Mechanical Properties of Multi-Year Sea Ice. Phase 1: Ice Structure Analysis,
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
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This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories granular columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular andor columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is also considered, based on the extensive field sampling that was done in the program. Keywords Ice Ice properties Ice structure Mechanical properties Sea ice.
- Snow, Ice and Permafrost