Researched
Radiosonde
A balloon-borne radio transmitter reports pressure, temperature and humidity of the upper air (Bureau, 1929; Molchanov, 1930).
Open in the interactive tree →Radiosondes launched twice a day from stations around the world give the vertical profile of the atmosphere. They supply the starting data for weather forecast models.
Prerequisites
Unlocks
- Numerical weather prediction1950Upper-air soundings supply the initial data for forecasts