Satellite remote sensing currently offers medium-resolution (10 to 15 m) images at high temporal frequency (~5 days between images) and can provide low-cost shoreline data to coastal engineers, managers and scientists. This is often the only source of information on past shoreline changes at locations where no field measurements are available.
The CoastSat toolkit, opens in a new window enables the non-expert user to extract shorelines from Landsat 5, Landsat 7, Landsat 8, Landsat 9 and Sentinel-2 images. The ...
Satellite remote sensing currently offers medium-resolution (10 to 15 m) images at high temporal frequency (~5 days between images) and can provide low-cost shoreline data to coastal engineers, managers and scientists. This is often the only source of information on past shoreline changes at locations where no field measurements are available.
The CoastSat toolkit, opens in a new window enables the non-expert user to extract shorelines from Landsat 5, Landsat 7, Landsat 8, Landsat 9 and Sentinel-2 images. The shoreline detection algorithm implemented in CoastSat combines a sub-pixel border segmentation and an image classification component, which refines the segmentation into four distinct categories such that the shoreline detection is specific to the sand/water interface. The horizontal accuracy of the time-series of shoreline position is ~10 m. More details can be found in "CoastSat: A Google Earth Engine-enabled Python toolkit to extract shorelines from publicly available satellite imagery, opens in a new window".
CoastSat website
The CoastSat website, opens in a new window provides an interactive platform to access satellite-derived shorelines obtained with CoastSat at beaches around the Pacific Rim, including Australia, California, Mexico and Hawaii.
A couple of examples are shown below for Stockton Beach in NSW and the Tweed River Entrance bypassing system:
Additional capabilities in our satellite remote sensing unit include:
Visit the CoastSat website at coastsat.wrl.unsw.edu.au, opens in a new window and explore the coast!
