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Topic: Vilhelm Bjerknes


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In the News (Thu 17 Dec 09)

  
  Jacob Bjerknes biography
Jacob Aall Bonnevie Bjerknes was born in Stockholm, Sweden, in 1897.
Vilhelm Bjerknes returned to Norway in 1918 and founded a geophysical institute at the University of Bergen, where he organized an analysis and forecasting branch which would evolve into a weather bureau by 1919.
Bjerknes, then head of the department of meteorology at UCLA, was an early advocate of using photography from rockets to image atmospheric weather patterns, and he would later help usher in the use of satellites for the same purpose.
www.agu.org /inside/awards/bjerknes.html   (564 words)

  
 Bjerknes, Vilhelm Frimann Koren - HighBeam Encyclopedia   (Site not responding. Last check: 2007-10-16)
BJERKNES, VILHELM FRIMANN KOREN [Bjerknes, Vilhelm Frimann Koren], 1862-1951, Norwegian physicist and pioneer in modern meteorology.
Bjerknes was professor at the universities of Oslo (1907-12, 1926-32); Leipzig (1912-17); and Bergen (1917-26), where he set up a geophysical institute.
Jakob Bjerknes served as professor of meteorology at the Univ. of Bergen (1931-40) and at the Univ. of California (from 1940).
www.encyclopedia.com /doc/1E1-bjerknes.html   (238 words)

  
 Highbeam Encyclopedia - Search Results for Vilhelm
Thomsen, Vilhelm THOMSEN, VILHELM [Thomsen, Vilhelm], 1842-1927, Danish philologist.
Bjerknes, Vilhelm Frimann Koren BJERKNES, VILHELM FRIMANN KOREN [Bjerknes, Vilhelm Frimann Koren], 1862-1951, Norwegian physicist and pioneer in modern meteorology.
Gade, Niels Vilhelm GADE, NIELS VILHELM [Gade, Niels Vilhelm], 1817-90, Danish composer.
www.encyclopedia.com /SearchResults.aspx?Q=Vilhelm&rc=10&fh=6&fr=11   (563 words)

  
 Vilhelm Bjerknes - Universitetet i Oslo
Han ble svært gammel - Vilhelm Friman Koren Bjerknes ble født i 1862 og døde i 1951, han studerte og arbeidet ved mange institusjoner i mange land, og hans vitenskapelige arbeider høstet både medaljer og andre hedersbevisninger.
Sønnen Jacob Bjerknes (1897-1975) var farens assistent i Leipzig, og som meteorolog ved Meteorologisk observatorium i Bergen og bestyrer for Vervarslinga på Vestlandet var han en av Vilhelm Bjerknes' medarbeidere i utviklingen av "bergensmetodene".
Vilhelm Bjerknes kom tilbake til vårt universitet som ekstraordinær professor i mekanikk og matematisk fysikk i 1926.
www.uio.no /om_uio/navn/bjerknes.html   (472 words)

  
 Vilhelm Bjerknes   (Site not responding. Last check: 2007-10-16)
Vilhelm Friman Koren Bjerknes (March 14, 1862 - April 9, 1951) was a Norwegian physicist and meteorologist who did much to found the modern practice of weather forecasting.
Born in Christiania, Bjerknes enjoyed an early exposure to fluid dynamics, assisting his father, Carl Anton Bjerknes, in his mathematical research.
In 1907, Bjerknes returned to the University of Kristiania before becoming professor of geophysics at the University of Leipzig in 1912.
publicliterature.org /en/wikipedia/v/vi/vilhelm_bjerknes.html   (223 words)

  
 Bjerknes_Vilhelm biography
Vilhelm Bjerknes was a son of Carl Bjerknes and Aletta Koren, whose father was a minister in the Church in West Norway.
Vilhelm began this work with his father when he was still quite a young boy and he continued the collaboration after he began his undergraduate studies at the University of Kristiania in 1880.
Bjerknes was dignified in manner, in appearance and in his presentation of his scientific work, but with his dignity he combined a certain modesty and an enthusiasm which both attracted and stimulated younger men.
www-groups.dcs.st-and.ac.uk /~history/Biographies/Bjerknes_Vilhelm.html   (1972 words)

