Sediment Over the Great Barrier Reef •

Last update: November 15th, 2019 at 11:00 am

With high winds, a powerful storm surge, and torrential rains, Cyclone Yasi churned the waters of the Coral Sea off Australia’s Queensland coast. On February 4, 2011, as the clouds began to clear, evidence of the storm’s violence lingered in the water. The normally clear, shallow water of the Great Barrier Reef was clouded with sediment brought to the surface by the cyclone.

Light reflects off the bright-colored sediment, turning the ocean electric blue. Sections of the reef—well-defined shapes that are greener than their surroundings—are visible amid the clouded water. The section of reef shown here is near Whitsunday Island National Park. The large image, which shows a wider area, reveals sediment in the water along much of the coast.

Credit: NASA image courtesy the MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.

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