A tethersonde is a type of

radiosonde A radiosonde is a battery-powered telemetry instrument carried into the atmosphere usually by a weather balloon that measures various atmospheric parameters and transmits them by radio to a ground receiver. Modern radiosondes measure or calcula ...

used in atmospheric science for

atmospheric sounding Atmospheric sounding or atmospheric profiling is a measurement of vertical distribution of physical properties of the atmospheric column such as pressure, temperature, wind speed and wind direction (thus deriving wind shear), liquid water content, ...

. Tethersondes are attached to fixed or

tethered balloon A tethered, moored or captive balloon is a balloon that is restrained by one or more tethers attached to the ground and so it cannot float freely. The base of the tether is wound around the drum of a winch, which may be fixed or mounted on a vehic ...

s via a separate tether and can be moved up and down the tether to obtain multiple atmospheric readings.

References

Meteorological instrumentation and equipment {{climate-stub fr:Radiosonde#Radiosonde captive