Tor Bergeron (15 August 1891 – 13 June 1977) was a Swedish meteorologist who proposed a mechanism for the formation of precipitation in clouds. In the 1930s, Bergeron and W. Findeisen developed the concept that clouds contain both supercooled water and ice crystals. According to Bergeron, most precipitation is formed as a consequence of water evaporating from small supercooled droplets and accreting onto ice crystals, which then fall as snow, or melt and fall as cold rain depending on the ambient air temperature. This process is known as the Bergeron Process, and is believed to be the primary process by which precipitation is formed.
Bergeron was one of the principal scientists in the Bergen School of Meteorology, which transformed this science by introducing a new conceptual foundation for understanding and predicting weather. While developing innovative methods of forecasting, the Bergen scientists established the notion of weather fronts and elaborated a new model of extratropical cyclones that accounted for their birth, growth, and decay. Bergeron is credited with discovering the occlusion process, which marks the final stage in the life cycle of an extratropical cyclone.
In 1949 he was awarded the Symons Gold Medal of the Royal Meteorological Society. In 1966 he was awarded the prestigious International Meteorological Organization Prize from the World Meteorological Organization.
Lundsbergs boarding school (Swedish: Lundsbergs skola) is a Swedish boarding school located in the Parish of Storfors north of Kristinehamn in Värmland, Sweden. Lundsberg was founded in 1896 with inspirations from classical English boarding schools, and has approximately 200 students today. The school is run by the Lundsbergs school Foundation, Stiftelsen Lundsbergs skola and is well known for its conservative atmosphere.
The school is one of the three elite boarding schools in Sweden. Annual tuition is about £24,000. The cost is subsidized by the state but augmented by parents. The school consists of six dormitories, of which three are boys’ dormitories (Forest Hill, Björke and Gransäter), and three are girls’ dormitories (Klätten, Herrgården and Skogshult).
The school was closed on 28 August 2013 by the Swedish School Inspectorate due problems concerning abuse and bullying. However, on 6 September 2013, the Administrative court in Stockholm decided that the school would be re-opened on 9 September 2013.