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Rossby
Carl-Gustaf Arvid Rossby ( 28 December 1898 – 19 August 1957) was a Sweden, Swedish-born American meteorologist who first explained the large-scale motions of the Earth's atmosphere, atmosphere in terms of fluid mechanics. He identified and characterized both the jet stream and the long waves in the westerlies that were later named Rossby waves. Biography Carl-Gustaf Rossby was born in Stockholm, Sweden. He was the first of five children born to Arvid and Alma Charlotta (Marelius) Rossby. He attended Stockholm University, where he developed his first interest in mathematical physics. Rossby came into meteorology and oceanography while studying geophysics under Vilhelm Bjerknes at the Geophysical Institute, University of Bergen in Bergen, Norway, during 1919, where Bjerknes' group was developing the groundbreaking concepts that became known as the Bergen School of Meteorology, including theory of the polar front. He also studied at the University of Leipzig and at the Linde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rossby Waves
Rossby waves, also known as planetary waves, are a type of inertial wave naturally occurring in rotating fluids. They were first identified by Sweden-born American meteorologist Carl-Gustaf Arvid Rossby. They are observed in the atmospheres and oceans of planets owing to the rotation of the planet. Atmospheric Rossby waves on Earth are giant meanders in high-altitude winds that have a major influence on weather. These waves are associated with pressure systems and the jet stream (especially around the polar vortices). Oceanic Rossby waves move along the thermocline: the boundary between the warm upper layer and the cold deeper part of the ocean. Rossby wave types Atmospheric waves Atmospheric Rossby waves result from the conservation of potential vorticity and are influenced by the Coriolis force and pressure gradient. The rotation causes fluids to turn to the right as they move in the northern hemisphere and to the left in the southern hemisphere. For example, a fluid that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Stream
Jet streams are fast flowing, narrow, meandering thermal wind, air currents in the Atmosphere of Earth, atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds (flowing west to east). Jet streams may start, stop, split into two or more parts, combine into one stream, or flow in various directions including opposite to the direction of the remainder of the jet. Overview The strongest jet streams are the polar jets around the Polar vortex, polar vortices, at above sea level, and the higher altitude and somewhat weaker subtropical jets at . The Northern Hemisphere and the Southern Hemisphere each have a polar jet and a subtropical jet. The northern hemisphere polar jet flows over the middle to northern latitudes of North America, Europe, and Asia and their intervening oceans, while the southern hemisphere polar jet mostly circles Antarctica, both all year round. Jet streams are the prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hsiao-Lan Kuo
Hsiao-Lan Kuo (Guo Xiaolan; 1915–2006) was a Chinese-American mathematician and meteorologist. He was a recipient of the Carl-Gustaf Rossby Research Medal. Career Born in Mancheng County, Hebei Province on February 7, 1915, Kuo obtained his B.Sc. from Tsinghua University (1937), a M.Sc. from Zhejiang University (1942, under advisor Coching Chu), and a Ph.D. from the University of Chicago (1948, advisor Carl-Gustaf Rossby). From 1949 to 1961, Kuo worked as a research associate, later a senior specialist, and finally the project director on the Hurricane Project at the Massachusetts Institute of Technology (MIT). He was Professor Emeritus at the Department of Geophysical Sciences at the University of Chicago. Kuo was an academician of Academia Sinica (1988 election). Works Kuo developed important mathematical tools to describe the complex circulation patterns of atmospheric activity. He helped to mathematically model the birth of a tropical cyclone (hurricane). Kuo's work is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Oceanography
Physical oceanography is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters. Physical oceanography is one of several sub-domains into which oceanography is divided. Others include biological, chemical and geological oceanography. Physical oceanography may be subdivided into ''descriptive'' and ''dynamical'' physical oceanography. Descriptive physical oceanography seeks to research the ocean through observations and complex numerical models, which describe the fluid motions as precisely as possible. Dynamical physical oceanography focuses primarily upon the processes that govern the motion of fluids with emphasis upon theoretical research and numerical models. These are part of the large field of Geophysical Fluid Dynamics (GFD) that is shared together with meteorology. GFD is a sub field of Fluid dynamics describing flows occurring on spatial and temporal scales that are greatly influenced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl-Gustaf Rossby Research Medal
The Carl-Gustaf Rossby Research Medal is the highest award for atmospheric science of the American Meteorological Society. It is presented to individual scientists, who receive a medal. Named in honor of meteorology and oceanography pioneer Carl-Gustaf Rossby, who was also its second (1953) recipient. Previous names The prize was initially called ''Award for Extraordinary Scientific Achievement''. In 1958 it was renamed ''The Carl-Gustaf Rossby Award for Extraordinary Scientific Achievement'', and after 1963, its current name. Recipients *SourceAmerican Meteorological Society(Enter award name and click "submit") * 1951: Hurd Curtis Willett for his contributions to dynamic meteorology leading to a better understanding of atmospheric motions and thermodynamics. * 1953: Carl-Gustaf Rossby for his contributions to dynamic meteorology leading to a better understanding of atmospheric motions and thermodynamics. * 1955: Jerome Namias for his contributions to, and stimulation of, resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorologist
