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NOAA Photo Library Image - map00137

This excerpt from International Aspects of Oceanography, an NSF publication, was written by Wayland Vaughn of the Scripps Institution of Oceanography in 1937 and describes the contribution of both echo-sounding and the navigation system termed Radio-Acoustic Ranging (RAR) to the mapping of the seafloor. RAR was developed by the C&GS and used to survey U.S.continental margins in the 1930's.

Image ID: map00137, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collection

High Resolution Photo Available

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Last Updated:
November 10, 2017