Meteorology: Random Listings RSS

The quantity to be measured (or modulated, or detected, or operated upon) which is received by an instrument. Thus, for a thermometer. temperature is the input quantity.

Category:Meteorology

The stage, on a fixed river gauge, corresponding to the top of the lowest banks within the reach for which the gauge is used as an index. Compare to flood stage.

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Same as marine rainbow.

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An absolute pyhrliometer, developed by C.G. Abbott, in which the radiation-sensing element is a blackened water-calorimeter.

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The pressure unit of the meter-ton-second system of physical units. equal to 10 millibars or 101 dynes per cm2.

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Same as mirror nephoscope.

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Instrument for measuring the depth of water from precipitation that is assumed to be distributed over a horizontal, impervious surface and not subject to evaporation.

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A liquid-in-glass thermometer which uses an organic substance such as alcohol as the thermometer liquid. This type of thermometer has a low freezing point and a high coefficient of expansion. It is less accurate, however, than a mercury thermometer.

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An instrument which automatically determines the size distribution of raindrops.

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Readily taking up and retaining moisture.

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An instrument which determines the black-body temperature of a substance by measuring its thermal radiation.

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A recording magnetometer.

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The change in the measured transducer output caused by changes in ambient temperature. Usually expressed a percentage of full scale.

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Same as recording rain gauge.

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See bimetallic thermometer.

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The combined processes by which water is transferred from the earth's surface to the atmosphere: evaporation of liquid or solid water plus transpiration from plants.

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The water portion of the earth as distinguished from the solid part, called the lithosphere, and from the gaseous outer envelope, called the atmosphere.

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The temperature to which a sample of air must be cooled, while the mixing ratio and barometric pressure remain constant, in order to attain saturation by water vapor. When this temperature is below O

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Any one of numerous devices for the measurement of either speed alone or of both direction and speed (set and drift) in flowing water.

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A rain gauge or array of rain gauges designed to measure the inclination and direction of falling rain.

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