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. This information is transmitted back to surface observers.

• Image ID: nssl0020, National Severe Storms Laboratory (NSSL) Collection
• Credit: NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)

Source: NSSL [1] ; original upload in english wikipedia 15 September 2003 by en:User:Jesus is Lord

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