A liquid-in-glass or liquid-in-metal thermometer using mercury as the liquid.

in folklore, a name for fire.

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

Facing away from the wind.

That part of snow melt that reaches stream channels as runoff.

A metallic element of atomic weight 200.6 1, unique (for metals) in that it remains liquid under all but very extreme temperatures.

A component of the wind (often using Cartesian coordinates. i.e. X and Y wind vectors). Also, an arrow representing wind velocity, drawn to point in the direction of the wind and with a length proportional to wind speed.

Apparatus consisting of (a) standard radiosonde and radiosonde ground equipment to obtain upper-air data on pressure, temperature, and humidity, and (b) a self-tracking radio direction-finder to provide the elevation and azimuth angles of the radiosonde s ...

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 ...

A self-recording thermometer.

To free something from the binding action of ice by warming it to a temperature above the melting point of ice. Also, a warm spell when ice and snow melt.

The change in a performance characteristic caused by a change in a specified operating condition from reference operating condition, all other conditions being held within the limits of reference operating conditions.

A device used to switch electrical current at a selectable setpoint temperature.

Not a linear function of the relevant variables.

Precipitation falling from a cloud, usually in wisps or streaks, but evaporating before it reaches the ground.

The total of direct solar radiation and diffuse sky radiation received by a unit horizontal surface. Global radiation is measured by pyranometers.

See gain.

Rate of wind movement in distance per unit time.

In general, the transformation of data from a "raw" form to some useable form. In meteorology, this often refers to the conversion of the observed value of an element to the value which it would theoretically have at some selected or standard level. The m ...

(1) The ratio of the speeds of a chemical reaction at two temperatures differing by 10