  
 Vilhelm Bjerknes - LoveToKnow 1911
"VILHELM BJERKNES (1862-), Norwegian physicist, son of Carl Anton Bjerknes, professor of mathematics in the university of Christiania, was born in 1862, and was educated at the university of Christiania.
He became at a very early age assistant to, and collaborator with, his father, who had discovered by mathematical analysis the remarkable 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.
Continuing his experiments at the university of Christiania (1891-2), he proved experimentally the influence which the conductivity and the magnetic properties of the metallic conductors exert upon the electric oscillations, and measured the depth to which the electric oscillations penetrate in metals of different conductivity and magnetic permeability (the " skin effect ").
www.1911encyclopedia.org /Vilhelm_Bjerknes   (558 words)

  
 AllRefer.com - Vilhelm Frimann Koren Bjerknes (Weather And Climate, Biography) - Encyclopedia
Vilhelm Frimann Koren Bjerknes[vil´helm frE´mAn kO´run byerk´nes] Pronunciation Key, 1862–1951, Norwegian physicist and pioneer in modern meteorology.
Bjerknes was professor at the universities of Oslo (1907–12, 1926–32); Leipzig (1912–17); and Bergen (1917–26), where he set up a geophysical institute.
Jakob Bjerknes served as professor of meteorology at the Univ. of Bergen (1931–40) and at the Univ. of California (from 1940).
reference.allrefer.com /encyclopedia/B/Bjerknes.html   (311 words)

  
 Hooked on Hydrodynamics - The World and I Magazine
Vilhelm's focus was on the practical application of mathematically defining and analyzing atmospheric conditions with the goal of "precalculation of its [the atmosphere's] future states"--that is, accurate weather forecasting.
Vilhelm believed he was on to something big--the birth of the science of the motion of the atmosphere, "dynamic meteorology." And his plans were ambitiously comprehensive.
Vilhelm returned to teaching at Kristiania by 1907, honing his meteorological theories on the side for a 1909 kickoff of regular lecturing on dynamic meteorology.
www.worldandi.com /public/1997/february/ar1.cfm   (3426 words)

  
 EO Library: Vilhelm Bjerknes (via CobWeb/3.1 planetlab1.netlab.uky.edu)   (Site not responding. Last check: 2007-10-16)
Vilhelm Bjerknes is considered by many to be one of the founders of modern meteorology and weather forecasting.
Young Vilhelm believed that continuing work with his father would be detrimental to his career, a tough decision for a son who was devoted to his father.
Together, Hertz and Bjerknes conducted a comprehensive study of electrical resonance (an effect in which the resistance to the flow of an electrical current becomes very small over a narrow frequency range) that was influential in the development of radio.
earthobservatory.nasa.gov.cob-web.org:8888 /Library/Giants/Bjerknes   (282 words)

  
 EGU - Vilhelm Bjerknes
The medal is named after Vilhelm Bjerknes (1862-1951), one of the leading atmospheric scientists of the first half of this century.
In the 1890's, when he was professor of mechanics and mathematical physics in Stockholm, he became aware that the classical hydrodynamic theory for inviscid fluids, culminating in Helmholtz' and Kelvin's vortex conservation theorems, is based on a restricted fluid model where the density distribution is necessarily barotropic.
With the introduction of this generalized fluid dynamics which he termed "physical hydrodynan-tics", Bjerknes had laid the theoretical foundation for the study of motions in the atmosphere and the oceans with their baroclinic density distributions.
www.copernicus.org /EGU/awards/vilhelm_bjerknes.html   (569 words)

  
 EO Library: Vilhelm Bjerknes Page 3
Bjerknes was 55 years old at the time and most historians agree this is where Bjerknes did his best work, continuing his research into the mathematical approach to weather forecasting.
Bjerknes, in collaboration with his son Jacob and other scientists at the Bergen School in Norway, developed the polar front theory.
Bjerknes made his final move in 1926 when he accepted the chair of the Department of Applied Mechanics and Mathematical Physics at the University of Oslo (Kristiania was renamed Oslo in 1925).
earthobservatory.nasa.gov /Library/Giants/Bjerknes/bjerknes_3.html   (434 words)

