Dr. Roederer has a background in high-energy physics, cosmic rays and magnetospheric physics. His work on numerical modeling led to a quantitative understanding of the earth's radiation belts. He also has conducted research, taught courses, and written a book on psychoacoustics and neuropsychology. Dr. Roederer was Director of the Geophysical Institute from 1977 to 1986, and Dean of the College of Environmental Sciences from 1979 to 1982. His research interest centers on magnetospheric plasma physics of Earth and Jupiter. He is a fellow of the American Association for the Advancement of Science and the American Geophysical Union, corresponding member of the Academies of Science of Argentina and Austria, Member of the Third World Academy of Sciences, Past president of the ICSU Committee on Solar-Terrestrial Research, and an accomplished organist. He served as Chairman of the United States Arctic Research Commission from 1987 to 1991.