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| Keywords: split beam calibration splitbeamcalibration metal tungsten ball metaltungstenball noaa noaa ship noaaship national ocean service nationaloceanservice ocean technology research sonar fish coral coral reef coralreef u.s. virgin islands usvirginislands acoustic sonar acousticsonar outdoor Bosun Group Leader James Best (front) and scientist Chris Taylor prepare to lower the tungsten ball into the water while keeping the many lines connected to the ball untangled. Once the ball is in the water, people holding lines connected to the ball maneuver it underneath the vessel to the location of the acoustic sonar. This process may take hours. Learn more: oceanservice.noaa.gov/caribbean-mapping/ Bosun Group Leader James Best (front) and scientist Chris Taylor prepare to lower the tungsten ball into the water while keeping the many lines connected to the ball untangled. Once the ball is in the water, people holding lines connected to the ball maneuver it underneath the vessel to the location of the acoustic sonar. This process may take hours. Learn more: oceanservice.noaa.gov/caribbean-mapping/ | ||||
