sonar

Multi-beam sonar systems send out hundreds of sound waves in a wide fan shape to map the depth and structure of a swath of underwater landscape.

From The Wall Street Journal ● Oct. 30, 2026

The San Francisco Police Department’s Marine Unit found the submerged wreckage using boat-mounted sonar.

From Los Angeles Times ● Sep. 18, 2026

Learning forward-facing sonar became essential, says Drew Cook.

From The Wall Street Journal ● Aug. 29, 2026

So the department brought in a search company with the latest sonar technology as well as divers - and they found Schepers and her car at the bottom of the river in March 2025.

From BBC ● Jul. 31, 2026

If he’d been thinking straight, he would’ve switched the ship’s detection system from radar to sonar as soon as they left Charleston Harbor.

From "The Mark of Athena" by Rick Riordan

Mayer and other scientists argued that emerging technologies, especially multibeam sonars that produce detailed 3D images, offered an unprecedented opportunity to document little known sea floors off the U.S.

From Science Magazine ● Jan. 8, 2024

Using a variety of sonars and two remotely operated vehicles — Deep Discoverer and Serios — researchers aboard the ship are mapping and collecting samples from areas along the Aleutian Trench and Gulf of Alaska.

From Seattle Times ● Aug. 14, 2023

National Marine Fisheries Service that concluded the Navy had "killed at least six whales in an accident involving common ship-based sonars."

From Salon ● Jan. 19, 2023

Using Mr. Althaus’s research as a guide, the team’s scientists found the plane’s debris field after 11 days searching about 10 square miles of the bay’s seafloor with scanning sonars and underwater robots.

From New York Times ● May 28, 2018

Because of their sonar-blinding systems, Tom realized there was a chance of the ships losing contact with one another—especially if their analyzer sonars developed trouble.

From Tom Swift and the Electronic Hydrolung by Charles Brey