Meteorology: All Listings RSS

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A measure, proposed by Angstrom, of the precipitation effectiveness of a region.

Category:Meteorology

Radiation coming from the solid angle of the sun's disc, as opposed to diffuse sky radiation, effective terrestrial radiation, or radiation from any other source. Direct solar radiation is measured by pyrheliometers.

Category:Meteorology

A strong wind characterized by a sudden onset, a duration on the order of minutes, and a rather sudden decrease in speed.

Category:Meteorology

A rocket designed primarily for routine upper air observations in the lower 250,000 feet of the atmosphere, especially that portion inaccessible to balloons (above 100,000 feet).

Category:Meteorology

An air-launched balloon designed to be released in the eye of a tropical cyclone, float within the eye at predetermined levels, and transmit radio signals for RDF positioning.

Category:Meteorology

A standard unit of atmospheric pressure, defined as the pressure exerted by a 760 mm column of mercury at standard gravity (980.665 cm/sec2 ) at O

Category:Meteorology

Same as dew-point hygrometer.

Category:Meteorology

A feeble oscillatory disturbance of the earth's crust, detectable only by very sensitive seismographs. Certain types of microseisms seem to be closely correlated with pressure disturbances. See microbarm.

Category:Meteorology

Programmable Read-Only Memory. Read-only memory which can be programmed by the user using a special hardware programmer.

Category:Meteorology

The meteorological visual range, which can be estimated from the average extinction coefficient using the Koschmieder equation.

Category:Meteorology

Precipitation of white, opaque, spherical or conical ice particles that are crisp and easily crushed and that have diameters of 2 to 5 mm.

Category:Meteorology

A line of equal or constant pressure.

Category:Meteorology

A unit of pressure which directly expresses the force exerted by the atmosphere. Equal to 1000 dynes/cm2 or 100 pascals.

Category:Meteorology

A graduated scale placed in a position so that the stage of a stream may be read directly from it. Staff gauges may be placed on bridge piers or pilings, etc., or placed on specially constructed supports.

Category:Meteorology

Anemometer whicb measures wind speed by measuring the degree of cooling of a metal wire heated by an electric current. A type of cooling power anemometer.

Category:Meteorology

See hurricane beacon.

Category:Meteorology

A clay atmometer consisting of a hollow ceramic sphere through which evaporation occurs. Evaporation is measured by the loss of water from the reservoir which feeds the sphere.

Category:Meteorology

Low

An area of low barometric pressure, with its attendant system of winds. Also called a depression or cyclone.

Category:Meteorology

Thermometer used for measuring the lowest temperature attained during a given interval of time, for example, a day.

Category:Meteorology

Wind with a speed between 34 and 40 knots (39 and 46 mph); Beaufort scale number 8.

Category:Meteorology

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