Publication Citation

USGS Series Professional Paper
Report Number 1365
Title Ice volumes on Cascade volcanoes; Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta
Edition -
Language ENGLISH
Author(s) Driedger, C. L.; Kennard, P. M.
Year 1986
Originating office
USGS Library Call Number -
Physical description 28 p.; 6 plates in pocket
ISBN

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Abstract

A monopulse-radar unit contained in a backpack was used to make point measurements of ice thickness on major glaciers of Mount Rainier, Washington; Mount Hood, Oregon, The Three Sisters, Oregon; and Mount Shasta, California. Glacier volumes were calculated from the resulting basal maps. The maps were used to develop volume estimation methods for use on unmeasured glaciers. These methods require a knowledge of glacier slopes, altitude and area, and an estimation of basal shear stress, with each derived from topographic maps updated by aerial photos. The estimation methods may be applicable to other glaciers in similar climatic settings. The volumes of ice and snow in billions of cu ft on the four Cascade volcanoes are as follows: Mount Rainier, 155.8; Mount Hood, 12.2; Three Sisters, 5.6; and Mount Shasta, 4.7. (USGS)