RV Polarstern's Multibeam System (IMAGE) Helmholtz Association Caption Multibeam bathymetric survey techniques provide a rapid means of determining the morphology and nature of the seafloor. The recent Hydrosweep DS-2 System onboard RV Polarstern provides 59 individual soundings of the water depth and echo strength for each ping. Moreover sidescan information (2048 echos per ping) is retrieved. The system can be operated with 90 or 120 degrees fan angle and is designed for deep sea observations. Credit Illustration: Alfred-Wegener-Institut Usage Restrictions For free use in connection with publications (print, internet, radio, TV) on the new IBCSO map, as described in this press release of 9 April 2013. Any other usage is prohibited. 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.