Both the radiosonde launched from the territory of Head Geophysical Observatory and methods of using it were invented by Soviet scientist Pavel Molchanov. The balloon reached the altitude of 7.8 km and registered the temperature of -40.7 degrees. Less than in an hour after the launch, the respective message was received by Leningrad Weather Bureau and Central Forecasting Institute in Moscow. Thus, meteorology broke new grounds.
In 1930, world’s first radiosonde for atmospheric investigations was launched