I was trying to implement this paper on detecting methane plumes using Sentinel 2. The paper uses L1C product.
I wanted to eliminate the effects of water vapor, so I tried to identify the plumes using Sentinel 2 L2A product. The results I got were quite different from what I was expecting.
I wanted to understand what all corrections get applied as a part of L1C to L2A conversion? Are these corrections applied to just to eliminate / reduce effects of water vapor or for other trace gases like Methane and CO2 as well?
I even had a look at sen2cor, and wanted to understand if only selected corrections can be applied to L1C product to convert it to L2A?
Thanks in advance.