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

• 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

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)