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Acoustics


Mission to the Ocean Twilight Zone

Mission to the Ocean Twilight Zone

The twilight zone is a part of the ocean 660 to 3,300 feet below the surface, where little sunlight can reach. It is deep and dark and cold, and the pressures there are enormous. Despite these challenging conditions, the twilight zone teems with life that helps support the ocean’s food web and is intertwined with Earth’s climate. Some countries are gearing up to exploit twilight zone fisheries, with unknown impacts for marine ecosystems and global climate. Scientists and engineers at Woods Hole Oceanographic Institution are poised to explore and investigate this hidden frontier.

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How Is the Seafloor Made?

How Is the Seafloor Made?

An ultrasound for the Earth? Using sound waves, a graduate student peers into the crystalline texture of the tectonic plates that cover our planet’s surface.

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Sound and Color

The Current - UC Santa Barbara

features Mark Baumgartner and Daniel Zitterbart

How Do Fish Find Their Way?

How Do Fish Find Their Way?

An MIT-WHOI Joint Program graduate student is exploring how tiny larvae hatched in the open ocean find their way to coral reefs where they settle down and live.

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Illuminating the Ocean with Sound

Illuminating the Ocean with Sound

WHOI’s new research vessel Niel Armstrong is equipped with an EK80 broadband acoustic echo sounder. Using a wide range of sound frequencies, it gives scientists the ability to identify and distinguish between different types of marine life in the depths.

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Eavesdropping on Whales

Eavesdropping on Whales

WHOI scientist Mark Baumgartner has installed a mooring in New York waters that listens for whales and sends back alerts. The prototype advance-warning system could one day help reduce shipping collisions with whales.

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A New Tsunami-Warning System

A New Tsunami-Warning System

After successfully testing a long-range underwater communications system that worked under Arctic Ocean ice, an engineering team at Woods Hole…

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Communicating Under Sea Ice

Communicating Under Sea Ice

Researchers at Woods Hole Oceanographic Institution developed a new communication and navigation system that works over long distances under Arctic sea ice, allowing scientists to use autonomous underwater vehicles to explore the ice-covered Arctic Ocean.

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