e/Global horizontal sounding technique

Information
has gloss	eng: The Global horizontal sounding technique (GHOST) program was an atmospheric field research project for gathering weather data with balloons. Unlike radiosonde balloons which collect vertical atmospheric sounding data over the release point during a relatively short ascent lasting a few minutes, horizontal sounding balloons stay aloft for much longer periods lasting several weeks or months, floating at a predetermined altitude. The GHOST program studied the movement of upper-air currents and tested the feasibility of using horizontal sounding techniques to provide the necessary weather observations for very long-range global scale numerical weather prediction. starting in March 1966. This record-breaking balloon, launched from Christchurch, New Zealand by the U.S. National Center for Atmospheric Research (NCAR), continued to fly for an additional 76 days, completing 35 circumnavigations of the Earth. The longest flight of the program was 744 days, or just over two years. The balloons could not be flown in the Northern Hemisphere because the Soviet Union would not permit overflights at the time.
lexicalization	eng: Global horizontal sounding technique
lexicalization	eng: Global horizontal soundings techniques
instance of	(noun) large tough nonrigid bag filled with gas or heated air balloon