Skip to main content
U.S. flag

An official website of the United States government

Sound velocity casts on Cape Cod Bay

Detailed Description

Sometimes the fog can be as thick as pea soup! The captains use radar and keen eyesight to navigate in such conditions. Woods Hole Coastal and Marine Science Center staff,  Alex Nichols and Wayne Baldwin,  take a sound velocity cast off the back of the boat.


Public Domain.