- 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 correction applied to an instrument to account for the effect of temperature upon its response characteristics.
Industry:Weather
The correction to the reading of a mercury barometer required by the imperfections in the vacuum above the mercury column, due to the presence of water vapor and air. This correction is a function of both temperature and pressure. See barometric corrections.
Industry:Weather
The cumulative difference between the potential evapotranspiration and precipitation during a specified period in which the precipitation is the smaller of the two.
Industry:Weather
The dark appearance of the underside of a cloud layer when it is over a surface of open water. This term is used, largely in polar regions, with references to the sky map in which water sky is darker than land sky, and much darker than ice blink or snow blink.
Industry:Weather
The depth of water that would result from the melting of a snow cover; may be expressed either at a point or as an areal average.
Industry:Weather
The depth of water that would result from the melting of the snowpack or of a snow sample. Thus, the water equivalent of a new snowfall is the same as the amount of precipitation represented by that snowfall. Compare snow density, water content.
Industry:Weather
The difference between the maximum and minimum temperatures or between the highest and lowest mean temperatures during a specified time interval, for example, daily, monthly, or seasonal.
Industry:Weather
The difference in degrees between the dry-bulb temperature and the wet- bulb temperature.
Industry:Weather
The direction from any point on the earth's surface toward the geographic North Pole; the northerly direction along any projection of the earth's axis upon the earth's surface, for example, along a longitude line. Except for much of navigational practice (which uses magnetic north), true north is the universal 0° (or 360°) mapping reference. True north differs from magnetic north by the magnetic declination at that geographic point.
Industry:Weather
The direction from which the wind is blowing. See Also prevailing wind direction.
Industry:Weather
