Figure 5: Ice scouring and associated features observed in the ESAS.
From: Current rates and mechanisms of subsea permafrost degradation in the East Siberian Arctic Shelf
(a) A high-resolution side-scan sonar image of an ice scour observed in the seafloor; (b) a vertical profile of the ice scour as it occurs on the high-resolution sub-bottom profile image in one location. The depth of the depression created by ice scour reaches ∼4 m; (c) a high-resolution side-scan sonar image demonstrating wide occurrence of ice scours in the seafloor in the far offshore area of the ESAS; (d) a high-resolution sub-bottom profile image showing multiple vertical profiles of the ice scours and bubble plumes propagating from the seafloor in the area of investigation.
