I am working with Sentinel-2 Surface reflectance data in Google Earth Engine and exporting a mutli-band composite (spectral bands + vegetations indices) for further analysis in ArcGIS Pro.
My workflow is roughly as follows:
- Cloud masking using SCL band
- Filtering by date and cloud percentage
- Creating a median composite
- Computing multiple indices (NDVI, EVI, SAVI, NDWI, etc.)
- Stacking all bands into a final composite
- Exporting using Export.image.toDrive()
Here is a simplified version of my export:
Export.image.toDrive({
image: finalComposite,
description: 'ECA_2025_S2',
region: roi,
scale: 10,
maxPixels: 1e13
});Problem
The export produces two GeoTIFF files instead of one, even though I expected a single image.
When I load both rasters into ArcGIS Pro, I notice a very thin gap (1–2 pixels) between the two images.
This looks similar to a seamline or pixel alignment issue.
How can I ensure a single exported image with no gap or misalignment between tiles?
Any suggestions or best practices for handling this in GEE or ArcGIS Pro?
