Story: Weather forecasting
Released three times a day from eight places around New Zealand, weather balloons are tracked by radar to show wind speed and direction in different levels of the atmosphere. At some of these locations, the balloons carry a box of instruments called a radiosonde, which measures temperature, pressure and humidity, and transmits the measurements back to earth.
About this item
Alexander Turnbull Library, Evening Post Collection (PAColl-0614)
Reference: EP/1998/0278/2A
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Matauranga o Aotearoa, must be obtained before any re-use of this image.