I have downloaded the L2 WFR products for deriving the water quality parameters, however, I found that
the reflectances of many pixels are negative. I supposed that this problem was caused by improper atmospheric correction (AC), and I want to change the AC method to the AAC method.
So I downloaded the corresponding L1 EFR products and performed AC using the C2RCC toolbox, I want to make sure that whether the AC method used in C2RCC is the AAC rather than BAC.
In addtion, I found that the C2RCC tbx can output the remote sensing reflectance, but it is denoted by “rrs”, as far as I know, the remote sensing reflectance (above-surface ) is usually represented by the “Rrs”, while the “rrs” denotes the below-surface remote sensing reflectance. Thus, whether the output remote sensing result is the below-surface remote sensing reflectance?