Hi there, I’m having trouble figuring out the correct way to convert Digital Numbers (DN) to surface reflectance for Sentinel-2 images. I downloaded images from the Copernicus Data Space covering the period from 2018 to 2023, and I’m trying to create a mosaic from them. Because of the introduction …

Dear @eoasker , What is important is the processing baseline of your product of interest, not necessarly its date of acquisition as the product may have been reprocessed with a newer processing baseline (e.g. Collection-1 products). Thanks @Marco_EOM for your inputs, the FAQ #4 has been updated wit…

Get Sentinel-2 Reflectance values from DN for mosaicking

Optical Toolbox sen2cor

Marco_EOM April 11, 2025, 4:20pm 2

Have a look at the FAQ number 4.
The “radiometric offset has been introduced in order to preserve/provide negative radiometric values.”