  
 Vilhelm Bjerknes Biography | Encyclopedia of World Biography
Vilhelm Bjerknes (1862-1951), a pioneer of modern meteorology, was especially known for his studies in hydrodynamics and thermodynamics and their relation to atmospheric motion.
Vilhelm Bjerknes was born on March 14, 1862, to Carl Anton Bjerknes, a respected mathematician and physicist, and Aletta Koren, a minister's daughter, in Kristiania (later renamed Oslo), Norway.
Bjerknes accepted a position as professor of mechanics and mathematical physics at the University of Oslo, and left the Geophysical Institute of Bergen to Sverdrup, his son Jacob, and other collaborators he had trained.
www.bookrags.com /biography/vilhelm-bjerknes   (1665 words)

  
 Vilhelm Frimann Koren Bjerknes Biography | scit_0612345_package.xml
Vilhelm Bjerknes made seminal contributions to the foundation of dynamic meteorology as a mathematically exact modern science with his theory of "physical hydrodynamics," while expanding practical meteorology with the development of synoptic meteorology and formula-based weather forecasting techniques.
Bjerknes settled into a professorship of applied mechanics and mathematical physics at the University of Stockholm in 1895, during which time he decided to return to hydrodynamics and his father's research but with limited success in the latter regard.
Bjerknes was offered the chair of a new geophysical institute at the University of Leipzig in 1912, and several of his young collaborators followed him there to do research on storm movement forecasting, which was the most practical application in contemporary meteorology.
www.bookrags.com /biography/vilhelm-frimann-koren-bjerknes-scit-0612345   (654 words)

  
 The Dispatch - Serving the Lexington, NC - News   (Site not responding. Last check: 2007-10-16)
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.
www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Jacob_Bjerknes   (119 words)

  
 Essays Page
His father, Carl Anton Bjerknes, was professor of mathematics at Christiania (now Oslo) University, and Vilhelm helped him with some of his experiments in hydrodynamics before leaving to spend 1890 and 1891 in Germany working as an assistant to and collaborator with the physicist Heinrich Hertz.
Bjerknes returned to Norway in 1907 as a professor at Kristiania (the spelling had been changed) University and, in 1910 and 1911, he and three of his assistants (the Swedish meteorologist Johan W. Sandström and the Norwegians Olaf D. Devik and T. Hesselberg) published Dynamic Meteorology and Hydrography.
Vilhelm Bjerknes was an inspired and popular teacher who attracted talented workers and made sure they received full recognition for their work.
www.fofweb.com /Subscription/Science/Helicon.asp?SID=2&iPin=enweath0380   (519 words)

  
 met.no: Vilhelm Bjerknes
Vilhelm Bjerknes' vitenskapelige arbeider er grunnleggende for all moderne værvarsling.
I perioden 1888 - 91 tok Vilhelm Bjerknes lærereksamen, og studerte siden ved euroepsiek læresteder i Paris, i Genève, og i Bonn.
I 1917 ble Vilhelm Bjerknes ansatt som styrer av den meteorologiske virksomheten ved det nyopprettede Geofysiske instituttet i Bergen (fra 1946 en del av Universitet i Bergen).
met.no /met/met_lex/a_f/vilhelm_bjerknes   (484 words)

  
 Arven etter Vilhelm Bjerknes - bt.no
I denne kronikken blir det gjort greie for Vilhelm Bjerknes' visjoner for værvarsling, visjoner som direkte kan utvides til klimaforskning.
Bjerknes forsto straks at hans teoremer representerte et betydelig hjelpemiddel for å forstå bevegelser i luft og hav, spesielt hvordan sirkulasjoner kan oppstå som følge av termiske prosesser.
Bjerknes skriver senere at da han publiserte sin artikkel i 1904, var en av grunnene å bli kvitt problemet værvarsling og overlate problemene til andre.
www.bt.no /meninger/kronikk/article110775.ece   (1594 words)

