In the News
Robotic gliders provide key tool to measure ocean sound levels
At a time when ocean noise is receiving increased global attention, researchers at Oregon State University and National Oceanic and Atmospheric Administration (NOAA) have developed an effective method to use an underwater robotic glider to measure sound levels over broad areas of the ocean. Joe Haxel is quoted.
'Sneaky’ underwater robot spent 18 days recording sea creatures — and noisy humans, too
For 18 days, an underwater robot dived and surfaced and dived and surfaced — some 402 times in all — listening to the ocean’s depths as it traveled hundreds of miles along the continental shelf off the Washington and Oregon coastline. Chris Meinig and Joe Haxel are featured.
Third Pod from the Sun: Eavesdropping on the Ocean
In this episode of AGU's podcast, Bob Dziak, head of NOAA PMEL’s acoustics program, describes the sounds scientists study with their underwater microphones, including the noises they’ve heard at the deepest part of the ocean in the Mariana Trench and a mysterious “bloop, and how they use that information to understand natural processes and the impact from human activities.
Constant Wonder: The Loudest Creature In the Ocean Is . . . An Iceberg?
Bob Dziak is featured (around 88:30) on an episode of Constant Wonder talking about ocean sound, including icebergs moving, on BYU radio.
The 'roars' of Antarctica
Researchers from the University of Granada lead an international project to study two submarine volcanoes in Antarctica with great seismic activity. PMEL's Acoustic Program was part of the research deploying hydrophones in the Bransfield Strait. This article is in Spanish.