Meteorology: Random Listings RSS

Same as atmometer.

Category:Meteorology

A seasonal wind of persistent direction, characterized by a pronounced change in direction between seasons.

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Same as atmospheric pressure.

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Temperature to which absolutely dry air would have to be brought in order for it to have the same density as moist air, considered at the same pressure.

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Same as ombrometer.

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One of the radiation laws which states that the wavelength of maximum radiation intensity for a black body is inversely proportional to the absolute temperature of the radiating black body.

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A line drawn through geographical points having the same duration of sunshine (or other function of solar radiation) during a given interval of time.

Category:Meteorology

February 2nd. In American folklore, a day that is popularly supposed to provide the key to the weather for the remainder of the winter. Specifically, if the ground-hog upon emerging from its hole casts a shadow, it will return underground, thereby forebod ...

Category:Meteorology

An instrument for recording global solar radiation.

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An evaporation pan in which the evaporation is measured from water in a pan floating in a larger body of water.

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The process in which incident radiation is retained by a substance. A further process always results from absorption.

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For a given locality and month, an empirical expression devised for the purpose of classifying climates numerically on the basis of precipitation and evaporation.

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Abbreviation for precipitation effectiveness index.

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A constant which describes the performance of a wind vane in response to a step change in wind direction. It is calculated from the relative amount of overshoot on two successive swings (half cycles) of a decaying oscillation. This specification is dimens ...

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A pressure tube anemometer, consisting of a pitot tube mounted on the windward end of a wind vane and a suitable manometer to measure the developed pressure and calibrated in units of wind.

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A type of cloud height indicator which uses a searchlight to project vertically a narrow beam of light onto the cloud base. The height of the cloud is determined using a clinometer, located at a known distance from the ceiling light, to measure the angle ...

Category:Meteorology

See mote.

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An instrument for the measurement of the net flux of downward and upward total (solar and terrestrial) radiation through a horizontal surface.

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A forecast of weather elements of particular interest to aviation; including ceiling, visibility, upper winds, icing, turbulence, precipitation types, and storms.

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An instrument for the measurement of the rate of ice accretion on an unheated body.

Category:Meteorology