The radiosonde temperature sensor is a thermistor
, the humidity sensor is a hygristor
, and the pressure sensor is an aneroid capsule
. Some radiosondes do not measure pressure, but pressure data are calculated from the hypsometric equation
using temperature, humidity, and height data. The data collected from radiosonde observing systems produce temperature, humidity, and wind speed and direction profiles
as a function of height, pressure, and location. Location is important because the instrument is carried by the wind
as it rises. In some cases, data are collected both during the ascent and decent of the instrument. The complete sounding
is frequently referred to as a RAOB
, an acronym for radiosonde observation
The radiosonde balloon carries the instrument to about 30 000 m (100 000 ft) where the balloon bursts and the instrument parachutes to Earth. Roughly 20% of the instruments are recovered and refurbished.
See also dropsonde.
, radiosonde observation
Term edited 30 December 2021.
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