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Tuesday
Feb192013

Double Ended Folded Ridges

The southern end of the double ended folded ridge in mid February.

Most pressure ridges are connected to other ridges or shore but occasionally one will form that is isolated in the middle of an ice sheet with no connections. It also grew to 50+ foot width and it thinned the ice for 350 feet from its edge.  Usually folded ridges freeze up or turn into overlapped ridges.  One formed early in the 2012 season on Shelburne Pond (VT) and persisted for the entire ice season.  Click here for a report on what we observed and what we think is going on.