eReefs GBR1 Diuron Dispersal: Great Barrier Reef Pesticide Modelling from 2016 to 2018

January 2016 to July 2018 simulation of the pesticide diuron dispersal in the Great Barrier Reef marine environment using a 1 km resolution eReefs model. The dataset quantifies diuron loads from catchment runoff, models transport with a 40-day half-life, and includes freshwater input from 16 rivers. It was produced by the Australian Ocean Data Network using the GBR-Dynamic SedNet catchment model and nested hydrodynamic models.

Use Cases

• Model pesticide fate and transport in marine waters based on simulated diuron loads and a 40-day half-life.
• Analyze river plume dynamics and freshwater influence based on conservative tracers for 16 rivers.
• Assess compliance with water quality guidelines based on simulated diuron concentrations.
• Study hydrodynamic forcing effects on pollutant dispersal based on wind, tides, and surface flux inputs.

Strengths

• Simulation covers a 2.5-year period from January 2016 to July 2018.
• Uses high-resolution 1 km nested marine model (GBR1) for detailed spatial analysis.
• Model validation involved comparison with observations at 11 monitoring sites.
• Incorporates realistic freshwater plume dynamics from 16 rivers.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Great Barrier Reef region.

Provenance

Source

Australian Ocean Data Network

Collection Method

Modelled using the GBR-Dynamic SedNet catchment model and the eReefs GBR1 hydrodynamic model forced by wind, tides, and atmospheric data.

Time Range

January 2016 to July 2018

Freshness

Last updated 2026-04-10 18:13:24.161182; freshness should be verified.

Geography

Great Barrier Reef marine environment