Professor Roger H. Charlier (1921–2018)

An obituary of professor Roger H. Charlier who died on Sep 16, 2018 is presented. Professor Charlier meant a lot to the lives of students and colleagues around the world. Roger is remembered for the many years of teaching at various universities, especially his enthusiasm for taking hundreds of students on field trips to inculcate an understanding for the need to protect coastal oceans while giving them an international perspective and respect about the much larger world in which they lived. Professor Charlier's well-known multilingualism served him well in consolidating relationships with many confr` eres and collaborators in his areas of expertise. But besides the professional continuous links, it led to a long friendship offered by a man of sound professionalism, exhaustive general culture, and vast personal experience in various matters.