Weather balloon
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A weather balloon, also known as a sounding balloon, is a high-altitude balloon that carries instruments into the stratosphere for measuring atmospheric pressure, temperature, humidity and wind speed
Picture taken at approximately 30 km above Oregon using a 1,500 gram weather balloon
Rawinsonde weather balloon just after launch. Notice a parachute in the center of the string and a small instrument box at the end. After release it measures many parameters. These include temperature, relative humidity, pressure, and wind speed and wind direction. This information is transmitted back to surface observers.
A hydrogen filled balloon at Cambridge Bay Upper Air station, Nunavut, Canada
High-altitude balloon
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High-altitude balloons or stratostats are usually uncrewed balloons typically filled with helium or hydrogen and released into the stratosphere, generally attaining between 18 and 37 km above sea leve
Weather balloon
…A weather balloon, also known as a sounding balloon, is a high-altitude balloon (HAB) that carries instruments into the stratosphere for measuring atmospheric pressure, temperature, humidity and wind speed by means of a small…
The BLAST high-altitude balloon just before launch on June 12, 2005
NASA Super Pressure Balloon (2016)
A latex weather balloon bursting at about 29.5 km (18.3 mi; 97,000 ft)