National weather stations use a radiosonde (weather balloon), which has temperature, air pressure, and humidity sensors that send back readings to the ground station. Tracking the balloon in the upper-level provides accurate snapshots of atmospheric conditions.
{"Image DocumentName": "National weather stations use a radiosonde (weather balloon), which has temperature, air pressure, and humidity sensors that send back readings to the ground station. Tracking the balloon in the upper-level provides accurate snapshots of atmospheric conditions.", "Image ImageDescription": "Doppler Radar \u2013 wave frequencies change speed (energy) as rain & winds caused by a thunderstorm moves towards or away from the radar station. Accurate wind speeds, precipitation, and storm intensity can be used by meteorologists.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}