Vilhelm Bjerknes (1862–1951), Norwegian physicist and meteorologist, son of Carl Anton
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Carl Anton Bjerknes (1825-1903), Norwegian mathematician and physicist
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Jacob Bjerknes (1897–1975), Norwegian-American meteorologist, son of Vilhelm
Over a fifty year time period, Bjerknes taught mathematics at the University of Oslo and at the military college.
Rossby came into meteorology and oceanography while studying under Vilhelm Bjerknes in Bergen in 1919, where Bjerknes' group was developing the concept of polar front, and University of Leipzig.
Born in Christiania, Bjerknes enjoyed an early exposure to fluid dynamics, as assistant to his father, Carl Anton Bjerknes, who had discovered by mathematical analysis the apparent actions at a distance between pulsating and oscillating bodies in a fluid, and their analogy with the electric and magnetic actions at a distance.
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Vilhelm Bjerknes became assistant to Heinrich Hertz in Bonn 1890–1891 and made substantial contributions to Hertz' work on electromagnetic resonance.