This is an image taken with the Klein System 530.
The imaging frequency was 50kHz.
Imaging range is 600 meters per side.
The Image is slant range corrected.
This image is of iceberg scours.

The icebergs were resting on the sea floor having drifted or been blown into shallow water. The scours were formed when the wind and currents push the bergs over the bottom This image was recorded off shore of Tutoyaktuk, Northwest Territories Canada.