Gamma ray snow gauge-
An instrument designed to determine the water content of snow by measuring the amount of gamma radiation absorbed by the snow overlying
the transmitter that is placed at the surface.
Gas thermometer-
A thermometer that utilizes the thermal properties of gas.
Geostrophic divider-
An instrument, based on the principle of the geostrophic wind scale, for determining the geostrophic wind from heights on a weather map.
Geothermometer-
A thermometer designed to measure temperatures in deep-sea deposits or in bore holes deep below the surface of the earth.
Gerdian aspirator-
An instrument used for the determination of the electrical conductivity of the atmosphere.
Gill anemometer-
A lightweight version of a propeller anemometer sometimes used instead of the more expensive sonic anemometer
for the measurement of turbulent velocity fluctuations.
Goldbeater's skin hygrometer-
A hygrometer using goldbeater's skin as the sensitive element.
Goniometer-
An instrument used for measuring geometric angles.
Grid nephoscope-
A direct-vision nephoscope that consists of a grid work of bars mounted horizontally on the end of a vertical
column and made free to rotate about the vertical axis.
