THEORY OF DENSIFICATION OF DRY SNOW ON HIGH POLAR GLACIERS, II

• Main Author: BADER,HENRI
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
• Format: Text
• Language: English
• Published: 1962
• Subjects: *SNOW; DENSITY; LOADING(ORDNANCE PROJECTORS); MATHEMATICAL LOGIC; POLAR REGIONS; VISCOSITY; Antarctic; Greenland; Antarc*
• Online Access: http://www.dtic.mil/docs/citations/AD0294158; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0294158

The theory of snow densification is further developed on the basis of an exponential relation between viscosity and density. A linear relation between load-stress and strain rate is not valid for high stresses, and is replaced by a hyperbolic sine function. An empirical function is given for the temperature cycle correction. Two equations are derived for calculating depthdensity curves with computers, and a simplified one for use with desk calculators. InstructionsARE GIVEN FOR DETERMINATION OF FUNCTION PARAMETERS FROM FIELD DATA. Four depth-density curves for Greenland and Antarctic locations are computed and graphed to show that the theory is useful. (Author)