- Bjerknes , Jacob Aall Bonnevie
- (1897–1975) Norwegian meteorologistBjerknes was the son of Vilhelm Bjerknes (1862–1951), a theoretical physicist who developed some of the first mathematical models of atmospheric and oceanic motions. Jacob followed the example of his father in studying meteorology. Born in the Swedish capital, Stockholm, he was educated at the University of Oslo, where he obtained his PhD in 1924, and worked at the Geophysical Institute at Bergen with his father from 1917, remaining there when Vilhelm moved to Oslo in 1926.During World War I Bjerknes worked with his father in establishing a series of weather observation stations throughout Norway. From the data collected, and working with other notable meteorologists, including Tor Bergeron, they developed their theory of polar fronts, also known as the Bergen theory or thefrontal theory. They had established that the atmosphere is composed of distinct air masses possessing different characteristics and applied the term ‘front’ to the boundary between two air masses. The polar front theory showed how cyclones (low-pressure centers) originated from atmospheric fronts over the Atlantic Ocean where a warm air mass met a cold air mass.In 1939 Bjerknes moved to America and, unable to return to occupied Norway, became professor of meteorology at the University of California where he continued to study atmospheric circulation. In 1952 he became one of the first to use space techniques for meteorological research when he used photographs of cloud cover taken by research rockets for weather analysis.
Scientists. Academic. 2011.
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Jacob Aall Bonnevie — (1838 1904) was a Norwegian politician for the Conservative Party. He was Minister of Education and Church Affairs 1889 1891.He was the father of Kristine Bonnevie, a Norwegian biologist. Another daughter, Honoria, married the meteorologist… … Wikipedia
Bjerknes, Jacob — Bjerknes , Jacob Aall Bonnevie … Scientists
Bjerknes Jacob — Jacob Bjerknes Jacob Aall Bonnevie Bjerknes Naissance 2 novembre 1897 Stockholm (Suède) Décès 7 juillet 1975 Los Angeles (États Unis) Nationalité Américaine Champs Météorologie … Wikipédia en Français
Jacob Bjerknes — Pour les articles homonymes, voir Bjerknes. Jacob Aall Bonnevie Bjerknes Naissance 2 novembre 1897 Stockholm (Suède) Décès 7 juillet 1975 Los Angeles (États Unis) Nationalité Américaine … Wikipédia en Français
BJERKNES J — NORWAY (see also List of Individuals) 2.11.1897 Stockholm/S 7.7.1975 Los Angeles/USA Jacob Aall Bonnevie Bjerknes was the nephew of Carl Anton (1825 1903) and the son of Vilhelm (1862 1951). Bjerknes made his studies at the Oslo University and… … Hydraulicians in Europe 1800-2000
Jacob Bjerknes — Jacob Aall Bonnevie Bjerknes (November 2, 1897, Stockholm, Sweden ndash; July 7, 1975, Los Angeles, California) was a Norwegian American meteorologist. His father was the Norwegian meteorologist Vilhelm Bjerknes (1862 ndash;1951), one of the… … Wikipedia
Jacob Bjerknes — Jacob Aall Bonnevie Bjerknes (* 2. November 1897 in Stockholm; † 7. Juli 1975 in Los Angeles) war ein norwegisch amerikanischer Meteorologe. Sein Vater war Vilhelm Bjerknes, sein Großvater mütterlicherseits war Jacob Aall Bonnevie. Bjerknes war… … Deutsch Wikipedia
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