A meteorologist is a scientist who studies and works in the field of meteorology aiming to understand or predict Earth's atmospheric phenomena including the weather. Those who study meteorological phenomena are meteorologists in research, while those using mathematical models and knowledge to prepare daily weather forecasts are called ''weather forecasters'' or ''operational meteorologists''. Meteorologists work in government agencies, private consulting and research services, industrial enterprises, utilities, radio and television stations, and in education. They are not to be confused with weather presenters, who present the weather forecast in the media and range in training from journalists having just minimal training in meteorology to full fledged meteorologists. Description Meteorologists study the Earth's atmosphere and its interactions with the Earth's surface, the oceans and the biosphere. Their knowledge of applied mathematics and physics allows them to understand the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedish Meteorological And Hydrological Institute
The Swedish Meteorological and Hydrological Institute ( sv, Sveriges meteorologiska och hydrologiska institut, abbreviated SMHI) is a Government agency in Sweden and operates under the Ministry of the Environment. SMHI has expertise within the areas of meteorology, hydrology and oceanography, and has extensive service and business operations within these areas. History In 1873, ''Statens Meteorologiska Centralanstalt'' was founded, an autonomous part of the Royal Swedish Academy of Sciences, but the first meteorological observations began on July 1, 1874. It was not until 1880 that the first forecasts were issued. The latter will be broadcast on Stockholm radio from 19 February 1924.. In 1908, the Hydrographic Office (''Hydrografiska byrån'', HB) was created. Its task is to scientifically map Sweden's freshwater and collaborate with the weather service in taking certain weather observations such as precipitation and snow cover. In 1919, the two services merged and became th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joanne Malkus
Joanne Simpson (formerly Joanne Malkus, born Joanne Gerould; March 23, 1923 – March 4, 2010) was the first woman in the United States to receive a Ph.D. in meteorology, which she received in 1949 from the University of Chicago.Atlas D and Lemone MA (2011) ''Joanne Simpson'', Memorial Tributes: National Academy of Engineering, 15, 368-375. Simpson received both her undergraduate and graduate degrees from the University of Chicago, and did post-doctoral work at Dartmouth College. Simpson was a member of the National Academy of Engineering, and taught and researched meteorology at numerous universities as well as the federal government. Simpson contributed to many areas of the atmospheric sciences, particularly in the field of tropical meteorology. She has researched hot towers, hurricanes, the trade winds, air-sea interactions, and helped develop the Tropical Rainfall Measuring Mission (TRMM). Academic life Her teaching and research career at universities includes time at the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erik Ivar Fredholm
Erik Ivar Fredholm (7 April 1866 – 17 August 1927) was a Swedish mathematician whose work on integral equations and operator theory foreshadowed the theory of Hilbert spaces. Biography Fredholm was born in Stockholm in 1866. He obtained his PhD at Uppsala University in 1898, under the supervision of Gösta Mittag-Leffler. He was ''docent'' at Stockholm University from 1898 to 1906 and professor from 1906 until his death. In 1914 he was elected a member of the Royal Swedish Academy of Sciences. Beside his academic career he was recruited to the Swedish Social Insurance Agency when it was founded in 1902. He later served as an actuary at the insurance company Skandia (1904-1927), where his Fredholm equation was used to calculate buyback-prices. From 1911, he was married to Agnes Maria Liljeblad, the secretary of Mittag-Leffler. Mathematical work In , Fredholm introduced and analysed a class of integral equations now called Fredholm equations. His analysis included the const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symons Gold Medal
The Symons Gold Medal is awarded biennially by the Royal Meteorological Society for distinguished work in the field of meteorological science. It was established in 1901 in memory of George James Symons, a notable British meteorologist. Recipients Source (1978-)Royal Metereological Society See also * List of meteorology awards * List of prizes named after people This is a list of awards that are named after people. A B C D E F G H I J K L M N O P R S T U - V W Y Z See also *Lists of awards Lists of awards cover awards given in various fields, i ... References {{reflist Meteorology awards British awards Awards established in 1901 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Wexler
Harry Wexler (March 15, 1911 – August 11, 1962) was an American meteorologist, born in Fall River, Massachusetts. Biography Wexler attended Harvard University, and in 1939 he was awarded a Ph.D. in meteorology under Carl-Gustaf Rossby from the Massachusetts Institute of Technology. He worked for the United States Weather Bureau from 1934 until 1942, then served as a Captain to a Lieutenant Colonel with the weather service of the Army Air Corps during World War II from 1942 until 1946. On September 14, 1944, Major Harry Wexler became the first scientist to deliberately fly into a hurricane. He accompanied a flight of a Douglas A-20 "Havoc" that flew into the hurricane to collect scientific data. In 1946 he returned to the U.S. Weather Bureau, becoming Chief of the Scientific Services division. As head researcher, Wexler encouraged a study into the atmospheres of planets other than the Earth. He is particularly noted for his work on the use of satellites for meteorological purp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorology
Meteorology is a branch of the atmospheric sciences (which include atmospheric chemistry and physics) with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did not begin until the 18th century. The 19th century saw modest progress in the field after weather observation networks were formed across broad regions. Prior attempts at prediction of weather depended on historical data. It was not until after the elucidation of the laws of physics, and more particularly in the latter half of the 20th century the development of the computer (allowing for the automated solution of a great many modelling equations) that significant breakthroughs in weather forecasting were achieved. An important branch of weather forecasting is marine weather forecasting as it relates to maritime and coastal safety, in which weather effects also include atmospheric interactions with large bodies of water. Meteorological pheno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
