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The Lemon technique is a method used by meteorologists using weather radar to determine the relative strength of thunderstorm cells in a vertically sheared environment. It is named for Leslie R. Lemon, the co-creator of the current conceptual model of a supercell.
Learn how mathematical models of the atmosphere and oceans are used to predict the weather and climate based on current conditions and observations. Explore the history, methods, challenges and applications of numerical weather prediction.
College of DuPage is a public community college in Illinois with over 20,000 students. It offers various programs, services, and facilities on its main campus and four satellite campuses.
GEM is a Canadian weather forecasting and data assimilation system that runs out to 16 days. It has different variants for global, regional and mesoscale applications, and uses a hydrostatic primitive equation with a terrain following pressure coordinate.
These statistical models are collectively referred to as model output statistics (MOS), [76] and were developed by the National Weather Service for their suite of weather forecasting models by 1976. [77] The United States Air Force developed its own set of MOS based upon their dynamical weather model by 1983. [78]
Learn about the physical processes that lead to the formation, growth and precipitation of atmospheric clouds in different layers and regions. Explore the history, theories and methods of cloud physics, as well as the role of condensation nuclei, adiabatic cooling and convection.
WSR-74 was a series of weather radars designed in 1974 for the National Weather Service. They operated in C or S band and were used for local or national warnings until the 1990s.
MM5 is a regional mesoscale model for weather forecasts and climate projections. It uses sigma coordinate, data assimilation, and two-way nesting, and is maintained by Penn State University and NCAR.