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NOAA Photo Library Image - ship3203

An early published diagram of the principle of echo-sounding. Published in Special Publication No. 3 of the International Hydrographic Bureau, October 1924 . This is among the earliest of published diagrams of the echo-sounding principle.

Image ID: ship3203, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Archival Photography by Steve Nicklas, NOS, NGS


High Resolution Photo Available





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Last Updated:
May 12, 2014