Final answer:
Radiosondes are used to measure tropospheric temperature trends. They provide valuable data for weather forecasting and help meteorologists analyze and predict weather patterns.
Step-by-step explanation:
These devices are called radiosondes and are used to measure tropospheric temperature trends. They are most commonly used in weather forecasting. Radiosondes are usually attached to weather balloons and are equipped with instruments to measure air temperature, atmospheric pressure, humidity, and wind speed as they ascend through the atmosphere. The data collected by radiosondes helps meteorologists analyze and predict weather patterns.