pl23_theb3803.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb3803jpgDescription
Early continuous sounding record from acoustic system.Off of OCEANOGRAPHER.C&GS; didn't use recording instruments until late 1930's
Credit
Family of Rear Admiral Paul A. Smith, C&GS;
Display Date
1939
Location
Hudson Canyon area Photo
Collection
Historic Coast & Geodetic Survey
Nautical Charting
Bathymetry - Mapping the Features
1920-1985
Keywords
Charting
Soundings
Bathymetry
Acoustic