Sand dunes

Multibeam image of sand dune field south of Discovery Island. The larger of these features are the largest single submarine dunes in the world.

Huntec Boomer reflection profile of the dunes shown above between 1000 and 1500 m. This profile shows internal clinoform
reflections, indicating transport to the east. The dunes are composed of coarse sand to fine gravel.

Huntec Boomer profile of the large dune above, played back at 1:1 scale, showing a stoss side of about 12 degrees and a lee side of nearly 20 degrees.

 

 

Huntec Boomer profile over sand dunes just west of Port Angeles.