Keywords: national ocean service nationaloceanservice noaa caribbean u.s. virgin islands usvirginislands ocean oceanography science coral reef coralreef corals sonar multibeam sonar multibeamsonar ocean glider oceanglider remotely operated vehicle remotelyoperatedvehicle While scientists use many different methods to map what lies beneath the waves, two of the most important tools are sonar and video. Learn more: oceanservice.noaa.gov/caribbean-mapping/ While scientists use many different methods to map what lies beneath the waves, two of the most important tools are sonar and video. Learn more: oceanservice.noaa.gov/caribbean-mapping/ |