Same as recording rain gauge.

A hydrometeor consisting of an aggregate of microscopic and more-or-less hygroscopic water droplets suspended in the atmosphere. It reduces visibility to a lesser extent than fog. The relative humidity of mist is often less than 95 percent.

The portion of the strearnflow during any month or year derived from precipitation in previous months or years.

Same as rain-intensity gauge.

A device which converts energy from one form into another, i.e. an ac generator transducer which converts the mechanical motion of anemometer cups into an electrical signal.

The difference between the solar radiation directed downward and upward; net flux of solar radiation.

A general term for instruments which sample atmospheric suspensoids by impaction. Same as impactometer.

Automated Surface Observing System. A network of instrumented weather stations deployed primarily by the National Weather Service to make weather observations without operator involvement.

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

Part of a computer word that has meaning in itself, often, a byte.

An instrument which determines the altitude of an object with respect to a fixed level. There are two general types of altimeters: (a) the pressure altimeter, which gives an approximate measure of altitude from a pressure measurement and an assumed standa ...

The maximum distance, usually horizontally, at which a given object or light source is just visible under particular conditions of transmittance and background luminance.

Precipitation composed of white or translucent ice crystals, chiefly in complex branched hexagonal forms.

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

See mote.

An effect noted primarily in wet snow conditions when snow clings to the sides of a precipitation gauge and gradually accumulates until the gauge orifice is capped with accumulated snow. This effect can be minimized by using large collectors, and wind scr ...

An instrument for measuring temperature by utilizing the variation of the physical properties of substances according to their thermal states. Thermometers may be classified into types according to their construction; deformation thermometer, electrical t ...

A unit that represents one degree of deviation from a reference point in the mean daily outdoor temperature (usually 65

The value of the quantity measured, as indicated or otherwise provided by a measuring instrument.

Either of two colored luminous spots that appear at points 22