New Worlds of Oceanography |
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Page 164
... devices . It is prob- lematical whether the effective range of such active “ pinging " acoustical devices can be greatly extended . However , it is likely that better results can be achieved by refinements in existing acoustic devices ...
... devices . It is prob- lematical whether the effective range of such active “ pinging " acoustical devices can be greatly extended . However , it is likely that better results can be achieved by refinements in existing acoustic devices ...
Page 177
... devices used to obtain cores , grabs , or dredges from the ocean bottom . Best known of cor- ing instruments are the Phloger , Ewing , and Kullen- berg corers , which pierce the mud bottom with tubes weighted at the top and also have ...
... devices used to obtain cores , grabs , or dredges from the ocean bottom . Best known of cor- ing instruments are the Phloger , Ewing , and Kullen- berg corers , which pierce the mud bottom with tubes weighted at the top and also have ...
Page 190
... device uses low - frequency sound , rather than high - frequency sonar , to probe underlying sediments , and usually gives ... devices that rely on intuition and educated guesswork . Temperature and salinity play hob with ordinary sonars ...
... device uses low - frequency sound , rather than high - frequency sonar , to probe underlying sediments , and usually gives ... devices that rely on intuition and educated guesswork . Temperature and salinity play hob with ordinary sonars ...
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abyssal plains animals areas Atlantic atomic Bahamas Bathythermograph biological bioluminescent bottle buoys Bureau of Commercial Center Coast and Geodetic coelacanth Commercial Fisheries continental shelves cores creatures crust depth detection developed devices drift drilling earth engineering equipment feet fish fleets fossils fresh water gallons Geodetic Survey Geological Gulf Stream Hurricane Hunters hurricanes hydrophone Indian Ocean industry instruments International island laboratory land living locate mantle marine geology marine sciences measurements ment methods miles million minerals Mohole nuclear observations ocean floor oceanographic research operations oyster Pacific phytoplankton plankton plants problems produce Project Stormfury purse seines recent saline water salt satellite scientific scientists sea bottom sea level seawater sediments shark ships sonar sound Soviet speed station storms studies submarine surface Surtsey temperature thermocline tidal current tide tion tuna U.S. Navy undersea underwater United velocity vessels wastes waves weather whaling wind Woods Hole zooplankton