Oh, sorry my answer was misleading. I only looked at the error message when replying and haven’t noticed that it is about processing with sen2cor.
Regarding you question:
- This depends on what you want to do afterwards. But in most cases, it is easier to work with a resampled product.
- Sen2cor does not provide resampled outputdata. What the resolution argument means is well explained here: Sen2Cor output resolution - #6 by bdpg
- Sen2cor outputs are all at 10m if you provide the
--resolution 10
argument. Nut then you only have the 4 bands which are already in the L1C at 10m resolution.