A thermometer consisting of a clock mechanism the speed of which is a function of temperature.

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

Same as contact anemometer.

The record of an aneroid barograph.

A wave resulting from the action of wind on a water surface.

Same as windsock.

A thermometer which utilizes the thermal properties of gas. There are two forms of this instrument: (a) a type in which the gas is kept at constant volume, and pressure is the thermometric property, and (b) a type in which the gas is kept at constant pres ...

A set of electrical conductors, often on a backplane, that carry data and power signals among the various components of a computer.

Any sudden and heavy rain, almost always of the shower type.

See calorie.

A device for measuring sea-surface waves. It consists of a weighted pole below which a disk is suspended at a depth sufficiently deep for the wave motion associated with deepwater waves to be negligible. The pole will then remain nearly as if anchored to ...

The atmospheric pressure at mean sea level either directly measured by stations at sea level or empirically determined from the station pressure and temperature by stations not at sea level. Used as a common reference for analyses of surface pressure patt ...

A instrument designed to study small fluctuations of some quantity. The microbarograph is an example of a recording pressure variometer.

An empirical curve relating stream discharge or stage at a point on a stream to discharge or stage at one or more upstream points and, possibly. to other parameters. Also called stage relation.

Situated on the side from which the wind blows.

A common type of terrestrial scintillation; shimmering over a hot surface (such as a roadway) on a quiet, cloudless. summer day.

See hydrologic accounting.

A general term for instruments designed to measure the amount of cloudiness.

An instrument which determines the black-body temperature of a substance by measuring its thermal radiation.

An absolute pyhrliometer, developed by C.G. Abbott, in which the radiation-sensing element is a blackened water-calorimeter.