Tor Harald Percival Bergeron


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Vilhelm Friman Koren Bjerknes (1862—1951) Norwegian geophysicist and meteorologist

cloud Physics

air mass



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(b. Godstone, England, 15 August 1891; d. Stockholm, 13 June 1977)

Swedish meteorologist, particularly noted for his work in cloud physics. He was a student of and collaborated with Vilhelm Bjerknes. He introduced the concept of air masses in 1928, studied frontal theory and the influence of upper-atmospheric processes on climate, and proposed the theory of precipitation later known as the Bergeron process.

Subjects: Meteorology and Climatology.

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