eReefs GBR1 Diuron Dispersal: Great Barrier Reef Pesticide Modelling, 2016-2018

A 1 km resolution marine model quantifies the dispersal of the pesticide diuron into Great Barrier Reef waters from 16 rivers. The simulation period spans from January 2016 to July 2018, using a hydrodynamic model forced by wind, tides, and waves to calculate hourly diuron fluctuations in each model cell. This dataset was produced by the Australian Ocean Data Network to assess pesticide loads against water quality guidelines.

Use Cases

• Modeling pesticide transport dynamics based on hydrodynamic fluxes and a 40-day half-life parameter.
• Assessing river plume contributions to coastal pollution based on unique conservative tracers for 16 rivers.
• Evaluating water quality guideline exceedances for diuron based on simulated concentrations.
• Analyzing the impact of agricultural and urban runoff based on catchment model inputs.

Strengths

• High-resolution (1 km) nested marine model for detailed spatial analysis.
• Simulation covers a 2.5-year period from January 2016 to July 2018.
• Model incorporates realistic plume dynamics from 16 individual river sources.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing solely on the Great Barrier Reef.

Provenance

Source

Australian Ocean Data Network

Collection Method

Modelled using the GBR-Dynamic SedNet catchment model and the nested eReefs GBR1 marine model.

Time Range

January 2016 to July 2018

Freshness

Last updated 2026-06-04 10:16:57.012486; freshness should be verified.

Geography

Great Barrier Reef marine environment