Weather balloon launch

Weather balloon launch

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Credit: BRITISH ANTARCTIC SURVEY/SCIENCE PHOTO LIBRARY

Caption: Weather balloon. Atmospheric researcher launching a radiosonde weather balloon. This balloon will carry a package of instruments up to an altitude of around 25 kilometres. It will measure temperature, humidity and atmospheric pressure. Tracking the balloon during its journey allows measurement of wind speed and direction. The balloon bursts at high altitude due to the low atmospheric pressure, and the instruments fall to Earth by parachute. Study of the atmosphere allows more accurate weather forecasting and enables environmental change to be monitored. Photographed at the Halley Research Station, Antarctica.

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Keywords: antarctic, antarctica, atmosphere, atmospheric, climate, climatology, cold, freezing, frozen, halley research station, ice, launch, launching, radiosonde, research, researcher, scientist, snow, studying, weather balloon

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