- 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, ...
A physical, three-dimensional representation of the inflow, outflow, and vertical motion of air and water vapor in a storm. It is used in hydrometeorology as the basis for computing the effective precipitable water from the surface dewpoint by application of the equation of continuity.
Industry:Weather
A photometer that measures the intensity of radiation as a function of frequency (or wavelength) of the radiation. In one design, radiation enters the spectrophotometer through a slit and is dispersed by means of a prism. A bolometer having a fixed aperture scans the dispersed radiation so that the intensity over a narrow wave band is obtained as a function of frequency. See Dobson spectrophotometer.
Industry:Weather
A photoelectric cell with electrical resistance that varies with the amount of illumination falling upon the sensitive area of the cell. Conductivity = 1/(resistivity).
Industry:Weather
A phenomenon in which sound or radio energy may be detected only at various distance intervals from the energy source, as the result of the presence of an energy reflecting or refracting layer in the atmosphere. For long radio waves, the ionosphere acts as the reflecting layer. For shorter wavelengths, the effect may be produced by strong superstandard propagation in elevated layers of the troposphere. Skip effects make it possible on occasion to detect targets at distances far greater than the normal radio horizon while closer targets remain undetected.
Industry:Weather
A persistent, rain-bearing, southwest (sud-ouest) wind on the west coast of France.
Industry:Weather
A persistent (daylong) storm from the southwest during the rainy season on the Brazilian coast. Compare minuano.
Industry:Weather
A period of more continental climate 3000 to more than 2000 years ago identified as part of the Blytt–Sernander sequence of inferred climates in northern Europe.
Industry:Weather
A pattern of variable brightness on the underside of a cloud layer as a consequence of the variable reflectivity of the surface immediately beneath, whether ice, snow, land, or water. This term is used mainly in polar regions. See snow blink, ice blink.
Industry:Weather
A partial tide, with a period of 12 hours, caused by the tide-producing force of the sun. See solar atmospheric tide.
Industry:Weather
A parameterization of the rate of loss of gases or aerosol particles from the atmosphere by their incorporation into larger drops, for example, rain or other forms of precipitation.
Industry:Weather
