air sounding

air sounding

[′er ‚sau̇nd·iŋ]
(meteorology)
The act of measuring atmospheric phenomena or determining atmospheric conditions at altitude, especially by means of apparatus carried by balloons or rockets.
References in periodicals archive ?
The Sippican GPS Mark II MICROSONDE and GPS W-9000 Meteorological Processing System make up a state-of-the-art automatic upper air sounding system.
At the time, it was expected that the main threat would be straight line winds, but low level hodographs were strong, with storm-relative helicity values of 300-400 J/Kg and upper air soundings with 0-6km shear at 50-60 kts.