets (e.g., GBR4) for methodological studies.
• Studying the impact of lost river-flow forcing data after the 2023/24 monsoon season on model continuity.

Strengths

• Provides high-resolution (1km) regional-scale model outputs for a critical marine environment.
• Ran in near-real-time mode with daily updates until its operational end in January 2024.
• Follows a documented simulation naming protocol (eReefs GBR1_H2p0_B3p2_Cfur_Dnrt), offering traceability.

Limitations

• Contains a critical scientific error leading to abnormally high and unrealistic Chlorophyll-a values, rendering it unreliable for primary research.
• Metadata for columns, size, row count, license, and author is unavailable across all platform entries.
• Model execution was halted due to lost access to critical river-flow forcing data, limiting its temporal completeness.

Provenance

Source

Australian Ocean Data Network (AODN), via the eReefs modeling initiative.

Collection Method

Output from a coupled regional-scale biogeochemistry and sediments model (version 3.2) forced by a hydrodynamic model.

Time Range

Until January 2024 (daily updates until model halt).

Freshness

Last metadata update was 2026-04-16, but the dataset itself is retired and contains pre-2024 data.

Geography

Great Barrier Reef region, Australia.