Changes in Multiyear Landfast Sea Ice in the Northern Canadian Arctic Archipelago

Sierra Grace Pope
For most of the 20th century, multiyear landfast sea ice (MLSI) existed in semi-permanent plugs across Nansen Sound and Sverdrup Channel and formed an incipient ice shelf in Yelverton Bay, Ellesmere Island in the northern CAA. Both plugs broke in 1962 and 1998, and several breakups within the last decade indicate that the plugs are becoming temporary seasonal features. The history of the plugs is reviewed using Canadian Ice Service ice charts, satellite imagery and...
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