NESP TWQ Round 5 - Project 5.3 – Benthic light as ecologically-validated GBR-wide indicator for water quality: Drivers, thresholds and cumulative risks

The project is developing a water quality indicator based on benthic PAR (light penetrating to the seafloor). We have experimentally estimated irradiance thresholds for ecosystem health for the Great Barrier Reef and have developed a new remote sensing algorithm to estimate and map benthic irradiance throughout the GBR. This will feed into Reef Plan report cards, RIMReP monitoring, and assessments of drivers of cumulative risks. This project extension will allow us to: work with stakeholders to embed the products into their workflows; improve the remote sensing algorithm with seasonal and regional cloud corrections; and evaluate an additional benthic light product based on the eReefs models to complement the remote sensing product.