GBR1_H2p0_Rivers: Great Barrier Reef River Tracer Model Results

Great Barrier Reef passive river tracer results are derived from the eReefs GBR1 version 2.0 shelf-scale hydrodynamic model at 1km resolution. The model, named GBR1_H2p0_Rivers, operated in near-real-time with daily updates until January 2024, when sensor damage from the 2023/24 monsoon season halted river-flow data input. This dataset provides simulated outputs for tracking riverine influence on the reef system.

Use Cases

• Tracking river plume dispersion and influence on reef water quality based on passive tracer simulations.
• Calibrating and validating hydrodynamic models of the Great Barrier Reef shelf using the 1km-resolution outputs.
• Assessing the impact of terrestrial runoff and flood events on marine ecosystems using the time-series model data.
• Studying the interruption of near-real-time environmental monitoring due to sensor damage from extreme weather events.

Strengths

• Provides outputs from a specific, high-resolution (1km) shelf-scale hydrodynamic model (GBR1 v2.0).
• Model operated with a near-real-time, daily update cycle, suggesting temporal granularity for the period it was active.
• Dataset is documented under a formal simulation naming protocol (eReefs GBR1_H2p0_Rivers), indicating structured provenance.

Limitations

• Critical metadata such as column names, row count, data size, license, and author are explicitly listed as unknown or 'None' across all sources.
• The primary data collection forcing (river-flow) was interrupted in January 2024 due to sensor damage, limiting the dataset's temporal continuity and current utility.
• Sources show a minor conflict in the 'last updated' metadata (2026-04-26 vs. 2026-03-25), though this may reflect platform synchronization rather than data updates.

Provenance

Source

CSIRO Marlin Data Catalogue, associated with the eReefs project.

Collection Method

Derived from passive river tracer results of the GBR1 version 2.0 hydrodynamic model simulation.

Time Range

Model ran until January 2024; specific start date is not provided.

Freshness

Last updated metadata indicates 2026-04-26, but this may refer to platform cataloging, not new model data after January 2024.

Geography

Great Barrier Reef, Australia (shelf-scale).