Workflow optimisation

Hi All,

I have a question regarding the appropriate processing steps; I want to do a BOA Correction for a certain area. How to?

  1. Sentinel-2A product --> Resampling needed (for subset) --> Subset --> Sen2Cor (BOA)
  2. Sentinel-2A product --> Sen2Cor (BOA) --> Resampling needed (for subset)–> Subset

Are both ways appropriate? Creating a subset before doing the BOA Correction seems faster to me but as I figured out right now, resampling for all bands takes some time as well…

Thank you and best regards!


If you want to apply the atmospheric correction using Sen2Cor, it should be the first step because the input of Sen2Cor must be the original Sentinel-2 SAFE product.

You mean the 2nd or?

Sentinel-2A SAFE product --> Sen2Cor BOA (atmospheric correction) --> resampling --> subset

Yes. As you said in your first post, if it was possible to apply the atmospheric correction to a subset, the first one would be faster. But it is not possible, so you should apply the second processing chain.

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