Detailed analysis of acoustic reflections suggests that vertical mixing of oceanic water is enhanced at greater depths, thanks to weak stratification and the roughness of the seabed.
acoustics
Posted inScience Updates
Sounding the Black Smoker Plumes
Imaging sonar, an emerging technique for monitoring heat from seafloor hydrothermal vents, gives scientists a new look at interacting systems off the coast of Canada.
Posted inResearch Spotlights
Measuring Earth’s Elasticity
A new study illuminates how crustal rocks break and stretch.
Posted inScience Updates
Geoacoustics Takes to the Sky
Airborne Geoacoustics Workshop; Albuquerque, New Mexico, 3 January 2017
Posted inResearch Spotlights
Buzzing Ice Shelf Makes Waves in the Air Above
The resonant vibrations of the Ross Ice Shelf in Antarctica are disturbing the atmosphere above it, creating huge ripples.
Posted inScience Updates
Building an Accessible Archive for Water Column Sonar Data
The Water Column Sonar Data Archive aggregates and curates sonar data sets from many sources, giving researchers access to much more information than they could collect on their own.
Posted inResearch Spotlights
What Makes Long-Runout Landslides So Mobile?
New research shows that acoustic waves rippling through some large landslides can reduce friction and allow slides to run out long distances.
Posted inNews
Sound Waves Help Scientists Track Volcanic Eruptions
When sound waves hit the ground, they shake seismometers like earthquake waves. Scientists can now use these sound-induced seismic waves to investigate volcanic activity.
Posted inResearch Spotlights
Plate Displacement Rate Offers Insight into 2011 Tohoku Quake
For the first time, scientists use GPS to measure the displacement rate of the subducting Pacific Plate near the source of disastrous shaking in 2011.
Posted inScience Updates
Using Sounds from the Ocean to Measure Winds in the Stratosphere
Stratospheric winds deflect acoustic waves from the oceans. With the right data and the math to analyze them, these waves tell us about the weather aloft.