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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, ...
The facts, relationships, and procedures that constitute the knowledge about a given domain or task; the database of an expert (or knowledge based) system.
Industry:Weather
The extraction and formulation of knowledge derived from extant sources, especially from experts. It includes the development of knowledge bases, often by interviewing and observing domain experts and extracting rules from their behavior or statements.
Industry:Weather
The evaporation from the surface of a lake.
Industry:Weather
The eastern boundary current of the south Indian Ocean. It occupies the latitude band of the subtropical gyre but is not part of it; rather, it is found as a narrow and swift southward flowing current along the west Australian shelf opposing the broad northward flow of the subtropical gyre (the West Australian Current) farther offshore. The Leeuwin Current runs against the prevailing wind; it is driven by the alongshore pressure gradient caused by the connection between the Pacific and Indian Oceans north of Australia. Its water, which is of tropical origin, cools as it proceeds southward, producing convection and a continuous deepening of the surface mixed layer along the current's path. The associated heat loss is a significant heat gain for the atmosphere.
Industry:Weather
The energy that a body possesses as a consequence of its motion, defined as one- half the product of its mass and the square of its speed, (1/2)mv2. The kinetic energy per unit volume of a fluid parcel is thus (1/2)v2, where is the density and v the speed of the parcel. See potential energy.
Industry:Weather
The effect of the presence of the rain gauge on the rainfall measurement. In 1861, W. S. Jevons pointed out that the rain gauge causes a disturbance in airflow past it, which carries past the gauge part of the rain that would normally be captured. The effect is a function of the wind speed and the height of the gauge from the ground. Rain-gauge shields have been devised to minimize this loss.
Industry:Weather
The decrease of an atmospheric variable with height, the variable being temperature, unless otherwise specified. The term applies ambiguously to the environmental lapse rate and the process lapse rate, and the meaning must often by ascertained from the context.
Industry:Weather
The discipline that addresses the planning and programming tasks of building, testing, and deploying knowledge-based systems. It includes the development of expert systems, including knowledge acquisition and knowledge representation.
Industry:Weather
The development of wave equations from the full equations of motion, based on the assumption that the wave height to wavelength ratio (wave steepness) is small. From this theory it is possible to calculate quantities such as the phase velocities and group velocities of the waves.
Industry:Weather
The current flowing in a component of the lightning flash. It is usually considered to be the current in the return stroke.
Industry:Weather
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