Coast Guard Chief Petty Officer William Winegar observes data-collection equipment from the side of the Coast Guard Cutter Healy as the equipment is raised to the surface of the water during night operations along Barrow Canyon, Friday, Sept. 1, 2017.
Teams of Coast Guard and science party members work in shifts around the clock during the second Arctic West Summer 2017 mission.
U.S. Coast Guard photo by Petty Officer 3rd Class Amanda Norcross