Ice Pressures at the Shore of Lincoln Bay

With increasing offshore activity in the Canadian Arctic Archipelago, there is continuing need for more detailed knowledge of forces and pressure of pack ice acting in coastal regions. In July 1974 pack ice acting on the shores of Lincoln Bay, N.W.T. presented an opportunity for making an order of m...

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Bibliographic Details
Main Author: Irwin,Gerald J.
Other Authors: DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
Format: Text
Language:English
Published: 1975
Subjects:
Physical and Dynamic Oceanography
Snow
Ice and Permafrost
*Pack ice
*Ice reporting
Ellesmere Island
Sea ice
Pressure
Density
Shores
Canada
*Lincoln Bay
Arctic
Canadian Arctic Archipelago
Arctic Archipelago
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA017630
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA017630
Description
Summary:With increasing offshore activity in the Canadian Arctic Archipelago, there is continuing need for more detailed knowledge of forces and pressure of pack ice acting in coastal regions. In July 1974 pack ice acting on the shores of Lincoln Bay, N.W.T. presented an opportunity for making an order of magnitude determination of sea ice pressure in the littoral zone. From considerations of ice uplift, block dimensions and density, moments in turing an ice block, and effort in ploughing beach material, horizontal pressures at the shore were calculated to be of the order of 0.1 MPa. Such a value, if typical of impact pressures at a protected portion of the Ellesmere Island coastline, indicates that ice floes grounding on shore should pose little threat to many types of shoreline installation.

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