Is Sen2Cor output Rhow or Rrs?

Optical Toolbox sen2cor
3

Dear @lorenajuca,

Thank you for your query.

First of all, please note that you could find in section 1.1 of the L2A ATBD the following restriction that also applies to Sen2Cor version 2.11:

  1. The current processing baseline and processor version are not designed for
    applications over water or on coastal regions. The processor doesn’t contain
    modules for correction of water surface effects like sunglint. Both Aerosol
    optical thickness (AOT) and Water vapour (WV) are not estimated over
    water surface. However, the current implementation does not prevent an
    application over water using AOT and WV from the nearby land surface and
    doing without correction of surface effects.

You may find this information useful too.

If you are still interested making comparison with Sen2cor results and other AC processors over water you need to divide Sen2cor results by pi to obtained a result similar to Remote sensing reflectance (Rrs).

We hope you find these suggestions useful.

Cheers,
@Sen2cor_dev_team