A Field Study of the Physical Properties, Response to Swell, and Subsequent Fracture of a Single Ice Floe in the Winter Bering Sea.

Surface strain and vertical heave response experiments were conducted for a single floe within the marginal ice zone of the winter Bering Sea. The strain was measured using an array of three strainmeters placed in a 120 deg rosette configuration, and the heave was computed from simultaneous records...

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Bibliographic Details
Main Authors: Squire,Vernon A, Martin,Seelye
Other Authors: WASHINGTON UNIV SEATTLE DEPT OF ATMOSPHERIC SCIENCES
Format: Text
Language:English
Published: 1980
Subjects:
Physical and Dynamic Oceanography
Snow
Ice and Permafrost
*SEA ICE
OCEAN SURFACE
PHYSICAL PROPERTIES
EDGES
STRAIN(MECHANICS)
FRACTURE(MECHANICS)
WINTER
SEA STATES
FLEXURAL PROPERTIES
HEAVING
BERING SEA
PACK ICE
Swells(Marine)
Ice floes
Marginal ice zones
WUNR307252
Bering Sea
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA087940
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA087940
Description
Summary:Surface strain and vertical heave response experiments were conducted for a single floe within the marginal ice zone of the winter Bering Sea. The strain was measured using an array of three strainmeters placed in a 120 deg rosette configuration, and the heave was computed from simultaneous records of vertical acceleration on the floe and in the water around the floe. Physical properties studies and underwater traverses by divers were also carried out for the floe. The data are presented and interpreted in the light of the subsequent floe fracture; the mean fracture strain amplitude epsilon is found to lie between 44 and 85 micro-strain. A discussion of the directionality of the wave energy during the experiment is also given. (Author)

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