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Voyage To Inner Space
Soledad and Los Coronados Canyons.Soledad Canyon is known today as La Jolla Canyon
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Robert Peary North Pole Expedition.Sounding with piano wire through the ice.Profile of soundings tends to corroborate that Peary made it to the North Pole.
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Bathymetric map of the World's oceans.Produced by Sir John Murray
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North Atlantic Ocean showing clear delineation of Mid-Atlantic Ridge.Detail of Sir John Murray map
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Pair of piano wire sounding machines on the PATTERSON.
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Steam sounding machine on the GEDNEY.
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Sounding operations on the PATTERSON.
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Sounding machine - detail view.On the PATTERSON
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First track of sonic range finder on USS STEWART.Crossed north Atlantic with sonic sounding device.Made approximately 900 soundings from United States to Gibraltar
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Temperature contours showing continuity of Mid-Atlantic Ridge.From Atlas of the METEOR Expedition.Combining sparse depth readings and temperature to infer bathymetry
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A hand sounding machine.On the EXPLORER
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Installation of deepsea sounding equipment.C&GS; 1931 Hydrographic Manual
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LL type wireline sounding machine.C&GS; 1942 Hydrographic Manual
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Early continuous sounding record from acoustic system.Off of OCEANOGRAPHER.C&GS; didn't use recording instruments until late 1930's
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Submarine valley discovered in Georges Bank area.Work done by OCEANOGRAPHER
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Submarine valleys of Georges Bank.Contoured by Dr. Francis P. Shepard, the father of marine geology.Work done by OCEANOGRAPHER
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The Mendocino Escarpment.The initial indication of the great seafloor fracture zones.Surveyed by GUIDE between 1935-1938
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Davidson Seamount named for George Davidson of the C&GS.;This feature was the first called a seamount.Officially named by the U.S. Board on Geographic Names.Discovered by GUIDE in 1933.Error - latitude should range from 35 to 36
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Shallow water bathymetry.Sand waves off Padre Island.Delineation possible because of widespread use of recording fathometers
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The first guyot -discovered by Harry Hess of Princeton University.Flat-topped seamounts which are common in the Pacific.Discovered by Hess as naval officer in WWII. Contrary to popular belief, flat-topped seamounts were first discovered by the C&GS;
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