National Oceanic and
Atmospheric Administration
United States Department of Commerce

Peggy

What happens when the Bering Sea’s ice disappears?

Record low sea ice in 2018 sent ripples through the entire Arctic ecosystem. Peggy’s data were a bit of a shock. From an anchored vantage point in an expanse of the southeastern Bering Sea west of Alaska, Peggy, or mooring M2, had monitored conditions in the water for 25 years. A line of sensors extended down more than 70 meters to where Peggy was tethered to the seafloor, collecting information on temperature, salinity and other properties of the water. Phyllis Stabeno is quoted and the Arctic Report Card is referenced. 

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