This satellite image shows Princess Charlotte Bay in far North QLD on 9 February 2007. Sediment, brown and green against the blues that show 'normal' reef waters.

Princess Charlotte Bay in far North Queensland, 9 February 2007, with brown and green sediment against the blue that shows 'normal' reef waters.

Great Barrier Reef under threat

In this seven-minute podcast, Dr Arnold Dekker, from CSIRO’s Wealth from Oceans Flagship, discusses the threat to the Great Barrier Reef from flood run off. (7:23)

  • 22 February 2007 | Updated 23 November 2011

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A stunning series of satellite imagery of Australia’s Great Barrier Reef released by CSIRO shows for the first time visual confirmation of the theory that sediment plumes travel to the outer reef, and beyond.

In this podcast, Dr Dekker talks about the images and how they challenge conventional thought about sediment and its effect on the Reef.

Download images of sediment plumes flowing towards the Great Barrier Reef.

Read more about CSIRO imagery shows outer Great Barrier Reef at risk from river plumes (Media release 22 Feb 07).