Same as marine rainbow.

A conically shaped, copper rain gauge shield.

In folklore, a name for wind.

An instrument for recording global solar radiation.

An instrument for determining the direction from which radio waves approach a receiver. It may consist of a manually operated direction indicator, or it may use a servo system to position the antenna automatically in the direction of the incident waves.

See evaporative opportunity.

A point (or line) on a scale used for reference or comparison purposes. In calibration of meteorological thermometers, for example, the fiducial points are 100

The statement that the viscosity of air is independent of the density of air.

A curve showing the variation of temperature with height in the free air. See lapse rate.

Precipitation caused by the ascent of moist air over an orographic barrier such as a Mountain range.

Defect in the action of an aneroid barometer resulting in a sluggish adjustment of the index toward the correct reading when the barometer is subjected to a large and rapid change in pressure.

Extended Binary Coded Decimal Interchange Code. A standard code used to represent data using 8 bits per character.

An instrument which measures the effective terrestrial radiation. See Angstrom pyrgeometer.

The distance or length of flow of the air past a point during a given interval of time.

A thermometer with a muslin-covered bulb which is moistened. used to measure wet-bulb temperature.

A method of winds aloft observation accomplished by tracking a balloon-borne radar target or radiosonde with either radar or a radio theodolite.

Same as instrument shelter.

A common type of liquid-inglass thermometer, used, in meteorology, in psychrometers and as a maximum thermometer.

A halo consisting of a faint white circle passing through the Sun and running parallel to the horizon for as much as 360

A cup anemometer with its shaft mechanically coupled to a magneto.