News DEA Coastlines 2.0 now available

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.

DEA Coastlines version 2.0 is available this March, marking a major version update and adding another year of data to the product timeseries.

Updates include:

• Added annual shoreline data for 2021.
• Inclusion of Landsat 9 imagery to provide additional satellite data from late 2021 onwards.
• The use of a new and more flexible global tidal model (FES2014). This model produces accurate tide modelling across Australia and globally.
• Improved tools for understanding and navigating the data quality of each individual annual shoreline and rate of coastal change.

New offshore islands and reefs added

The updated DEA Coastlines also includes data for several offshore islands and exposed reefs not covered by previous versions, most notably, in the Great Barrier Reef, the Torres Strait and northwest Western Australia.

See decades of coastal change

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 to 2021.