Lt. Jeffrey McCroskey, the medical officer aboard Coast Guard Cutter Healy, conducts medical training on the cutter's mess deck Sept. 25, 2015. Healy is underway in the Arctic Ocean in support of the National Science Foundation-funded Arctic Geotraces, part of an international effort to study the distribution of trace elements in the world's oceans. ( Coast Guard photo by Petty Officer 2nd Class Cory J. Mendenhall)

---

Size: 4504px × 2997px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arctic, coast, geotraces, guard, healy, icebreaker, ocean