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- Title
Late-summer Pack Ice in the Canadian Archipelago: Thickness Observations from a Ship in Transit.
- Authors
Dumas, Jacqueline A.; Melling, Humfrey; Flato, Gregory M.
- Abstract
A digital video camera was used to photograph ice blocks turned on edge by the passage of the icebreaker CCGS Des Groseilliers operating in the Canadian High Arctic in August 2002. Ice thickness was derived from photogrammetry to an accuracy of about 10%, with a possible negative bias of about 3%. Further (presumably negative) bias related to route selection is unknown. The average thickness of blocks measured during half-hour intervals of observation varied between 0.35 and 0.70 m; the higher values are likely indicative of second-year ice. The greatest thickness of any single block was less than 2 m. Histograms of thickness were nearly symmetric and approximately Gaussian...
- Subjects
CANADA; ICE breaking operations; PHOTOGRAMMETRY; GAUSSIAN processes; METEOROLOGY; ATMOSPHERE
- Publication
Atmosphere - Ocean (Canadian Meteorological & Oceanographic Society), 2007, Vol 45, Issue 1, p57
- ISSN
0705-5900
- Publication type
Article
- DOI
10.3137/ao.v450105