This study evaluated a satellite-based approach for estimating intertidal elevation from
repeated observations of surface wetness and corresponding water levels. Building
from methods developed by Geoscience Australia and Digital Earth Australia, the
workflow was tested in San Leandro Bay using Landsat, Sentinel-2, and PlanetScope
imagery. Sensitivity testing evaluated imagery source, water-level information, temporal
sampling, cloud screening, NDWI threshold, and alternative methods for representing
the NDWI-water-level relationship.