NRL Arctic Mapping (IMAGE) Naval Research Laboratory Caption First deployment of an earlier version of the Ice-tethered acoustic Buoy (ITAB), March 2017. Credit (U.S. Navy photo) 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.