Master of Science, University Umeå, 1970. Doctor of Philosophy, U.Umeå, Umeå & Kiruna, 1977.
Staff scientist Swedish Institute Space Physics, Kiruna, Sweden, 1977—1988, professor Kiruna & Umeå University, Sweden, since 1988. Director Swedish Institute Space Physics, 1994—2003, head, solar-terrestrial physics program, since 2003.
Member of Swedish Physical Society, Swedish Geophysical Society (board member 1988), European Geophysical Union, American Geophysical Union, International Academy Astronautics, Swedish Royal Academy of Sciences (member, astronomy and space science 1990).
Married Helena E. Johansson, December 20, 1969. Children: Lisa E. M. Lagerwall, Britta K. S.