Royal Astronomical Society and was elected as a Fellow of the Royal Society of Edinburgh in 1953. In 1964, he was awarded the Copley Medal of the Royal Society and in 1965 the Symons Gold Medal of the Royal Meteorological Society. He was elected to the National Academies of Science of the United States, Norway, Sweden and Finland. He served as President of the London Mathematical Society during 1929–1931 and the Royal Meteorological Society 1932–1933. The lunar Crater Chapman is named in his honour, as is the Sydney Chapman Building on the campus of the University of Alaska Fairbanks. This building served as the first permanent home of the University of Alaska Geophysical Institute, and it now contains the Department of Computer Science and the Department of Mathematics and Statistics. The American Geophysical Union organises "Chapman Conferences," which are small, topical meetings intended to foster innovative research in key areas. The Royal Astronomical Society founded the Chapman Medal in his memory. Personal life In 1970, Chapman died in Boulder, Colorado, at the age of 82. References 1888 births 1970 deaths People from Eccles, Greater Manchester 20th-century English mathematicians Academics of the Victoria University of Manchester Alumni of the Victoria University of Manchester Alumni of the University of Salford Alumni of Trinity College, Cambridge British geophysicists De Morgan Medallists 20th-century British astronomers English physicists Fellows of The Queen's College, Oxford Fellows of the Royal Society Foreign associates of the National Academy of Sciences Members of the Lincean Academy Fellows of the American Physical Society Presidents of the Physical Society Presidents of the Royal Meteorological Society Recipients of the Copley Medal Recipients of the Gold Medal of the Royal Astronomical Society Royal Medal winners Sedleian Professors of Natural Philosophy University of Alaska Fairbanks faculty Presidents of the Royal Astronomical Society Plasma physicists Presidents of the International Union of Geodesy and Geophysics