A heat source, such as a space heater, used to provide more heat than that provided by a primary heating source.

An instrument for measuring snow hardness in terms of the resistance of snow to the pressure exerted by a disk attached to a spring-loaded rod, a gauge calibrated in pounds per square inch registers the amount of resistance. See Canadian hardness gauge.

A relatively small-scale, downward moving current of air.

A general term for atmospheric water in any of its forms, i.e. clouds, fog, hail, ice crystals, rain.

(1) To tip the boat over so that the boat is upside down with the mast pointing down to the sea bottom. (2) A bag in which a spinnaker or other large sail can be stowed with the lines attached so that it can be rapidly raised.

A common utility monetary measure equal to one-thousandth of a dollar or a tenth of a cent.

The difference between the selling price and the purchase price for investments.

(EPIC)EPIC codes are the abbreviations given to company share quotations (e.g. the EPIC code for.

See: 'discretionary.

(IMRO)A Self Regulating Organisation (SRO) with responsibility for monitoring the manner in which UK.

A synoptic code approved by the World Meteorological Organization in which the observable meteorological elements are encoded and transmitted in "words" of five numerical digits length. Often abbreviated synoptic code.

A rotation anemometer which has a horizontal axis upon which helicoidal shaped vanes are mounted. See windmill anemometer.

A type of electrical thermometer in which the thermal element is a substance whose electrical resistance varies with the temperature. Such thermometers can be made with very short time constants and are capable of highly accurate measurements.

A forecast of the expected stage or discharge at a specified time, or of the total volume of flow within a specified Interval of time, at one or more points along a stream.

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

An addition to a rawinsonde system which allows determination of the slant range to the radiosonde.

The storage of compressed air in a container for use to operate a prime mover for electricity generation.

A measure of actual stock price changes over a specific period of time. Defined as the standard.

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 ...

A navigational buoy on which is mounted a bell with clappers hung inside a metal cage, which is rung by the motion of the sea. It serves as a warning of shoal waters.