So, my wonder is whether haze removal is processed during the transformation from L1C TOA to L2A BOA data?
It not, could somebody give me some advices? I notice some papers about haze removal were conducted on DN values before atmosphere correction (Makarau, Aliaksei, et al. “Haze detection and removal in remotely sensed multispectral imagery.” IEEE Transactions on Geoscience and Remote Sensing 52.9 (2014): 5895-5905.).
So I am confused how should I do once I get the Sentinel-2 L1C or L2A images.
This discussion requires urgent clarification and I apologize that I see this discussion only today.
Haze removal is an option available in ATCOR and in its version migrated to Python - PACO. It was never implemented in Sen2Cor. It think it was mentioned in the Sen2Cor ATBD from 2012 due to the heritage of Sen2Cor to ATCOR. This Sen2Cor ATBD was written on basis of ATCOR manual. We removed this misleading section on Haze removal in the current Sen2Cor ATBD.