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![Early continuous sounding record from acoustic system theb3803.jpg Early continuous sounding record from acoustic system](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb3803.jpg?itok=XttOUmds)
Description
Early continuous sounding record from acoustic system.Off of OCEANOGRAPHER.C&GS; didn't use recording instruments until late 1930's (Image credit: Family of Rear Admiral Paul A. Smith, C&GS; )
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