- Aneroid barometer
- Barograph
- Altimeter
- Radiosonde
The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere is called a radiosonde.
How it works: A radiosonde is a small, expendable instrument package that is typically attached to a weather balloon. As the balloon ascends through the atmosphere, the radiosonde transmits real-time data on temperature, pressure, and humidity back to a ground station using a radio transmitter.
What it measures: Some advanced radiosondes can also measure wind speed and direction using GPS or other tracking methods.
Importance: Radiosondes provide crucial data for weather forecasting, climate research, and atmospheric studies. They give scientists a vertical profile of the atmosphere, which is essential for understanding atmospheric conditions and processes.
Launch Frequency: Globally, hundreds of radiosondes are launched twice a day, at 00:00 UTC and 12:00 UTC, forming a vital part of the global weather observation network.
