Annual Intertidal Elevation And Exposure Maps For Australia

DEA Intertidal provides annual, continent-scale elevation and exposure data for Australia's intertidal zones at a 10-meter resolution. The product suite is derived from open-source Landsat and Sentinel-2 satellite archives by Digital Earth Australia. It supports monitoring of dynamic coastal regions.

Use Cases

• Predict coastal erosion by analyzing annual elevation changes in tidal flats and sandy beaches.
• Model storm surge inundation by integrating intertidal elevation data with bathymetric and topographic datasets.
• Support migratory shorebird studies by characterizing spatio-temporal exposure patterns of foraging grounds.
• Map coastal habitat extent by delineating the terrestrial-marine boundary for ecosystems like reefs and rocky shores.
• Investigate sediment transport by monitoring topographic changes across dynamic intertidal zones.

Strengths

• Continental-scale coverage for the entire Australian coastline.
• Annual products providing time-series data for change detection.
• 10-meter spatial resolution from Landsat and Sentinel-2 satellite sources.

Limitations

• Specific row/record counts and temporal range are not provided in the description.
• Data is limited to the Australian continent, not global.
• Product accuracy may be affected by cloud cover in satellite imagery.

Provenance

Source

Digital Earth Australia (DEA), part of Geoscience Australia.

Collection Method

Processed from open-source Landsat and Sentinel-2 satellite data archives.

Time Range

Annual coverage; specific start year not provided.

Freshness

Products are updated annually.

Geography

Covers the entire intertidal zone of the Australian continent.