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American Meteorological Society
行业: 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 dimensionless ratio of the effective permeability of a porous medium to the intrinsic permeability.
Industry:Weather
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The direction toward which an ocean current flows.
Industry:Weather
The discharge expected to result from the most severe combination of meteorological and hydrological conditions that are reasonably characteristic of the geographic region involved.
Industry:Weather
The distortion or lack of resolution in measuring the distance to a target by radar, lidar, or sodar caused by the finite duration of the transmitted pulse. A point target returns an echo that is spread over a range of approximately half the pulse length. See radar resolution.
Industry:Weather
The distortion that occurs in an instrument when the relative phases of the input signal differ from those of the output signal.
Industry:Weather
The determination of hydraulic conductivity in the vicinity of a well by rapidly displacing the water in the well and calculating the amount of time necessary for the well water to return to its previous level.
Industry:Weather
The difference in hydraulic potential between two equipotential lines. Analogous to the contour interval on topographic maps.
Industry:Weather
The difference between the mean virtual temperature from the surface to some specified upper level averaged around the earth at 55° latitude, and the mean virtual temperature for the corresponding layer averaged at 35° latitude.
Industry:Weather
The detection of electromagnetic radiation from lightning generally in the frequency range 10–30 kHz. The physical measurement can include the electric field, the magnetic field, or both. Sferics are generally attributed to the high current phases of source, that is, return strokes and K changes.
Industry:Weather
The difference between the amount of water actually in the soil and the amount of water that the soil can hold. The amount of water the soil can hold is generally called field capacity, which is the amount of water that remains after gravitational forces have drained water from the soil macropores. See field water-holding capacity, gravitational water.
Industry:Weather
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