- 行业: Weather
- Number of terms: 60695
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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 region of the atmosphere in which turbulence frequently exists; thus, it is the troposphere, in contrast to the supposedly nonturbulent stratosphere.
Industry:Weather
A device that renders visible the paths of high energy subatomic particles. A supersaturated vapor condition is created in a chamber filled with dust-free air by a sudden adiabatic expansion and cooling. In this environment, the small ions formed along the path of a high energy particle act as effective condensation nuclei. The line of droplets so formed can be used to mark the path. See meteorological cloud chamber.
Industry:Weather
Short, pithy, and much-used saying that expresses a well-known truth about the weather.
Industry:Weather
Electromagnetic radiation with wavelengths shorter than that of ultraviolet radiation and greater than that of gamma radiation. Discovered accidentally by Röntgen in 1895. The primary mechanism for the production of x- rays is deceleration of a rapidly moving charge upon interaction with matter (bremsstrahlung). The x-ray spectrum from an x-ray tube consists of this continuous spectrum on which are superimposed narrow bands (characteristic radiation) that are a consequence of transitions between electronic energy levels of atoms. No sharp boundary exists between x- and ultraviolet radiation nor between x- and gamma radiation, although the latter term is usually restricted to radiation resulting from transitions between nuclear energy levels.
Industry:Weather
At a given level in the atmosphere, any low that is warmer at its center than at its periphery; the opposite of a cold low. Compare thermal low.
Industry:Weather
A wind that ascends a mountain valley (upvalley wind) during the day; the daytime component of a mountain–valley wind system.
Industry:Weather
Short, pithy, and much-used saying that expresses a well-known truth about the weather.
Industry:Weather
A synoptic chart of meteorological conditions in the upper air, almost invariably referring to a standard constant-pressure chart.
Industry:Weather
A synoptic chart of meteorological conditions in the upper air, almost invariably referring to a standard constant-pressure chart.
Industry:Weather
At a given level in the atmosphere, any high that is warmer at its center than at its periphery; the opposite of a cold high. Compare thermal high; see cut-off high.
Industry:Weather
