I’m having trouble understanding how the processing for the L1 to L2 in OLCI marine products works. I’ve read the User Handbook Manual and it states that the processing in made in parallel using the BAC for Case 1 waters and the AAC (C2RCC) for Case 2/complex waters. I’ve downloaded the L1 and L2 images for a certain AOI and I extracted pixel from the L2 downloaded and from the L2 obtained by applying the C2RCC (Optical - Thematic Water Processing - C2RCC - OLCI) on L1. Both extraction do not show the same values… I downloaded the image data set from the EUMETSAT website. Do they use a different algorithm for AC?