A rain gauge which automatically records the amount of precipitation collected, as a function of time.

Infrared radiation emitted by or being propagated through the atmosphere.

The mean difference between the readings of a given instrument and those of a standard instrument.

A measure of the amount of "spin" (or rotation) in the atmosphere.

A radar which is used to obtain the azimuth elevation, and slant range of an airborne target.

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

A precipitation amount of less than 0.005 inches. Also, the record made by any self-registering instrument.

Erasable Programmable Read Only Memory. Programable read-only memory which can be erased, usually by ultraviolet light, and re-programmed.

A conically shaped, copper rain gauge shield.

An anemometer which derives wind speed from measurements of dynamic wind pressures. Wind blowing into a tube develops a pressure greater than the static pressure, while wind blowing across a tube develops a pressure less than the static. This pressure dif ...

Navy Operational Global Atmospheric Prediction System. A global meteorological model operated by the Department of Defense.

The total area drained by a river and its tributaries. Same as watershed.

A hydrostatic principle that pressure supplied to an enclosed fluid is transmitted undiminished to every portion of the fluid and to the walls of the containing vessel.

Sustained winds greater than or equal to 40 mph or gust greater than or equal to 58 mph.

Wind with a speed between 48 and 55 knots (55 and 63 mph), Beaufort scale number 10.

The humidity transducinu element in a Diamond-Hinman radiosonde. Also called electrolytic strip.

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

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

An instrument for measuring angles of inclination. Used in conjunction with a ceiling light to measure cloud height at night.

A power supply which achieves its output regulation by means of one or more active power handling devices which are alternately placed in the "off" or "on" states. It is more efficient than linear supplies which vary the conduction of power devices to ach ...