Petty Officer 1st Class Bradley Post, an aviation maintenance technician at Air Station Kodiak, prepares to deploy probes from an HC-130 Hercules airplane above the Arctic Circle during an Arctic domain awareness flight, June 20, 2013. These probes measure sea temperature, salinity, density and transmit coordinates that help researchers gain a better understanding of Arctic climate conditions during the summer season. (U.S. Coast Guard video by Petty Officer 3rd Class Jonathan Klingenberg)
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