NOAA and the U.S. Navy embarked today on a two-day research expedition to survey the condition of two sunken Civil War vessels that have rested on the seafloor of the James River in Hampton Roads, Va., for nearly 150 years.
Using state-of-the-art sonar technology to acquire data, researchers will create three-dimensional maps of the two shipwrecks, USS Cumberland and CSS Florida, to analysis on their current conditions and better understand the technological innovations of the time.