Passive River Tracers for 35 Great Barrier Reef Rivers

Featuring passive river tracer results for 35 significant rivers, derived from the eReefs 4km-resolution hydrodynamic model (GBR4). The model is forced with atmospheric, ocean boundary, tide, and river flow data from sources like BARRA and BRAN2020. It is the best available eReefs river tracer model for its timespan, succeeding the GBR4_H2p0_Rivers model.

Use Cases

• Analyze passive tracer dispersion patterns from 35 rivers to model pollutant transport for the Reef 2050 Water Quality Improvement Plan.
• Correlate river tracer results with stream flow and temperature data from the G2Gv3 and Source catchment models to understand freshwater plume dynamics.
• Validate the eReefs 4km-resolution hydrodynamic model outputs using hindcast mode results for the Great Barrier Reef region.
• Assess the impact of atmospheric forcing from the BARRA reanalysis on simulated river tracer concentrations in coastal waters.

Strengths

• Model results are derived from a 4km-resolution regional-scale hydrodynamic model, providing detailed spatial data.
• Includes data for 35 rivers of significance to the Reef 2050 Water Quality Improvement Plan.
• Model is forced with multiple high-quality data sources, including BARRA atmospheric reanalysis and BRAN2020 ocean boundary data.
• The dataset represents a complete hindcast model run, succeeding a previous version as the best available for its timespan.

Limitations

• The dataset is provided in HTML and PNG formats, which are not standard for quantitative analysis and may require data extraction.
• Specific temporal coverage, row count, and column details are not provided in the input, limiting precise assessment of scope.
• River boundaries are based on a combination of two catchment models, which may introduce inconsistencies in data representation.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Derived from version 4.0 of the eReefs 4km-resolution regional-scale hydrodynamic model (GBR4), forced with BARRA atmospheric data, BRAN2020 ocean boundaries, TPXO tide model, and river data from G2Gv3 and Source catchment models.

Time Range

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Freshness

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Geography

Great Barrier Reef region, focusing on 35 significant rivers.