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American Meteorological Society
Industry: Weather
Number of terms: 60695
Number of blossaries: 0
Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
A method of atmospheric sounding in which wind velocities and temperatures are inferred, as functions of height to about 90 km, from analysis of the speed of travel of sound waves from a series of grenades fired at height intervals of a few kilometers from an ascending meteorological rocket. The sounds of detonation are received at an array of microphones on the ground. The position and time of the grenade bursts are determined by optical or radio means.
Industry:Weather
A precipitation event during which a coating of ice forms on exposed objects by the freezing of supercooled water deposited by rain, drizzle, and/or fog. See ice storm.
Industry:Weather
A wavenumber in the turbulence kinetic energy spectrum that separates the buoyancy subrange from the inertial subrange. This wavenumber ''k<sub>B</sub>'' is given by <center>[[File:ams2001glos-Be30.gif
Industry:Weather
A dimensionless number, Bu, for atmospheric or oceanographic flow expressing the ratio between density stratification in the vertical and the earth's rotation in the horizontal: <center>[[File:ams2001glos-Be31.gif
Industry:Weather
Exact solution of the Navier–Stokes equations for a steady vortex in which the diffusion of vorticity is balanced by vortex stretching in an external strain field. The vortex has a Gaussian shape. For example, for a vertical axisymmetric vortex in an external velocity field given by <center>[[File:ams2001glos-Be32.gif
Industry:Weather
A similarity relationship between surface flux of a variable and the mean vertical profile of that variable. These are generically of the form <center>[[File:ams2001glos-Be34.gif
Industry:Weather
With respect to weather, generally descriptive of pleasant weather conditions, with due regard for location and time of year. It is subject to popular misinterpretation, for it is a purely subjective description. When this term is used in weather forecasts (National Weather Service), it is meant to imply 1) no precipitation; 2) less than 0. 4 sky cover of low clouds; 3) no other extreme conditions of cloudiness, visibility, or wind; 4) unrestricted visibility; and 5) light winds of generally less than 10 knots (5 m s−1). Compare cloudy.
Industry:Weather
Young ice 10–15 cm thick, less elastic than nilas.
Industry:Weather
Written or printed documents, including charts or forms containing meteorological information for a flight.
Industry:Weather
Water that was present when the rock was formed. Compare connate water, meteoric water.
Industry:Weather
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