Good afternoon. I am working on an article that relates MPPT algorithms with solar radiation, the problem is that I need the concrete data of one day (30 and 31 August 2018) in the city of Popayan - Cauca - Colombia. Someone knows of some worldwide database to be able to find this specific data, I have been looking for days but I can't find anythig. THANK YOU VERY MUCH AND A GREAT NEXT YEAR