UDP to detect aquatic plants - #631
Open
firzaariany wants to merge 2 commits into
Open
Conversation
26 tasks
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Adds an algorithm that detects aquatic plants and algae in water bodies from Sentinel-2 L2A imagery as an openEO UDP, combining the Floating Algae Index (FAI), a water-plants index (red/red-edge based), and NDWI/moisture-based water body detection, with Braaten-Cohen-Yang cloud masking to filter out false positives.
The openEO process is adapted from the Aquatic Plants and Algae (APA) Custom Script Detector evalscript developed by the University of Girona. Water and vegetation are rendered on a blue-to-yellow scale — blue for clear water, turquoise/green/yellow for increasing aquatic vegetation density, and brown/purple for turbid, sediment-laden water — while land areas and clouds keep a brightened true-color appearance.
The openEO process is running on Copernicus Data Space over the spatial extent of Venice Lagoon, Italy on 2025-06-01 to 2025-08-31.