Imagine spending 4 days traveling miles up a frozen river in Alaska by snow machine, auguring holes through ice as thick as 80 cm, and looking for juvenile salmon. That’s the adventure NOAA’s Alaska Region Habitat Conservation Division Hydropower Coordinator Susan Walker and colleague Jeff Davis set off on last February on the Susitna River, […]
NOAA officially launched its 2015 Arctic hydrographic survey season this morning, in Kodiak, Alaska, in a World Ocean Day ceremony which showcased the deployment of the NOAA ships Rainier and Fairweather. In remarks directed to the crews of NOAA ships, Vice Admiral Michael S. Devany, NOAA deputy under secretary for operations, said, “Most Arctic waters […]
Just how noisy is the ocean? Quiet enough to hear a pin drop or so noisy you can barely hear the person next to you? NOAA is now undertaking a novel effort to answer these questions. In 2014 NOAA began establishing its first-ever coordinated Ocean Noise Reference Station Network—a set of 10 undersea listening stations […]
A new NOAA-led report shows that Arctic air temperatures continue to rise at more than twice the rate of global air temperatures, a phenomenon known as Arctic amplification. Increasing air and sea surface temperatures, declining reflectivity at the surface of the Greenland ice sheet, shrinking spring snow cover on land and summer ice on the […]