Characteristics of Ice in Whitefish Bay and St. Marys River During January, February and March 1979.

This report presents data on the full-scale trails of the U.S. Coast Guard Icebreaker Katmai Bay, which was tested in plate ice that varied in thickness from 10 to 33 in. (25.4 to 83.82 cm) and had a snow cover of 1 to 6 in. (2.54 to 15.24 cm). In January the average temperature was -5 C, and the ic...

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Bibliographic Details
Main Author: Vance,George P
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1980
Subjects:
Snow
Ice and Permafrost
Mechanics
*ICE
THICKNESS
MECHANICAL PROPERTIES
STEEL
PROFILES
SEASONAL VARIATIONS
WINTER
SNOW COVER
PROTECTIVE COATINGS
METAL PLATES
RIVERS
FRICTION
MICHIGAN
LAKE SUPERIOR
*Icebreaking
River ice
Lake ice
Whitefish Bay
Saint Marys River(Michigan)
St. Marys River
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA089950
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA089950
Description
Summary:This report presents data on the full-scale trails of the U.S. Coast Guard Icebreaker Katmai Bay, which was tested in plate ice that varied in thickness from 10 to 33 in. (25.4 to 83.82 cm) and had a snow cover of 1 to 6 in. (2.54 to 15.24 cm). In January the average temperature was -5 C, and the ice flexural strength was 13,363 lb/sq ft (640 kPa). In March the average temperature was -2 C and the ice flexural strength was 11,643 lb/sq ft (560 kPa). The specific weight (density) of the ice was 0.894 g/cc. The specific weight of the snow was in the area of 0.32 g/cc. The coefficient of friction between the ice/snow and steel plate (coated and uncoated) varied from a low of 0.02 in the dynamic case of ice on the Inerta 160 coating to 0.47 for the static case of snow on a rusty steel plate.

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