Dataset and software for "Massive increase of intertidal seagrass coverage in a large estuarine system revealed by four decades of Landsat imagery", by Araújo et al. (2025). doi: https://doi.org/10.1016/j.rsase.2025.101623

Dataset and example of GEE code for "Massive increase of intertidal seagrass coverage in a large estuarine system revealed by four decades of Landsat imagery", by Araújo et al. (2025). doi: https://doi.org/10.1016/j.rsase.2025.101623 The dataset, located in the "data" folder, consists of shapefiles representing the spatial distribution of seagrass (eelgrass, Zostera marina). These shapefiles are organized into ZIP archives grouped by subregion (BSI, MAN, RIB, and IVE). Each shapefile is named according to its subregion followed by the survey year. Additionally, for each subregion, there is a shapefile named "xxx_emerged" (where "xxx" corresponds to the subregion). This file represents the intertidal area considered in the study, and all shapefiles within that subregion are spatially constrained by it. The provided GEE code demonstrates the processing workflow applied to the IVE subregion. DISCLAIMER: This dataset was generated using Landsat imagery with a spatial resolution of 30 meters and should be used with caution. Users should be aware that small classification errors are expected, as the regions exhibit significant intrapixel variability (e.g., presence of macroalgae, bare sediment).