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Contact: Gisela E. Speidel
University of Hawaii ‑ SOEST


Caption: This image shows a weather balloon on its voyage to the upper atmosphere. Launched once or twice a day from stations throughout the world, balloons are used to measure wind speed and direction up to 19 miles high.

Credit: Cliff Lawson, Radiosonde Museum.

Usage Restrictions: According to the policies of the Radiosonde Museum.

Related news release: The tropical upper atmosphere 'fingerprint' of global warming

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