Structure of sea ice in McMurdo Sound, Antarctica
Authors: Jones, Stephen J.; Hill, Brian T.
Source: Annals of Glaciology, Volume 33, Number 1, January 2001 , pp. 5-12(8)
Publisher: International Glaciological Society
Abstract:Sea-ice cores from 11 sites in McMurdo Sound, Antarctica, were collected in 1982 and their crystallography examined. All but one were first-year sea ice. The cores, approximately 2 m long, consisted typically of a thin layer of granular or snow ice (approximately 0.1m) followed by columnar-grained ice in the top metre and platelet ice in the bottom metre. Salinity and temperature measurements are reported. The columnar-grained ice usually had a strong preferred c-axis orientation in the horizontal plane and also showed a change in this preferred direction with depth in the ice. The mean c-axis orientation, however, usually aligned well with measured or implied currents in the Sound. The platelets were usually aligned with c axis horizontal or close to horizontal, and did not exhibit as marked a preferred orientation as the columnar-grained ice.
Document Type: Research Article
Publication date: January 1, 2001
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