The satellite-based SARAH data sets ("Surface Solar Radiation data set - Heliosat") provide information on surface #Radiation & #Sunshine duration and are therefore used, for example, in many applications in the field of #RenewableEnergy.

With SARAH-3, a new version is now available that covers the period from 1983 to today (produced within #EUMETSAT's #CMSAF): https://www.cmsaf.eu/EN/Highlights/Dokumente/News_38.html

There is the possibility to learn details in an online course: https://training.eumetsat.int/course/view.php?id=484