A Secchi disc being lowered into turbid water
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Dr Renee Gruber (Australian Institute of Marine Science), Australian Institute of Marine Science
Dr Renee Gruber (Australian Institute of Marine Science), Australian Institute of Marine Science
Description
A Secchi disc with alternating black and white quarters is lowered into turbid flood-waters in the Great Barrier Reef Marine Park during February 2019. Secchi discs are a simple and reliable way to measure the depth to which light penetrates the water.