National Geographic : 1946 Oct
Uncle Sam's Icebox Outposts Army Observer, Hydrogen Balloon, and Theodolite Make Up a Greenland Weather Team By following the gas bag, the telescope determines upper-wind direction and velocity. Other balloons carry trans mitters radioing data through clouds and darkness. Greenland observations guided Atlantic flights. o National Geographic Society Kodachromes by John E. Schneider For Drinking Water, Soldiers at Marrak Point Chop a Hole in Nature's Icebox This same hole may be used for catching fish. If an 80-mile wind confines the men, they melt snow. Marrak Point is an emergency landing field in southwest Greenland.