The Internal Structure of Fast Ice Near Narwhal Island, Beaufort Sea, Alaska

Results of measurements of salinity, grain size, substructure dimensions and crystal fabrics of the undeformed 2.15-m-thick annual sea ice sheet near Narwhal Island, Alaska, are presented. A notable observation was the formation of a dominant c-axis horizontal structure in all ice below 14 cm, inclu...

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Bibliographic Details
Main Authors: Gow,Anthony J, Weeks,Wilford F
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1977
Subjects:
Snow
Ice and Permafrost
*ICE
CRYSTAL STRUCTURE
ALASKA
SALINITY
SEA ICE
BEAUFORT SEA
Fast ice
Arctic
Beaufort Sea
Ice
Ice Sheet
narwhal*
permafrost
Sea ice
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA047785
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA047785
Description
Summary:Results of measurements of salinity, grain size, substructure dimensions and crystal fabrics of the undeformed 2.15-m-thick annual sea ice sheet near Narwhal Island, Alaska, are presented. A notable observation was the formation of a dominant c-axis horizontal structure in all ice below 14 cm, including transformation to a pronounced east-west alignment of the c-axes by a depth of 66 cm. This study confirms earlier reports of the occurrence of very strong horizontal c-axis alignments in arctic fast ice. (Author)

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