Uploaded May 2021 | Updated September 2026, 3 weeks ago
This film explores atmospheric ice crystal growth and weather modification techniques, as studied at NCAR in the early 1970s. Topics covered include: ice nuclei, sublimation, and crystal formation; weather modification and cloud seeding; rime and graupel; and hailstorms and the National Hail Research Experiment. Film presented by NCAR. Film by: Elmer Armstrong. Produced by: Marshall Lovrien. Sound: G. J. Collenberger. Script: Ronald Cox. Technical assistance: Charles Knight, Nancy Knight, Teisaku Kobayashi. Special thanks to: Dept. of Atmospheric Research, University of Wyoming; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan. (Color, sound.)
Copyright UCAR
This project was supported by a Recordings at Risk grant from the Council on Library and Information Resources (CLIR). The grant program is made possible by funding from The Andrew W. Mellon Foundation.
INFO B33 075 n2t.net/ark:/85065/d78w3hm0
This film explores atmospheric ice crystal growth and weather modification techniques, as studied at NCAR in the early 1970s. Topics covered include: ice nuclei, sublimation, and crystal formation; weather modification and cloud seeding; rime and graupel; and hailstorms and the National Hail Research Experiment. Film presented by NCAR. Film by: Elmer Armstrong. Produced by: Marshall Lovrien. Sound: G. J. Collenberger. Script: Ronald Cox. Technical assistance: Charles Knight, Nancy Knight, Teisaku Kobayashi. Special thanks to: Dept. of Atmospheric Research, University of Wyoming; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan. (Color, sound.)
Copyright UCAR
This project was supported by a Recordings at Risk grant from the Council on Library and Information Resources (CLIR). The grant program is made possible by funding from The Andrew W. Mellon Foundation.
INFO B33 075 n2t.net/ark:/85065/d78w3hm0
