Master of Science, University Hamburg, Germany, 1968. Doctor of Philosophy, University Hamburg, Germany, 1971. Habilitation, University Hamburg, Germany, 1989.
Research assistant German Weather Service, Hamburg, Germany, 1968—1969, Max Planck Institute Aeronomy, Lindau, 1969—1972. Post doctoral fellow University Hamburg, 1973—1980, faculty member, 1980—1990. Senior scientist Max Planck Institute Meteorology, since 1991.
Visiting scientist National Center Atmospheric Research, Boulder, Colorado, 1971.
Married Ilse Frieda Roeckner, January 30, 1943. Children: Katja, Philip.