Ice Core Sampling Dr. Joan Gardener, left, and Dr. Rick Hagen, with the Naval Research Lab, measure and weigh an ice core sample taken during Ice Exercise 2016 at Ice Camp Sargo, Arctic Circle, March 10, 2016. Navy photo by Petty Officer 2nd Class Tyler N. Thompson SHARE: Download: Full Size (1.27 MB) Tags: Artic Circle, Ice Exercise 2016, Camp Sargo, Arctic Submarine Laboratory, Sailors Credit: Petty Officer 2nd Class Tyler Thompson VIRIN: 160310-N-QA919-502.JPG Photo Gallery