radiosonde

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radiosonde Instrument, comprising an aneroid barometer and sensors for temperature and humidity, that is carried aloft to the upper atmosphere by a balloon that ascends at about 5 m/s. Data is transmitted to the surface by radio. See also RAWINSONDE.

rawinsonde

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rawinsonde Radiosonde that is tracked by radio or radar to observe wind characteristics as well as to record temperature, pressure and humidity.