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2017:  JAN | FEB | MARCH | APRIL | MAY | JUNE | JULY | AUG | SEPT | OCT | NOV | DEC
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August 2017 Issue

25 Years Ago 1992. AT&T developed a prototype digital sonar device to find materials suspended in mid-ocean or buried in seabeds. It uses AT&T Bell Laboratories’ digital signal processing technology in an 8-by-27-in. pressurized cannister. ... The U.S. Office of Naval Research discovered a new means of studying the ocean acoustically, relying on naturally occurring ambient noise. Scattered sound radiation could be focused on an image plane via acoustic lens, processed and displayed for swimmers or mine detection. ... Two Era Aviation helicopters and an Alaska-based crew traveled to the Sakhalin Islands to provide the first crew support services in the Arctic. This was the first time a U.S. helicopter operator provided and flew U.S.-registered helicopters in Russia.

15 Years Ago 2002. Emu Ltd. completed a series of survey and environmental studies to support proposed European offshore renewable energy developments. ... With the help of a small Canadian technology company, the Canadian Coast Guard installed the first fully lit marine navigation system in the world using a lightweight, LED, solar-powered marine light. ... Tim Kusky discovered the world’s first large, intact piece of oceanic mantle from the planet’s earliest period, the Archean. The nearly mile-long section of rock may hold clues as to when life developed on the planet.

10 Years Ago 2007. Odyssey Marine Exploration Inc.’s application for listing its common stock on the Nasdaq Stock Market was approved. ... The Woods Hole Oceanographic Institution found new evidence that the fragmented structure of seafloor faults, along with previously unrecognized volcanic activity, may be dampening the effects of deep-ocean quakes. ... The first buoy to monitor ocean acidification was launched in the Gulf of Alaska. Sensors to measure climate indicators were attached to the 10-ft.-diameter buoy to measure air-sea exchange of carbon dioxide, oxygen and nitrogen gas, in addition to the pH of surface waters.


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Sea Technology is read worldwide in more than 115 countries by management, engineers, scientists and technical personnel working in industry, government and educational research institutions. Readers are involved with oceanographic research, fisheries management, offshore oil and gas exploration and production, undersea defense including antisubmarine warfare, ocean mining and commercial diving.