A device for measuring the river stage. Also called stream gauge.

Large Unit Financial System.

The amount of fuel necessary to generate one kilowatt-hour of electricity.

(Bridging loan)See 'gilt-edged stock'.

An additional extra tax.

Deep internal cracks caused by hydrogen.

A navigational instrument used to measure the altitude of celestial bodies

Federal Maritime Commission.

A position based on estimations of a boat's position using estimated speed, currents, and the last known position/fix - of the boat.

See hydrogen embrittlement.

Electrode potential where half-cell reaction involves only the metal electrode and its ion.

A device, similar to a phytometer, for measuring transpiration. It consists of a small vessel containing water and sealed so that the only escape of moisture is by transpiration from a leaf, twig, or small plant with its cut end inserted in the water.

A measure of long-term precipitation effectiveness. The ratio of the normal annual rainfall to the normal annual evaporation.

The boundary between the troposphere and stratosphere, usually characterized by an abrupt change in lapse rate. Its height varies from 10 to 20 km. Regions above the tropopause have greater atmospheric stability than regions below.

A method of storing a sail, e.g., by rolling the jib around the headstay.

In refrigeration, an evaporating temperature of 5 degrees Fahrenheit (F), a condensing temperature of 86 degrees F., liquid temperature before expansion of 77 degrees F., and suction temperature of 12 degrees F.

First attempt at best offer that can be matched

A record obtained from a meteorograph. A chart in which meteorological variables are plotted against time.

A large plastic constant-level balloon for duration flying (in excess of 24 hours) at altitudes above 40,000 feet, used for the determination of wind fields and the measurement of upper atmospheric parameters.

A defective maximum thermometer of the liquid-inglass type in which the mercury flows too freely through the constriction. Such a thermometer will indicate a maximum temperature that is too low.