Congratulations to Dr. Hassan Al Sabea on earning his PhD in Water Sciences from the Université de Montpellier and the Lebanese University! Hassan’s outstanding work on “Modelling for Flood Mapping and Mitigation Using High-Resolution Topography and Citizen Science Data: Investigation in a Poorly-Gauged Basin” is not only a scientific achievement but also a vital contribution to enhance state-of-the-art flood management models through novel methods at HydroSciences Montpellier and National Center for Natural Hazards and Early Warning (NCNE) of CNRS Lebanon. We extend our sincere thanks and appreciation to the supervisor for their guidance and support: Dr. Chadi Abdallah, Dr. Marie-George Tournoud, Dr. Roger Moussa, and Dr. Nanee Chahinian. Well done, Dr. Hassan. Your hard work, perseverance, and excellence during the defense reflect a deep commitment to research that has led you to this remarkable achievement, despite all the difficult circumstances you faced along the way.