MIDAlpha TitleTitleYearColor/BWRunning TimeFormatsAbstractTopics
2896TIME-LAPSE STUDIES OF GLACIER FLOWTIME-LAPSE STUDIES OF GLACIER FLOW1972b & w13 min16mm Includes material collected over several years from Pacific Northwest glaciers. Illustrates the flow of glacier ice over an icefall during periods of three to four months. From special time-lapse photography in tunnels the internal deformation of ice under pressure and the flow of a glacier over bedrock is illustrated. One time-lapse scene also illustrates the up-glacier retreat of a snowline during the summer. (Some color sequences) (Release of University of Washington Press)