Derived data product DEA Coastlines
See decades of coastal change
A groundbreaking data product, DEA Coastlines combines satellite data with tidal modelling to map the typical location of the Australian coastline at mean sea level for every year since 1988. Resulting shorelines and detailed rates of change show how beaches, sandspits, river mouths, and tidal flats have grown and eroded over time
The product draws on nearly 58,000 independent measurements to ensure accuracy, supported by local councils, state governments, citizen scientists and academia
Coastline data is accurate down to 10 m — showing change as small as 2.9 m in some locations
Why track changing coastlines?
Imagery for impact The growing sands of Twilight Cove
Get a snapshot of the stories revealed by DEA Coastlines, including how one remote and spectacular Western Australian beach has grown by more than 500 m since 1988.
Seminar: Time and Tide
Meet Digital Earth Australia’s Dr Robbi Bishop-Taylor in this seminar on mapping Australia's coastal zone through time and space with DEA data.
Seminar: The evolution of DEA Coastlines
Head of the DEA Aquatic Product Development team, Dr Stephen Sagar, gives a preview into the development of the DEA Coastlines dataset.
Our suite of coastal products
DEA Coastlines, DEA Intertidal Extents, DEA Intertidal Elevations, and DEA High and Low Tide imagery provide new perspectives on critical coastal environments.