Royal Meteorological Society - Symons Gold Medal (1940) American Geophysical Union - William Bowie Medal (1945) Knight 1st Class of the Royal Norwegian Order of St. Olav (1947). Swedish Society for Anthropology and Geography - Vega medal (1958) World Meteorological Organization - International Meteorological Organization Prize (1959).[9] American Meteorological Society - Carl-Gustaf Rossby Research Medal (1960) National Medal of Science (1966)