  
 Vilhelm Bjerknes y los inicios de la meteorología moderna (I)
La meteorología moderna debe muchas otras contribuciones a Vilhelm Bjerknes y no son sólo sus investigaciones y descubrimientos teóricos, sino también su esfuerzo por difundirlos entre la comunidad meteorológica mundial y sus campañas para que los meteorólogos adaptasen sus actividades y procedimientos a las necesidades justificadas por la teoría.
Vilhelm había tenido una intervención destacada en el diseño y construcción de esos aparatos caseros que en realidad pretendían apoyar experimentalmente la investigación en que su padre estaba inmerso desde hacía años.
Bjerknes presentó por primera vez en 1897 sus resultados sobre vórtices y movimientos circulares, entre ellos la versión inicial del famoso “teorema de la circulación”.
www.meteored.com /RAM/numero9/Bjerknes.asp   (2548 words)

  
 Library and Information Services Division
After World War II, Bjerknes conducted extensive studies of the upper atmosphere and jet stream; in 1952 he was among the first to use for this purpose photographs taken by high‑altitude research rockets.
Bjerknes also studied the climatic consequences of the interaction of the ocean and atmosphere in the tropical Pacific and in 1969 was the first to propose what became known as the Bjerknes hypothesis.
O'Connor, J.J., and E.F. Robertson, Vilhelm Freimann Korean Bjerknes.
docs.lib.noaa.gov /rescue/Bibliographies/Bjerknes/Bjerknes_July_2004.htm   (1847 words)

  
 El Niño and La Niña: A Meteorologist Looks at the Sea
During World War I he had worked with his father, Vilhelm Bjerknes, a pioneering meteorologist who coined the term "fronts" to describe the boundaries in the atmosphere where masses of warm and cold air meet and often spawn storms.
The elder Bjerknes recognized that weather forecasting would require not only global data on atmospheric conditions but also much better knowledge of "the laws according to which one state of the atmosphere develops from another." Decades later in America his son would make an important contribution to that knowledge.
Bjerknes recognized that during El Niño conditions, when the waters off northern Peru are warmer than normal and surface air pressure is lower as a consequence, the pressure difference between east and west weakens and so do the westward trade winds.
www7.nationalacademies.org /opus/1elnino_4.html   (586 words)

  
 Bjerknes Vilhelm Firman Koren - Search Results - MSN Encarta
Bjerknes Vilhelm Firman Koren - Search Results - MSN Encarta
Bjerknes, Vilhelm Firman Koren (1862–1951), Norwegian scientist, whose theory of polar fronts formed the basis of all modern weather forecasting...
Hammershøi, Vilhelm (1864–1916), Danish artist known for painting evocative domestic interiors.
ca.encarta.msn.com /Bjerknes_Vilhelm_Firman_Koren.html   (70 words)

  
 Vilhelm Meet Virtualtourist Traveler, Vilhelm. Virtualtourist Members Share Their Travel Experience, Unbi   (Site not responding. Last check: 2007-10-16)
Bjerknes, Vilhelm F K Norwegian meteorologist and physicist, one of the founders of the modern science of weather forecasting.
Vilhelm F. Bjerknes Vilhelm F. VILHELM HAMMERSHØI (1864 - 1916): Danish Painter of Solitude and Light be the sole United States venue to present Vilhelm Hammershøi (1864-1916): Danish Painter of Solitude and.
The medal is named after Vilhelm Bjerknes (1862-1951), one of the leading atmospheric scientists of the first of the EGS: Vilhelm Bjerknes began his scientific career as a.
www.99hosted.com /names20599.html   (405 words)

  
 040venki
After completing his studies on the general circulation of the atmosphere, he had turned his attention to the problem of climate and climate change which he correctly predicted was the wave of the future.
Bjerknes clearly recognized that El Nino is a manifestation of a large-scale air-sea interaction problem.
Bjerknes was fascinated by the drama of weather.
www.mnc.net /norway/venki.htm   (1531 words)

  
 March 14 - Today in Science History   (Site not responding. Last check: 2007-10-16)
Vilhelm F(riman) K(oren) Bjerknes was a Norwegian meteorologist and physicist, one of the founders of the modern science of weather forecasting.
As a young boy, Bjerknes assisted his father, Carl Bjerknes (a professor of mathematics) in carrying out experiments to verify the theoretical predictions that resulted from his father's hydrodynamic research.
After graduating from university, Bjerknes moved on to his own work applying hydrodynamic and thermodynamic theories to atmospheric and hydrospheric conditions in order to predict future weather conditions.
www.todayinsci.com /3/3_14.htm   (2157 words)

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