Accession Number : ADA181205

Title :   Mechanical Properties of Multi-Year Sea Ice. Phase 1: Ice Structure Analysis,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Richter-Menge,Jacqueline A ; Cox,Gordon F ; Perron,Nancy M

PDF Url : ADA181205

Report Date : Mar 1987

Pagination or Media Count : 36

Abstract : 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 and/or 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.

Descriptors :   *SEA ICE, CRYSTALS, FIELD TESTS, GRAIN SIZE, ICE, MECHANICAL PROPERTIES, ORIENTATION(DIRECTION), SAMPLING, STRUCTURAL ANALYSIS, TEXTURE, LONG RANGE(TIME)

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE