Prof. DSc Hernani Borisov Spiridonov (28 July 1935 – 21 June 2018). Рrominent Bulgarian Geomorphologist, Geotectonist and Specialist in Remote Sensing on the Earth

This paper presents the biography of the scientist Professor DSc Hernani Borisov Spiridonov. July 2020 marks the 85th anniversary of his birth. His scientific achievements are related to geomorphology, geotectonics and the development remote sensing methods, He is one of the founders of the scientific major Remote Sensing of the Earth from Space in Bulgaria