City of Rio Sonar (IMAGE) NOAA Headquarters Caption These are Coda Octopus 3-D Echoscope sonar images of the SS City of Rio de Janeiro. Credit Coda Octopus / NOAA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.