View of Radar Antenna in Sierra, Greenland. Sign board reads 'Sierra Greenland Army Weather, Upper Air Installation'. Man carrying 5 Gallon Can walks out of igloo. He breaks ice in bucket using shovel.
Men dressed in winter clothing construct supply shaft in Sierra, Greenland. They cut and place wooden sheets on constructed wall of supply shaft.
Three men prepare weather data sheet in Sierra, Greenland. They draw line on sheet and look at scale. Man checks Radiosonde. Another man tunes the Oscilloscope.
man checks graph and prepares weather data sheet in Sierra, Greenland. They check radiosonde equipment that was sent aloft by weather balloon. Man records surface winds and temperatures. Man speaks over telephone.
Aircraft flies over four trailers in Sierra, Greenland. Men carrying sack gather around. Man distributes goods from container to the group.
Sign board reads 'Hydrogen-No Smoking' in Sierra, Greenland. Man mixes calcium-hydride in can to generate gas for weather balloons.