What is a Radiosonde?
Everything you need to know about the sensors we use to study the atmosphere and forecast the weather
Radiosondes are atmospheric sensors that provide an accurate, high-resolution description of the Earth’s atmosphere from the ground to 100,000 ft. Radiosondes are carried into the air by latex weather balloons filled with helium or hydrogen. Radiosondes measure atmospheric pressure, air temperature, water vapor (humidity) and winds (speed and direction). Modern radiosondes contain a GPS receiver to calculate wind speed and direction, and a radio transmitter to send the data back to the ground. Since they were first developed in the 1930s, radiosondes have become smaller, lighter, more accurate and less expensive.
For More Information
There are many websites available that can help you learn more about radiosondes and their use. Explore the links below or contact InterMet for detailed information on our radiosondes and how they’re used.