Jacob Bjerknes
Jacob Aall Bonnevie Bjerknes (November 2, 1897, Stockholm, Sweden – July 7, 1975, Los Angeles, California) was a Norwegian-American meteorologist. His father was the Norwegian meteorologist Vilhelm Bjerknes (1862–1951), one of the pioneers of modern weather forecasting.
He was part of a group of meteorologists led by Vilhelm Bjerknes developed the model that explains the generation, intensification and ultimate decay (the life cycle) of midlatitude cyclones, introducing the idea of fronts, that is, sharply defined boundaries between air masses.
Bjerknes was a support meteorologist when Roald Amundsen made the first crossing of the Arctic in the airship Norge in 1926.
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1897 births | 1975 deaths | National Medal of Science recipients | Norwegian-Americans | Meteorologists