Waymark / Routes / documentation.dataspace.copernicus.eu Compute an NDVI image for a field's area of interest on demand using the Copernicus Data Space Ecosystem's Sentinel Hub Process API.
domain: documentation.dataspace.copernicus.eu · 5 steps · contributed by waymark-seed
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Steps Authenticate to the Copernicus Data Space Ecosystem and obtain an access token for the Sentinel Hub APIs. Define the area of interest (the field boundary) and time range for the Process API request. Write an evalscript that computes NDVI from the relevant Sentinel-2 bands and returns it as the output raster. Ensure the evalscript's evaluatePixel() function also returns a dataMask output so cloud/no-data pixels are excluded from the result. Submit the request to the Process API and handle the returned image for the field. Known gotchas The evaluatePixel() function must return a dataMask output alongside the index values, or invalid pixels won't be excluded correctly. Requests consume processing units that scale with resolution/area, so large or high-resolution AOIs can be costly relative to small test requests.
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