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Vilhelm Bjerknes 150 År Vilhelm Bjerknes 14.mars 1862 - 9. april 1951 Norsk fysiker og meteorolog. Bjerknes grunnla Bergensskolen i meteorologi og er opphavsmannen til den moderne værvarslinga. Etter forskningsarbeid i Stockholm og Leipzig kom Sigbjørn Grønås Sir Brian Hoskins Bjerknes i 1917 tilbake til Professor emeritus i Professor i meteorologi ved Norge for å lede det meteorologi, Geofysisk University of Reading, direktør ved Grantham nyoprettede Geofysiske institutt UiB og Bjerknessenteret Institute of Climate Change Institutt i Bergen. ved Imperial College of London. 14. mars 2012 Vilhelm Bjerknes 150 år Velkommen til forelesning på fødselsdagen 14. mars Professor emeritus Sigbjørn Grønås: «Vilhelm Bjerknes og hans visjon om vitenskapelig værvarsling» Auditoriet østfløyen GFI kl 13.15 kl 14.30 Fødselsdagskake i kantina Mandag 19. mars Gjesteforelesning med professor sir Brian Hoskins: «The fingerprints of Vilhelm Bjerknes on modern climate science» VilVite Auditorium i Vitensenteret kl 10.15 Forelesningene er åpne for alle interesserte For mer informasjon kontakt: Nils Gunnar Kvamstø nils.kvamsto@gfi.uib.no Insituttleder, Geofysisk institutt tlf 55 58 28 98 Gudrun Sylte [email protected] Kommunikasjonsleder, Bjerknessenteret tlf 55 58 32 97, mob 40 85 64 57 Professor sir Brian Hoskins «The fingerprints of Vilhelm Bjerknes on modern climate science» A discussion will be given of modern climate science, highlighting aspects of it that reflect the fundamental influence of Vilhelm Bjerknes. These include the scientific approach to prediction, the seamless nature of the weather and climate problem, and the attempt to understand phenomena based on materially conserved quantities. More generally his influence is seen in the drive to provide predictions that are of practical use to our community. About sir Brian Hoskins: Sir Brian Hoskins became the first Director of the Grantham Institute for Climate Change at Imperial College London in January 2008, and now shares his time between Imperial and Reading University, where he is Professor of Meteorology. Vilhelm Bjerknes 14. mars 1862 - 9. april 1951 His degrees are in mathematics from the University of Cambridge and he spent post-doc years in the USA before moving to Reading, where he became a Professor in his thirties and was a Tekst hentet fra Sigbjørn Grønås, viten.no: head of department for six years. For the 10 years up to September 2010 he held a Royal Society Research Professorship. Vilhelm Bjerknes var en gigant i internasjonal fysikk og His research is in weather and climate, in particular the geofysikk. Hans navn er knyttet til et sirkulasjonsteorem fra understanding of atmospheric motion from frontal to planetary 1898 som kan forklare hvordan sirkulasjoner i atmosfære scales. og hav oppstår og dør ut. Med dette knyttet han sammen fagfeltene hydro- og termodynamikk. Han var den første His international roles have included being vice-chair of the Joint som analyserte problemet værvarsling ut fra fysikkens lover Scientific Committee for the World Climate Research Programme, og satte opp et program for hvordan en kan beregne President of the International Association of Meteorology and atmosfærens tilstand (været) fra et tidspunkt til det neste Atmospheric Sciences and involvement in the 2007 IPCC (1904). Han regnes derfor som far for fagfeltet numerisk international climate change assessment. He has also had værvarsling som i dag danner grunnlaget for all numerous UK roles, including playing a major part in the 2000 værvarsling. Med sin forskning bygde han opp fagfeltet Report by The Royal Commission on Environmental Pollution that dynamisk meteorologi, blant annet gjennom en rekke first proposed a 60% target for UK carbon dioxide emission lærebøker hans skrev sammen med sine assistenter reduction by 2050, and is currently a member of the UK (1910-11, 1933-34). Committee on Climate Change. He is a member of the science academies of the UK, USA, China and Europe and has received a I 1904 publiserte han en kort artikkel med et teoretisk og number of awards including the top prizes of the UK and US praktisk program for vitenskapelig værvarsling. Han innså Meteorological Societies and honorary DScs from the Universities at problemet med å beregne en prognose for været var en of Bristol and East Anglia. He was knighted in 2007 for his umåtelig stor regneoppgave. Likevel, hans tro på teknisk services to the environment." og vitenskapelig framgang var enorm. I 1913 sa han i en tale i Leipzig: "Vi må utnytte ligningene i den teoretiske fysikk, ikke bare for ideelle tilfeller, men for aktuelle tilstander i atmosfæren slik de er vist i moderne observasjoner." Han var selv overbevist om at problemene VilVite Auditorium i Vitensenteret kunne løses og sa i samme tale:" Det kan ta år å borre en Mandag 19. mars 2012 tunnel gjennom et fjell. Mang en arbeider vil ikke leve for å kl 10.15 oppleve gjennombruddet. Likevel, det vil ikke hindre andre Velkommen! fra senere å reise gjennom tunnelen med ekspressfart." Gjennom Bergensskolen i meteorologi (1917-1926) fornyet han praktisk værvarsling med metoder som siden ble anvendt over hele verden. Han nådde sitt mål om å gjøre meteorologi til en eksakt vitenskap på linje med fysikk. Auditoriet i østfløyen, Geofysisk institutt Onsdag 14. mars 2012 kl 13.15.
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