Same as mirror nephoscope.

Apparatus using the combined simultaneous action of a bimetallic thermometer and a hair hygrometer to move a needle in front of a divided scale. fts construction permits dew point variations to be indicated approximately.

A wind blowing in a direction opposite to the heading of a moving object, thus opposing the object's intended progress; the opposite of a tailwind.

Anemometer whicb measures wind speed by measuring the degree of cooling of a metal wire heated by an electric current. A type of cooling power anemometer.

A recording magnetometer.

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

A seasonal wind of persistent direction, characterized by a pronounced change in direction between seasons.

The scientific study of the waters of the earth, especially with relation to the effects of precipitation and evaporation upon the occurrence and character of water in streams, lakes, and on or below the land surface. In terms of the hydrologic cycle, the ...

A recording hair hygrometer.

Any one of numerous devices for the measurement of either speed alone or of both direction and speed (set and drift) in flowing water.

A modification of the dew cell used in radiosonde equipment.

The general term for anemometers operating on the principle that the heat transfer to air from an object at an elevated temperature is a function of the air speed. Examples are the hot-wire anemometer and the katathermometer.

A temperature scale on which the freezing point of water equals 32

The transducer of any hygrometer, i.e. that part of a hygrometer that quantitatively "senses" atmospheric water vapor.

A motorlike device containing a rotor and a stator and capable of converting an angular position into an electrical signal, or an electrical signal into an angular position. When several synchros are correctly connected, all of the rotors will align thems ...

Video Display Terminal. An input and display device which includes a keyboard and a screen and allows a human to communicate with a computer.

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

The closeness of agreement among measurements of the same value of the same quantity where the individual measurements are made under different defined conditions, i.e. by different methods or with different measuring instruments.

A recording anemometer.

Sustained winds greater than or equal to 40 mph or gust greater than or equal to 58 mph.