Atmospheric Correction of Sentinel-2 data:
ACOLITE is a processor that has been developed at RBINS for higher resolution optical imagery collected by Sentinel-2. This processor performs the atmospheric correction by default using what is called the "dark spectrum fitting" approach. You will learn more about this during the classroom phase.
Please download ACOLITE from this page (at the bottom), depending on whether you are using a Windows, Linux or Mac machine.