Sub setting before atmospheric correction by sen2cor

[marpet]

That’s not possible. You need to process the whole scene first and do the subset afterwards.

This has been already discussed here:

Subset as input for SEN2COR

Hello. Thank you. As far as I could understand atmospheric correction must be applied for 60 m bands, then to 20 m bands and at last for 10 m bands. I could retrieve 20 m bands for atmopheric correction but when I try to apply SEN2COR for 10 m, it presents MemoryError and no bands with 10 m resolution are retrieved. What can I do to retrieve 10 m resolution bands? I do appreciate any insight… Thank you. Claudia

and here:

Applying Sen2cor on a S2 subset?

Hi, you can not apply sen2co to a subset of a S2 data product. This because sen2cor can only work with S2 data organized in the .SAFE format , while a S2 subset can be saved for example in a .DIM format but it is not possible yet to save a subset with the original S2 format. What you can do is only to process the full S2 product with sen2cor and only after that you can define your subset with atmospheric correction. I hope I didn’t sat anything wrong @marpet @obarrilero

I’m not even sure that sen2cor could handle a smaller S2 L1C file, even if it is properly written as SAFE format.