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Jerry Straka
Jerry Michael Straka is an American atmospheric scientist with expertise microphysics of clouds, cloud modeling, and dynamics of severe convection in conjunction with weather radar. He was in leadership roles in both the VORTEX projects and subsequent field research focusing on tornadogenesis. Straka earned a B.S. and M.S. in 1984 and 1986, respectively, from the University of Wisconsin–Milwaukee. His masters dissertation was: ''A Mesoscale Numerical Study of Environmental Conditions Preceding the 08 June 1984 Tornado Outbreak over South Central Wisconsin''. Straka earned a Ph.D. in meteorology from the University of Wisconsin–Madison in 1989 with the doctoral dissertation: ''Hail Growth in a Highly Glaciated Central High Plains Multi-cellular Hailstorm.'' He is a professor at the University of Oklahoma in Norman. See also * Robert Davies-Jones * Katharine Kanak * Paul Markowski * Erik N. Rasmussen Erik Nels Rasmussen (born January 27, 1957) is an American meteor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Davies-Jones
Robert Peter Davies-Jones is a British atmospheric scientist who substantially advanced understanding of supercell and tornado dynamics and of tornadogenesis. A theoretician, he utilized numerical simulations as well as storm chasing field investigations in his work as a longtime research meteorologist at the National Severe Storms Laboratory (NSSL) in Norman, Oklahoma. Davies-Jones received a B.Sc. in physics from the University of Birmingham in 1964 and a Ph.D. in astrophysics from the University of Colorado Boulder in 1969. From 1969 to 1970 Davies-Jones did a post-doc at the National Center for Atmospheric Research (NCAR) before embarking on a long career at NSSL in 1970. He retired from NSSL in 2009 where he remains an emeritus researcher and continues to publish some papers. Davies-Jones is a Fellow of the American Meteorological Society (AMS). Davies-Jones earned the NOAA Distinguished Career Award and in 2018 the Nikolai Dotzek Lifetime Achievement Award by the European Sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weather Radar
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Both types of data can be analyzed to determine the structure of storms and their potential to cause severe weather. During World War II, radar operators discovered that weather was causing echoes on their screen, masking potential enemy targets. Techniques were developed to filter them, but scientists began to study the phenomenon. Soon after the war, surplus radars were used to detect precipitation. Since then, weather radar has evolved on its own and is now used by national weather services, research departments in universities, and in television stations' weather departments. Raw images are routinely used and speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storm Chasers
''Storm Chasers'' is an American documentary reality television series that premiered on October 17, 2007, on the Discovery Channel. Produced by Original Media, the program follows several teams of storm chasers as they attempt to intercept tornadoes in Tornado Alley in the United States. The show was canceled at the end of its 5th season by Discovery Communications on January 21, 2012. Overview ''Storm Chasers'' was filmed each year in the central United States (an area known as Tornado Alley due to the frequency and severity of tornadoes occurring there) primarily during late spring and early summer, the time of the most frequent tornado activity (though some episodes of recent seasons have also been filmed in the lesser-known Dixie Alley in the southeastern U.S.). Several teams of storm chasers appear in the series. During the 2007 and 2008 seasons Dr. Joshua Wurman, a renowned atmospheric scientist and creator of the Doppler On Wheels (DOW), teamed with documentary IM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Meteorologists
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Oklahoma Faculty
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Wisconsin–Madison Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Wisconsin–Milwaukee Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katharine Kanak
Katharine M. Kanak is an American atmospheric scientist with noted publications on the dynamics and morphologies of atmospheric vortices, including tornadoes, tropical cyclones, misocyclones and landspouts, and dust devils both terrestrial and Martian. Kanak earned a B.S. from the University of Oklahoma (OU) in 1987, majoring in meteorology and minoring in mathematics. She went to the University of Wisconsin–Madison for a M.S. in meteorology, earned in 1990 with the thesis ''Three-Dimensional, Non-Hydrostatic Numerical Simulation of a Developing Tropical Cyclone''. She returned to OU and was awarded a Ph.D. in 1999 with the dissertation ''On the Formation of Vertical Vortices in the Atmosphere''. Kanak is interested in turbulent boundary layer structures and eddies generally and is additionally interested in tornadogenesis and cloud physics. She has developed three-dimensional numerical models for both Earth and Mars and collaborated in field research. Kanak was assistant ... [...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] |
Tornadogenesis
Tornadogenesis is the process by which a tornado forms. There are many types of tornadoes and these vary in methods of formation. Despite ongoing scientific study and high-profile research projects such as VORTEX, tornadogenesis is a volatile process and the intricacies of many of the mechanisms of tornado formation are still poorly understood. A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens it into an intense vortex. There are various ways this may come about and thus various forms and sub-forms of tornadoes. Although each tornado is unique, most kinds of tornadoes go through a life cycle of formation, maturation, and dissipation. The process by which a tornado dissipates or decays, occasionally conjured as tornadolysis, is of particular interest for study as is tornadogenesis, longevity, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Convection
Atmospheric convection is the result of a parcel-environment instability, or temperature difference layer in the atmosphere. Different lapse rates within dry and moist air masses lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to increased winds, cumulus cloud development, and decreased surface dew points. Moist convection leads to thunderstorm development, which is often responsible for severe weather throughout the world. Special threats from thunderstorms include hail, downbursts, and tornadoes. Overview There are a few general archetypes of atmospheric instability that are used to explain convection (or lack thereof). A necessary (but not sufficient) condition for convection is that the environmental lapse rate (the rate of decrease of temperature with height) is steeper than the lapse rate experienced by a rising parcel of air. When this condition is met, upward-displaced air parcels can become buoyant and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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