Isabelle Marcus, an ice analyst from the U.S. National Ice Center, prepares to throw a scientific buoy into the Arctic Ocean while aboard U.S. Coast Guard Cutter Healy (WAGB 20) on Sep 18, 2023. The buoy collects and transmits wave, wind, sea surface temperature, and barometric pressure data in real-time. (U.S. Department of Defense photo by Sgt. Carter Acton)