US Coast Guard Cutter, Polar Sea (IMAGE) Naval Research Laboratory Caption NRL's Marine Biogeochemistry section organized and led an international research expedition aboard the USCG Polar Sea in the Beaufort Sea during Sept. 15-26, 2009. Credit US Coast Guard 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.