As the ocean warms because of climate change, the louder din could mask other marine animals’ calls used to navigate, forage, and find mates.
acoustics
Posted inFeatures
Machine Fault
Applying machine learning to subtle acoustic signals from an earthquake machine has revealed big clues about fault behavior in the lab.
Posted inNews
Shells Sound Out Sand’s Acoustic Signatures
Shell remains give sand from different locations unique acoustic signatures.
Posted inEditors' Highlights
CAT Pictures of Internal Solitary Waves in Indonesian Strait
Huge and rapid subsurface temperature changes associated with propagating internal solitary waves were observed from a moored coastal acoustic tomography (CAT) system in Lombok Strait in Indonesia.
Posted inEditors' Highlights
Laboratory Study Probes Triggering Mechanisms of Earthquakes
A new experimental technique traces the state of a shearing fault gouge and shows for the first time how friction of a fault surface can change as a function of varying normal stress.
Posted inScience Updates
Monitoring Volcanic Craters with Infrasound “Music”
Volcanic craters act as giant horns that emit intense low-frequency sounds. Changes in this infrasound may be used to track rising lava lakes and identify signals of future eruptions.
Posted inNews
Audio Reveals Sizes of Methane Bubbles Rising from the Seafloor
A sensitive underwater microphone captures the sounds of methane, a potent greenhouse gas, escaping into waters off the coast of Oregon. Using this sound, researchers can estimate the bubbles’ sizes.
Posted inEditors' Highlights
Acoustic Monitoring of Inelastic Compaction in Porous Limestone
During triaxial compression experiments, acoustic monitoring reveals compaction localization in a high porosity limestone, accompanied by a significant decrease in P-wave velocity.
Posted inResearch Spotlights
Acoustic Imaging of Oceanic Mixing in the Gulf of Mexico
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.
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.