@wattchdog
In addition, see also a recent article on Windy:
https://community.windy.com/topic/10871/the-history-of-weather-balloon
These soundings allow to obtain the profile of several parameters (temperature, dew point temperature, pressure, wind ...) and to draw this kind of diagram:
https://soaringmeteo.org/raspsounding.pdf
On Windy, soundings are not the result of launching balloons into the atmosphere, but they are obtained from weather models data at different altitudes. That makes possible to plot, for example from the ECMWF model, this kind of atmospheric profile:
[image: 1578826921677-f2359c0c-daff-4737-9622-642f643272e2.jpeg]
Soundings are much more useful to pilots than to sailors.
