Derived data product DEA Intertidal Elevation
Model the unseen undersea
Digital Earth Australia (DEA) Intertidal Elevation maps Australia's intertidal zone — the area between the highest tide mark and the lowest — in 3D, providing 25 m resolution elevation data for our sandy beaches, tidal flats, rocky shores and reefs
With an understanding of intertidal zone boundaries, researchers can distinguish between tidal-induced and other long-term change
Australians live, swim and play in more than 50,000 km of coast, and intertidal zones are a first line of defence against coastal erosion and storm surges
Why map intertidal elevation?
Imagery for impact The “Z” of where land meets the sea
We’ve created the first 3D model of Australia’s entire coastline, providing new information for tsunami preparedness, storm surge risk management, current modelling and ecological habitat mapping
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.
'Between the tides: Modelling the elevation of Australia's exposed intertidal zone at continental scale’